diff --git a/platformio.ini b/platformio.ini
index 5dd065503..9c6ae30f0 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -81,6 +81,7 @@ lib_deps =
   adafruit/Adafruit Unified Sensor@^1.1.4
   paulstoffregen/OneWire@^2.3.5
   robtillaart/DS18B20@^0.1.11
+  adafruit/Adafruit BMP280 Library@^2.6.3
   adafruit/Adafruit BME280 Library@^2.2.2
   adafruit/Adafruit BME680 Library@^2.0.1
   adafruit/Adafruit MCP9808 Library@^2.0.0
@@ -91,7 +92,7 @@ lib_deps =
 extends = arduino_base
 platform = espressif32@3.5.0
 build_src_filter = 
-  ${arduino_base.build_src_filter} -<nrf52/>
+  ${arduino_base.build_src_filter} -<nrf52/> -<stm32wl>
 upload_speed = 115200
 debug_init_break = tbreak setup
 
@@ -143,7 +144,7 @@ build_flags =
   ${arduino_base.build_flags} -Wno-unused-variable 
   -Isrc/nrf52
 build_src_filter = 
-  ${arduino_base.build_src_filter} -<esp32/> -<nimble/> -<mesh/wifi/> -<mesh/http/> -<modules/esp32> -<mqtt/>
+  ${arduino_base.build_src_filter} -<esp32/> -<stm32wl> -<nimble/> -<mesh/wifi/> -<mesh/http/> -<modules/esp32> -<mqtt/>
 lib_ignore =
   BluetoothOTA
 
diff --git a/protobufs b/protobufs
index 8c6ada3df..11d94c9b1 160000
--- a/protobufs
+++ b/protobufs
@@ -1 +1 @@
-Subproject commit 8c6ada3df4a9ea17a89d31b4f814d83a3c503b53
+Subproject commit 11d94c9b15e9085b0f2516735ad816a3a35d5680
diff --git a/src/ButtonThread.h b/src/ButtonThread.h
index 1549c748b..fe014246c 100644
--- a/src/ButtonThread.h
+++ b/src/ButtonThread.h
@@ -7,7 +7,7 @@
 #include "power.h"
 #include <OneButton.h>
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "nimble/BluetoothUtil.h"
 #endif
 
@@ -127,7 +127,7 @@ class ButtonThread : public concurrency::OSThread
     static void userButtonPressedLong()
     {
         // DEBUG_MSG("Long press!\n");
-#ifndef NRF52_SERIES
+#ifdef ARCH_ESP32
         screen->adjustBrightness();
 #endif
         // If user button is held down for 5 seconds, shutdown the device.
@@ -137,7 +137,7 @@ class ButtonThread : public concurrency::OSThread
                 setLed(false);
                 power->shutdown();
             }
-#elif NRF52_SERIES
+#elif defined(ARCH_NRF52)
             // Do actual shutdown when button released, otherwise the button release
             // may wake the board immediatedly.
             if ((!shutdown_on_long_stop) && (millis() > 30 * 1000)) {
@@ -163,19 +163,19 @@ class ButtonThread : public concurrency::OSThread
 
     static void userButtonDoublePressed()
     {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
         disablePin();
-#elif defined(HAS_EINK)
+#elif defined(USE_EINK)
         digitalWrite(PIN_EINK_EN, digitalRead(PIN_EINK_EN) == LOW);
 #endif
     }
 
     static void userButtonMultiPressed()
     {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
         clearNVS();
 #endif
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
         clearBonds();
 #endif
     }
diff --git a/src/DebugConfiguration.h b/src/DebugConfiguration.h
index 53ea303a2..c1d95256e 100644
--- a/src/DebugConfiguration.h
+++ b/src/DebugConfiguration.h
@@ -17,29 +17,6 @@
 
 #define DEBUG_PORT (*console) // Serial debug port
 
-// What platforms should use SEGGER?
-#ifdef NRF52_SERIES
-
-// Always include the SEGGER code on NRF52 - because useful for debugging
-#include "SEGGER_RTT.h"
-
-// The channel we send stdout data to
-#define SEGGER_STDOUT_CH 0
-
-// Debug printing to segger console
-#define SEGGER_MSG(...) SEGGER_RTT_printf(SEGGER_STDOUT_CH, __VA_ARGS__)
-
-// If we are not on a NRF52840 (which has built in USB-ACM serial support) and we don't have serial pins hooked up, then we MUST
-// use SEGGER for debug output
-#if !defined(PIN_SERIAL_RX) && !defined(NRF52840_XXAA)
-// No serial ports on this board - ONLY use segger in memory console
-#define USE_SEGGER
-#endif
-
-#else
-#define SERIAL0_RX_GPIO 3 // Always GPIO3 on ESP32
-#endif
-
 #ifdef USE_SEGGER
 #define DEBUG_MSG(...) SEGGER_RTT_printf(0, __VA_ARGS__)
 #else
diff --git a/src/FSCommon.h b/src/FSCommon.h
index 26d4f9f88..3493a8464 100644
--- a/src/FSCommon.h
+++ b/src/FSCommon.h
@@ -4,21 +4,25 @@
 
 // Cross platform filesystem API
 
-#ifdef PORTDUINO
+#if defined(ARCH_PORTDUINO)
 // Portduino version
 #include "PortduinoFS.h"
 #define FSCom PortduinoFS
 #define FSBegin() true
 #define FILE_O_WRITE "w"
 #define FILE_O_READ "r"
-#elif !defined(NO_ESP32)
+#endif
+
+#if defined(ARCH_ESP32)
 // ESP32 version
 #include "LITTLEFS.h"
 #define FSCom LITTLEFS
 #define FSBegin() FSCom.begin(true)
 #define FILE_O_WRITE "w"
 #define FILE_O_READ "r"
-#else
+#endif
+
+#if defined(ARCH_NRF52)
 // NRF52 version
 #include "InternalFileSystem.h"
 #define FSCom InternalFS
diff --git a/src/OSTimer.cpp b/src/OSTimer.cpp
index f2b38f17c..a0161cd42 100644
--- a/src/OSTimer.cpp
+++ b/src/OSTimer.cpp
@@ -15,7 +15,7 @@ bool scheduleOSCallback(PendableFunction callback, void *param1, uint32_t param2
     return xTimerPendFunctionCall(callback, param1, param2, pdMS_TO_TICKS(delayMsec));
 } */
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
 // Super skanky quick hack to use hardware timers of the ESP32
 static hw_timer_t *timer;
diff --git a/src/Power.cpp b/src/Power.cpp
index fa09eaeba..d471955b7 100644
--- a/src/Power.cpp
+++ b/src/Power.cpp
@@ -46,7 +46,7 @@ Power *power;
 using namespace meshtastic;
 
 #ifndef AREF_VOLTAGE
-#if defined(NRF52_SERIES)
+#if defined(ARCH_NRF52)
 /*
  * Internal Reference is +/-0.6V, with an adjustable gain of 1/6, 1/5, 1/4,
  * 1/3, 1/2 or 1, meaning 3.6, 3.0, 2.4, 1.8, 1.2 or 0.6V for the ADC levels.
@@ -84,7 +84,7 @@ class AnalogBatteryLevel : public HasBatteryLevel
         if (v < noBatVolt)
             return -1; // If voltage is super low assume no battery installed
 
-#ifndef NRF52_SERIES
+#ifdef ARCH_ESP32
         // This does not work on a RAK4631 with battery connected
         if (v > chargingVolt)
             return 0; // While charging we can't report % full on the battery
@@ -180,11 +180,11 @@ bool Power::analogInit()
     // disable any internal pullups
     pinMode(BATTERY_PIN, INPUT);
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     // ESP32 needs special analog stuff
     adcAttachPin(BATTERY_PIN);
 #endif
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
 #ifdef VBAT_AR_INTERNAL
     analogReference(VBAT_AR_INTERNAL);
 #else
@@ -225,7 +225,7 @@ void Power::shutdown()
     DEBUG_MSG("Shutting down\n");
     axp.setChgLEDMode(AXP20X_LED_OFF);
     axp.shutdown();
-#elif NRF52_SERIES
+#elif defined(ARCH_NRF52)
     playBeep();
     ledOff(PIN_LED1);
     ledOff(PIN_LED2);
@@ -267,7 +267,7 @@ void Power::readPowerStatus()
 
 // If we have a battery at all and it is less than 10% full, force deep sleep if we have more than 3 low readings in a row
 // Supect fluctuating voltage on the RAK4631 to force it to deep sleep even if battery is at 85% after only a few days
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
         if (powerStatus2.getHasBattery() && !powerStatus2.getHasUSB()) {
             if (batteryLevel->getBattVoltage() < MIN_BAT_MILLIVOLTS) {
                 low_voltage_counter++;
diff --git a/src/PowerFSM.cpp b/src/PowerFSM.cpp
index 306dd1390..4c84cecfc 100644
--- a/src/PowerFSM.cpp
+++ b/src/PowerFSM.cpp
@@ -63,7 +63,7 @@ static void lsIdle()
 {
     // DEBUG_MSG("lsIdle begin ls_secs=%u\n", getPref_ls_secs());
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     // Do we have more sleeping to do?
     if (secsSlept < config.power.ls_secs ? config.power.ls_secs : default_ls_secs * 1000) {
@@ -343,7 +343,7 @@ void PowerFSM_setup()
 
     uint32_t meshSds = 0;
 
-#ifndef NRF52_SERIES
+#ifdef ARCH_ESP32
     // We never enter light-sleep or NB states on NRF52 (because the CPU uses so little power normally)
 
     // See: https://github.com/meshtastic/Meshtastic-device/issues/1071
diff --git a/src/SerialConsole.cpp b/src/SerialConsole.cpp
index 49e7e017a..b066caa08 100644
--- a/src/SerialConsole.cpp
+++ b/src/SerialConsole.cpp
@@ -30,7 +30,7 @@ SerialConsole::SerialConsole() : StreamAPI(&Port), RedirectablePrint(&Port)
                       // setDestination(&noopPrint); for testing, try turning off 'all' debug output and see what leaks
 
     Port.begin(SERIAL_BAUD);
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
     time_t timeout = millis();
     while (!Port) {
         if ((millis() - timeout) < 5000) {
diff --git a/src/configuration.h b/src/configuration.h
index 6ab956176..19e570024 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -62,79 +62,15 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /// Convert a preprocessor name into a quoted string and if that string is empty use "unset"
 #define optstr(s) (xstr(s)[0] ? xstr(s) : "unset")
 
-#ifdef PORTDUINO
-
-#define NO_ESP32 // Don't use ESP32 libs (mainly bluetooth)
-
-#elif defined(NRF52_SERIES) // All of the NRF52 targets are configured using variant.h, so this section shouldn't need to be
-// board specific
-
-//
-// Standard definitions for NRF52 targets
-//
-
-#define NO_ESP32 // Don't use ESP32 libs (mainly bluetooth)
-
-// We bind to the GPS using variant.h instead for this platform (Serial1)
-
-#define LED_PIN PIN_LED1 // LED1 on nrf52840-DK
-
-// If the variant filed defines as standard button
-#ifdef PIN_BUTTON1
-#define BUTTON_PIN PIN_BUTTON1
+// Nop definition for these attributes that are specific to ESP32
+#ifndef EXT_RAM_ATTR
+    #define EXT_RAM_ATTR
 #endif
-
-#ifdef PIN_BUTTON2
-#define BUTTON_PIN_ALT PIN_BUTTON2
+#ifndef IRAM_ATTR
+    #define IRAM_ATTR
 #endif
-
-#ifdef PIN_BUTTON_TOUCH
-#define BUTTON_PIN_TOUCH PIN_BUTTON_TOUCH
-#endif
-
-#else
-
-//
-// Standard definitions for ESP32 targets
-//
-
-#define HAS_WIFI
-
-#define GPS_SERIAL_NUM 1
-#define GPS_RX_PIN 34
-#ifdef USE_JTAG
-#define GPS_TX_PIN -1
-#else
-#define GPS_TX_PIN 12
-#endif
-
-// -----------------------------------------------------------------------------
-// LoRa SPI
-// -----------------------------------------------------------------------------
-
-// NRF52 boards will define this in variant.h
-#ifndef RF95_SCK
-#define RF95_SCK 5
-#define RF95_MISO 19
-#define RF95_MOSI 27
-#define RF95_NSS 18
-#endif
-
-#endif
-
-#ifndef TTGO_T_ECHO
-#define GPS_UBLOX
-#endif
-
-//
-// Standard definitions for !ESP32 targets
-//
-
-#ifdef NO_ESP32
-// Nop definition for these attributes - not used on NRF52
-#define EXT_RAM_ATTR
-#define IRAM_ATTR
-#define RTC_DATA_ATTR
+#ifndef RTC_DATA_ATTR
+    #define RTC_DATA_ATTR
 #endif
 
 // -----------------------------------------------------------------------------
@@ -190,109 +126,43 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define GPS_THREAD_INTERVAL 100
 #endif
 
-#if defined(TBEAM_V10)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_TBEAM
-
-#elif defined(TBEAM_V07)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_TBEAM0p7
-
-#elif defined(DIY_V1)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_DIY_V1
-
-#elif defined(RAK_11200)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_RAK11200
-
-#elif defined(ARDUINO_HELTEC_WIFI_LORA_32_V2)
-
-#ifdef HELTEC_V2_0
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_HELTEC_V2_0
-
-#endif
-
-#ifdef HELTEC_V2_1
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_HELTEC_V2_1
-
-#endif
-
-#elif defined(ARDUINO_HELTEC_WIFI_LORA_32)
-
-#define HW_VENDOR HardwareModel_HELTEC_V1
-
-#elif defined(TLORA_V1)
-
-#define HW_VENDOR HardwareModel_TLORA_V1
-
-#elif defined(TLORA_V2)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_TLORA_V2
-
-#elif defined(TLORA_V1_3)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_TLORA_V1_1p3
-
-#elif defined(TLORA_V2_1_16)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_TLORA_V2_1_1p6
-
-#elif defined(GENIEBLOCKS)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_GENIEBLOCKS
-
-#elif defined(PRIVATE_HW)
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_PRIVATE_HW
-
-#endif
-
-#ifdef ARDUINO_NRF52840_PCA10056
-
-// This string must exactly match the case used in release file names or the android updater won't work
-#define HW_VENDOR HardwareModel_NRF52840DK
-
-// This board uses 0 to be mean LED on
-#undef LED_INVERTED
-#define LED_INVERTED 1
-
-#elif defined(ARDUINO_NRF52840_PPR)
-
-#define HW_VENDOR HardwareModel_PPR
-
-#elif defined(RAK4630)
-
-#define HW_VENDOR HardwareModel_RAK4631
-
-#elif defined(TTGO_T_ECHO)
-
-#define HW_VENDOR HardwareModel_T_ECHO
-
-#elif defined(NANO_G1)
-
-#define HW_VENDOR HardwareModel_NANO_G1
-
-#elif defined(NORDIC_PCA10059)
-
-#define HW_VENDOR HardwareModel_NRF52840_PCA10059
-
-#elif defined(M5STACK)
-
-#define HW_VENDOR HardwareModel_M5STACK
-
-#elif NRF52_SERIES
-
-#define HW_VENDOR HardwareModel_NRF52_UNKNOWN
-
-#elif PORTDUINO
-
-#define HW_VENDOR HardwareModel_PORTDUINO
-
-#endif
-
+/* Step #1: offer chance for variant-specific defines */
 #include "variant.h"
+
+/* Step #2: follow with defines common to the architecture; 
+   also enable HAS_ option not specifically disabled by variant.h */
+#include "architecture.h"
+
+/* Step #3: mop up with disabled values for HAS_ options not handled by the above two */
+
+#ifndef HAS_WIFI
+    #define HAS_WIFI 0
+#endif
+#ifndef HAS_SCREEN
+    #define HAS_SCREEN 0
+#endif
+#ifndef HAS_WIRE
+    #define HAS_WIRE 0
+#endif
+#ifndef HAS_GPS
+    #define HAS_GPS 0
+#endif
+#ifndef HAS_BUTTON
+    #define HAS_BUTTON 0
+#endif
+#ifndef HAS_TELEMETRY
+    #define HAS_TELEMETRY 0
+#endif
+#ifndef HAS_RADIO
+    #define HAS_RADIO 0
+#endif
+#ifndef HAS_RTC
+    #define HAS_RTC 0
+#endif
+
 #include "RF95Configuration.h"
 #include "DebugConfiguration.h"
+
+#ifndef HW_VENDOR
+    #error HW_VENDOR must be defined
+#endif
diff --git a/src/debug/i2cScan.h b/src/debug/i2cScan.h
index 29d7cdc95..3d737c692 100644
--- a/src/debug/i2cScan.h
+++ b/src/debug/i2cScan.h
@@ -3,7 +3,7 @@
 #include <Wire.h>
 #include "mesh/generated/telemetry.pb.h"
 
-#ifndef NO_WIRE
+#if HAS_WIRE
 uint16_t getRegisterValue(uint8_t address, uint8_t reg, uint8_t length) {
     uint16_t value = 0x00;
     Wire.beginTransmission(address);
@@ -124,6 +124,9 @@ void scanI2Cdevice(void)
             } else if (registerValue == 0x60) {
                 DEBUG_MSG("BME-280 sensor found at address 0x%x\n", (uint8_t)addr);
                 nodeTelemetrySensorsMap[TelemetrySensorType_BME280] = addr;
+            } else {
+                DEBUG_MSG("BMP-280 sensor found at address 0x%x\n", (uint8_t)addr);
+                nodeTelemetrySensorsMap[TelemetrySensorType_BMP280] = addr;
             }
         }
         if (addr == INA_ADDR || addr == INA_ADDR_ALTERNATE) {
diff --git a/src/esp32/architecture.h b/src/esp32/architecture.h
new file mode 100644
index 000000000..dd9031d6d
--- /dev/null
+++ b/src/esp32/architecture.h
@@ -0,0 +1,103 @@
+#pragma once
+
+#define ARCH_ESP32
+
+//
+// defaults for ESP32 architecture
+//
+
+#ifndef HAS_WIFI
+    #define HAS_WIFI 1
+#endif
+#ifndef HAS_SCREEN
+    #define HAS_SCREEN 1
+#endif
+#ifndef HAS_WIRE
+    #define HAS_WIRE 1
+#endif
+#ifndef HAS_GPS
+    #define HAS_GPS 1
+#endif
+#ifndef HAS_BUTTON
+    #define HAS_BUTTON 1
+#endif
+#ifndef HAS_TELEMETRY
+    #define HAS_TELEMETRY 1
+#endif
+#ifndef HAS_RADIO
+    #define HAS_RADIO 1
+#endif
+#ifndef HAS_RTC
+    #define HAS_RTC 1
+#endif
+
+//
+// set HW_VENDOR
+//
+
+// This string must exactly match the case used in release file names or the android updater won't work
+
+#if defined(TBEAM_V10)
+    #define HW_VENDOR HardwareModel_TBEAM
+#elif defined(TBEAM_V07)
+    #define HW_VENDOR HardwareModel_TBEAM0p7
+#elif defined(DIY_V1)
+    #define HW_VENDOR HardwareModel_DIY_V1
+#elif defined(RAK_11200)
+    #define HW_VENDOR HardwareModel_RAK11200
+#elif defined(ARDUINO_HELTEC_WIFI_LORA_32_V2)
+    #ifdef HELTEC_V2_0
+        #define HW_VENDOR HardwareModel_HELTEC_V2_0
+    #endif
+    #ifdef HELTEC_V2_1
+        #define HW_VENDOR HardwareModel_HELTEC_V2_1
+    #endif
+#elif defined(ARDUINO_HELTEC_WIFI_LORA_32)
+    #define HW_VENDOR HardwareModel_HELTEC_V1
+#elif defined(TLORA_V1)
+    #define HW_VENDOR HardwareModel_TLORA_V1
+#elif defined(TLORA_V2)
+    #define HW_VENDOR HardwareModel_TLORA_V2
+#elif defined(TLORA_V1_3)
+    #define HW_VENDOR HardwareModel_TLORA_V1_1p3
+#elif defined(TLORA_V2_1_16)
+    #define HW_VENDOR HardwareModel_TLORA_V2_1_1p6
+#elif defined(GENIEBLOCKS)
+    #define HW_VENDOR HardwareModel_GENIEBLOCKS
+#elif defined(PRIVATE_HW)
+    #define HW_VENDOR HardwareModel_PRIVATE_HW
+#elif defined(NANO_G1)
+    #define HW_VENDOR HardwareModel_NANO_G1
+#elif defined(M5STACK)
+    #define HW_VENDOR HardwareModel_M5STACK
+#endif
+
+//
+// Standard definitions for ESP32 targets
+//
+
+#define GPS_SERIAL_NUM 1
+#ifndef GPS_RX_PIN
+#define GPS_RX_PIN 34
+#endif
+#ifndef GPS_TX_PIN
+#ifdef USE_JTAG
+#define GPS_TX_PIN -1
+#else
+#define GPS_TX_PIN 12
+#endif
+#endif
+
+// -----------------------------------------------------------------------------
+// LoRa SPI
+// -----------------------------------------------------------------------------
+
+// NRF52 boards will define this in variant.h
+#ifndef RF95_SCK
+#define RF95_SCK 5
+#define RF95_MISO 19
+#define RF95_MOSI 27
+#define RF95_NSS 18
+#endif
+
+#define SERIAL0_RX_GPIO 3 // Always GPIO3 on ESP32
diff --git a/src/gps/GPS.cpp b/src/gps/GPS.cpp
index 0536e5a11..b0a8164d0 100644
--- a/src/gps/GPS.cpp
+++ b/src/gps/GPS.cpp
@@ -65,12 +65,12 @@ bool GPS::setupGPS()
         didSerialInit = true;
 
 // ESP32 has a special set of parameters vs other arduino ports
-#if defined(GPS_RX_PIN) && !defined(NO_ESP32)
+#if defined(GPS_RX_PIN) && defined(ARCH_ESP32)
         _serial_gps->begin(GPS_BAUDRATE, SERIAL_8N1, GPS_RX_PIN, GPS_TX_PIN);
 #else
         _serial_gps->begin(GPS_BAUDRATE);
 #endif
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
         _serial_gps->setRxBufferSize(2048); // the default is 256
 #endif
 #ifdef TTGO_T_ECHO
@@ -432,14 +432,14 @@ int GPS::prepareDeepSleep(void *unused)
     return 0;
 }
 
-#ifndef NO_GPS
+#if HAS_GPS
 #include "NMEAGPS.h"
 #endif
 
 GPS *createGps()
 {
 
-#ifdef NO_GPS
+#if !HAS_GPS
     return nullptr;
 #else
     if (!config.position.gps_disabled) {
diff --git a/src/gps/RTC.cpp b/src/gps/RTC.cpp
index 04e7043e5..148782cd7 100644
--- a/src/gps/RTC.cpp
+++ b/src/gps/RTC.cpp
@@ -115,12 +115,12 @@ bool perhapsSetRTC(RTCQuality q, const struct timeval *tv)
             rtc.setDateTime(t->tm_year + 1900, t->tm_mon + 1, t->tm_wday, t->tm_hour, t->tm_min, t->tm_sec);
             DEBUG_MSG("PCF8563_RTC setDateTime %02d-%02d-%02d %02d:%02d:%02d %ld\n", t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec, tv->tv_sec);
         }
-#elif !defined(NO_ESP32)
+#elif defined(ARCH_ESP32)
         settimeofday(tv, NULL);
 #endif
 
         // nrf52 doesn't have a readable RTC (yet - software not written)
-#if defined(PORTDUINO) || !defined(NO_ESP32) || defined(RV3028_RTC) || defined(PCF8563_RTC)
+#ifdef HAS_RTC
         readFromRTC();
 #endif
 
diff --git a/src/graphics/EInkDisplay2.cpp b/src/graphics/EInkDisplay2.cpp
index ad3488545..9062fc018 100644
--- a/src/graphics/EInkDisplay2.cpp
+++ b/src/graphics/EInkDisplay2.cpp
@@ -1,6 +1,6 @@
 #include "configuration.h"
 
-#ifdef HAS_EINK
+#ifdef USE_EINK
 #include "main.h"
 #include "EInkDisplay2.h"
 #include "SPILock.h"
diff --git a/src/graphics/Screen.cpp b/src/graphics/Screen.cpp
index b8eb79178..fc447dc71 100644
--- a/src/graphics/Screen.cpp
+++ b/src/graphics/Screen.cpp
@@ -20,7 +20,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 #include "configuration.h"
-#ifndef NO_SCREEN
+#if HAS_SCREEN
 #include <OLEDDisplay.h>
 
 #include "GPS.h"
@@ -39,7 +39,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "target_specific.h"
 #include "utils.h"
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "esp_task_wdt.h"
 #include "mesh/http/WiFiAPClient.h"
 #endif
@@ -94,7 +94,7 @@ static uint16_t displayWidth, displayHeight;
 #define SCREEN_WIDTH displayWidth
 #define SCREEN_HEIGHT displayHeight
 
-#if defined(HAS_EINK) || defined(ILI9341_DRIVER)
+#if defined(USE_EINK) || defined(ILI9341_DRIVER)
 // The screen is bigger so use bigger fonts
 #define FONT_SMALL ArialMT_Plain_16
 #define FONT_MEDIUM ArialMT_Plain_24
@@ -212,7 +212,7 @@ static void drawSSLScreen(OLEDDisplay *display, OLEDDisplayUiState *state, int16
     display->setFont(FONT_SMALL);
     display->drawString(64 + x, y, "Creating SSL certificate");
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     yield();
     esp_task_wdt_reset();
 #endif
@@ -253,13 +253,13 @@ static void drawWelcomeScreen(OLEDDisplay *display, OLEDDisplayUiState *state, i
         display->drawString(x, y + FONT_HEIGHT_SMALL * 4 - 3, "");
     }
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     yield();
     esp_task_wdt_reset();
 #endif
 }
 
-#ifdef HAS_EINK
+#ifdef USE_EINK
 /// Used on eink displays while in deep sleep
 static void drawSleepScreen(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
 {
@@ -843,7 +843,7 @@ Screen::Screen(uint8_t address, int sda, int scl) : OSThread("Screen"), cmdQueue
  */
 void Screen::doDeepSleep()
 {
-#ifdef HAS_EINK
+#ifdef USE_EINK
     static FrameCallback sleepFrames[] = {drawSleepScreen};
     static const int sleepFrameCount = sizeof(sleepFrames) / sizeof(sleepFrames[0]);
     ui.setFrames(sleepFrames, sleepFrameCount);
@@ -954,7 +954,7 @@ void Screen::setup()
 void Screen::forceDisplay()
 {
     // Nasty hack to force epaper updates for 'key' frames.  FIXME, cleanup.
-#ifdef HAS_EINK
+#ifdef USE_EINK
     dispdev.forceDisplay();
 #endif
 }
@@ -1055,7 +1055,7 @@ int32_t Screen::runOnce()
         DEBUG_MSG("Setting idle framerate\n");
         targetFramerate = IDLE_FRAMERATE;
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
         setCPUFast(false); // Turn up the CPU to improve screen animations
 #endif
 
@@ -1180,7 +1180,7 @@ void Screen::setFrames()
     // call a method on debugInfoScreen object (for more details)
     normalFrames[numframes++] = &Screen::drawDebugInfoSettingsTrampoline;
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     if (isWifiAvailable()) {
         // call a method on debugInfoScreen object (for more details)
         normalFrames[numframes++] = &Screen::drawDebugInfoWiFiTrampoline;
@@ -1287,7 +1287,7 @@ void Screen::setFastFramerate()
     // We are about to start a transition so speed up fps
     targetFramerate = SCREEN_TRANSITION_FRAMERATE;
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     setCPUFast(true); // Turn up the CPU to improve screen animations
 #endif
 
@@ -1342,7 +1342,7 @@ void DebugInfo::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
 // Jm
 void DebugInfo::drawFrameWiFi(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
 {
-#ifdef HAS_WIFI
+#if HAS_WIFI
     const char *wifiName = config.wifi.ssid;
     const char *wifiPsw = config.wifi.psk;
 
@@ -1665,4 +1665,4 @@ int Screen::handleUIFrameEvent(const UIFrameEvent *event)
 }
 
 } // namespace graphics
-#endif // NO_SCREEN
\ No newline at end of file
+#endif // HAS_SCREEN
\ No newline at end of file
diff --git a/src/graphics/Screen.h b/src/graphics/Screen.h
index 0073e034b..b8d3f6f58 100644
--- a/src/graphics/Screen.h
+++ b/src/graphics/Screen.h
@@ -1,6 +1,8 @@
 #pragma once
 
-#ifdef NO_SCREEN
+#include "configuration.h"
+
+#if !HAS_SCREEN
 #include "power.h"
 namespace graphics
 {
@@ -315,7 +317,7 @@ class Screen : public concurrency::OSThread
     SSD1306Wire dispdev;
 #elif defined(ST7735_CS) || defined(ILI9341_DRIVER)
     TFTDisplay dispdev;
-#elif defined(HAS_EINK)
+#elif defined(USE_EINK)
     EInkDisplay dispdev;
 #elif defined(USE_ST7567)
     ST7567Wire dispdev;
diff --git a/src/main.cpp b/src/main.cpp
index 88742aef3..66c4021c1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -31,7 +31,7 @@
 
 #include "mesh/http/WiFiAPClient.h"
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "mesh/http/WebServer.h"
 
 #ifdef USE_NEW_ESP32_BLUETOOTH
@@ -42,7 +42,7 @@
 
 #endif
 
-#if defined(HAS_WIFI) || defined(PORTDUINO)
+#if HAS_WIFI
 #include "mesh/wifi/WiFiServerAPI.h"
 #include "mqtt/MQTT.h"
 #endif
@@ -52,7 +52,9 @@
 #include "SX1262Interface.h"
 #include "SX1268Interface.h"
 
+#if HAS_BUTTON
 #include "ButtonThread.h"
+#endif
 #include "PowerFSMThread.h"
 
 using namespace concurrency;
@@ -91,7 +93,7 @@ uint32_t serialSinceMsec;
 bool axp192_found;
 
 // Array map of sensor types (as array index) and i2c address as value we'll find in the i2c scan
-uint8_t nodeTelemetrySensorsMap[6] = { 0, 0, 0, 0, 0, 0 };
+uint8_t nodeTelemetrySensorsMap[7] = { 0, 0, 0, 0, 0, 0, 0 };
 
 Router *router = NULL; // Users of router don't care what sort of subclass implements that API
 
@@ -126,11 +128,15 @@ static int32_t ledBlinker()
 
 uint32_t timeLastPowered = 0;
 
+#if HAS_BUTTON
 bool ButtonThread::shutdown_on_long_stop = false;
+#endif
 
 static Periodic *ledPeriodic;
 static OSThread *powerFSMthread, *buttonThread;
+#if HAS_BUTTON
 uint32_t ButtonThread::longPressTime = 0;
+#endif
 
 RadioInterface *rIf = NULL;
 
@@ -187,7 +193,7 @@ void setup()
     bool forceSoftAP = 0;
 
 #ifdef BUTTON_PIN
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     // If the button is connected to GPIO 12, don't enable the ability to use
     // meshtasticAdmin on the device.
@@ -218,7 +224,7 @@ void setup()
 
 #ifdef I2C_SDA
     Wire.begin(I2C_SDA, I2C_SCL);
-#elif !defined(NO_WIRE)
+#elif HAS_WIRE
     Wire.begin();
 #endif
 
@@ -236,8 +242,10 @@ void setup()
     // scanEInkDevice();
 #endif
 
+#if HAS_BUTTON
     // Buttons & LED
     buttonThread = new ButtonThread();
+#endif
 
 #ifdef LED_PIN
     pinMode(LED_PIN, OUTPUT);
@@ -247,7 +255,7 @@ void setup()
     // Hello
     DEBUG_MSG("Meshtastic hwvendor=%d, swver=%s\n", HW_VENDOR, optstr(APP_VERSION));
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     // Don't init display if we don't have one or we are waking headless due to a timer event
     if (wakeCause == ESP_SLEEP_WAKEUP_TIMER)
         screen_found = 0; // forget we even have the hardware
@@ -255,7 +263,7 @@ void setup()
     esp32Setup();
 #endif
 
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
     nrf52Setup();
 #endif
     playStartMelody();
@@ -271,7 +279,7 @@ void setup()
 
     // Init our SPI controller (must be before screen and lora)
     initSPI();
-#ifdef NO_ESP32
+#ifndef ARCH_ESP32
     SPI.begin();
 #else
     // ESP32
@@ -306,7 +314,7 @@ void setup()
 
         // Don't call screen setup until after nodedb is setup (because we need
         // the current region name)
-#if defined(ST7735_CS) || defined(HAS_EINK) || defined(ILI9341_DRIVER)
+#if defined(ST7735_CS) || defined(USE_EINK) || defined(ILI9341_DRIVER)
     screen->setup();
 #else
     if (screen_found)
@@ -386,7 +394,7 @@ void setup()
     }
 #endif
 
-#ifdef USE_SIM_RADIO
+#if !HAS_RADIO
     if (!rIf) {
         rIf = new SimRadio;
         if (!rIf->init()) {
@@ -399,19 +407,19 @@ void setup()
     }
 #endif
 
-#if defined(PORTDUINO) || defined(HAS_WIFI)
+#if HAS_WIFI
     mqttInit();
 #endif
 
     // Initialize Wifi
     initWifi(forceSoftAP);
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     // Start web server thread.
     webServerThread = new WebServerThread();
 #endif
 
-#ifdef PORTDUINO
+#ifdef ARCH_PORTDUINO
     initApiServer();
 #endif
 
@@ -452,10 +460,10 @@ void loop()
 
     // heap_caps_check_integrity_all(true); // FIXME - disable this expensive check
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     esp32Loop();
 #endif
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
     nrf52Loop();
 #endif
     powerCommandsCheck();
diff --git a/src/main.h b/src/main.h
index b9ae581ac..02dce04b3 100644
--- a/src/main.h
+++ b/src/main.h
@@ -19,7 +19,7 @@ extern bool axp192_found;
 extern bool isCharging;
 extern bool isUSBPowered;
 
-extern uint8_t nodeTelemetrySensorsMap[6];
+extern uint8_t nodeTelemetrySensorsMap[7];
 
 // Global Screen singleton.
 extern graphics::Screen *screen;
diff --git a/src/mesh/FloodingRouter.cpp b/src/mesh/FloodingRouter.cpp
index e01863de1..5e3126f77 100644
--- a/src/mesh/FloodingRouter.cpp
+++ b/src/mesh/FloodingRouter.cpp
@@ -29,8 +29,12 @@ bool FloodingRouter::shouldFilterReceived(MeshPacket *p)
 
 void FloodingRouter::sniffReceived(const MeshPacket *p, const Routing *c)
 {
-
-    if ((p->to == NODENUM_BROADCAST) && (p->hop_limit > 0) && (getFrom(p) != getNodeNum())) {
+    PacketId ackId = ((c && c->error_reason == Routing_Error_NONE) || !c) ? p->decoded.request_id : 0;
+    if (ackId && p->to != getNodeNum()) {
+        // do not flood direct message that is ACKed 
+        DEBUG_MSG("Receiving an ACK not for me, but don't need to rebroadcast this direct message anymore.\n");
+        Router::cancelSending(p->to, p->decoded.request_id);   // cancel rebroadcast for this DM
+    } else if ((p->to != getNodeNum()) && (p->hop_limit > 0) && (getFrom(p) != getNodeNum())) {
         if (p->id != 0) {
             if (config.device.role != Config_DeviceConfig_Role_ClientMute) {
                 MeshPacket *tosend = packetPool.allocCopy(*p); // keep a copy because we will be sending it
diff --git a/src/mesh/MeshModule.h b/src/mesh/MeshModule.h
index cfc715497..c6f10f138 100644
--- a/src/mesh/MeshModule.h
+++ b/src/mesh/MeshModule.h
@@ -4,7 +4,7 @@
 #include "mesh/MeshTypes.h"
 #include <vector>
 
-#ifndef NO_SCREEN
+#if HAS_SCREEN
 #include <OLEDDisplay.h>
 #include <OLEDDisplayUi.h>
 #endif
@@ -72,7 +72,7 @@ class MeshModule
     static void observeUIEvents(Observer<const UIFrameEvent *> *observer);
     static AdminMessageHandleResult handleAdminMessageForAllPlugins(
         const MeshPacket &mp, AdminMessage *request, AdminMessage *response);
-#ifndef NO_SCREEN
+#if HAS_SCREEN
     virtual void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y) { return; }
 #endif
   protected:
diff --git a/src/mesh/NodeDB.cpp b/src/mesh/NodeDB.cpp
index e1779b2f7..63d67871e 100644
--- a/src/mesh/NodeDB.cpp
+++ b/src/mesh/NodeDB.cpp
@@ -17,14 +17,14 @@
 #include <pb_decode.h>
 #include <pb_encode.h>
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "mesh/http/WiFiAPClient.h"
 #include "modules/esp32/StoreForwardModule.h"
 #include <Preferences.h>
 #include <nvs_flash.h>
 #endif
 
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
 #include <bluefruit.h>
 #include <utility/bonding.h>
 #endif
@@ -132,11 +132,11 @@ bool NodeDB::factoryReset()
     installDefaultDeviceState();
     // third, write to disk
     saveToDisk();
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     // This will erase what's in NVS including ssl keys, persistant variables and ble pairing
     nvs_flash_erase();
 #endif
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
     Bluefruit.begin();
     DEBUG_MSG("Clearing bluetooth bonds!\n");
     bond_print_list(BLE_GAP_ROLE_PERIPH);
@@ -248,7 +248,7 @@ void NodeDB::init()
 
     strncpy(myNodeInfo.firmware_version, optstr(APP_VERSION), sizeof(myNodeInfo.firmware_version));
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     Preferences preferences;
     preferences.begin("meshtastic", false);
     myNodeInfo.reboot_count = preferences.getUInt("rebootCounter", 0);
@@ -339,11 +339,11 @@ void NodeDB::loadFromDisk()
         if (devicestate.version < DEVICESTATE_MIN_VER) {
             DEBUG_MSG("Warn: devicestate %d is old, discarding\n", devicestate.version);
             installDefaultDeviceState();
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
             // This will erase what's in NVS including ssl keys, persistant variables and ble pairing
             nvs_flash_erase();
 #endif
-#ifdef NRF52_SERIES
+#ifdef ARCH_NRF52
             Bluefruit.begin();
             DEBUG_MSG("Clearing bluetooth bonds!\n");
             bond_print_list(BLE_GAP_ROLE_PERIPH);
@@ -669,7 +669,7 @@ void recordCriticalError(CriticalErrorCode code, uint32_t address, const char *f
     myNodeInfo.error_count++;
 
     // Currently portuino is mostly used for simulation.  Make sue the user notices something really bad happend
-#ifdef PORTDUINO
+#ifdef ARCH_PORTDUINO
     DEBUG_MSG("A critical failure occurred, portduino is exiting...");
     exit(2);
 #endif
diff --git a/src/mesh/RadioLibInterface.cpp b/src/mesh/RadioLibInterface.cpp
index a7cadf2ad..633a8dd56 100644
--- a/src/mesh/RadioLibInterface.cpp
+++ b/src/mesh/RadioLibInterface.cpp
@@ -11,7 +11,7 @@
 // FIXME, we default to 4MHz SPI, SPI mode 0, check if the datasheet says it can really do that
 static SPISettings spiSettings(4000000, MSBFIRST, SPI_MODE0);
 
-#ifdef PORTDUINO
+#ifdef ARCH_PORTDUINO
 
 void LockingModule::SPItransfer(uint8_t cmd, uint8_t reg, uint8_t *dataOut, uint8_t *dataIn, uint8_t numBytes)
 {
@@ -45,7 +45,7 @@ RadioLibInterface::RadioLibInterface(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq
     instance = this;
 }
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 // ESP32 doesn't use that flag
 #define YIELD_FROM_ISR(x) portYIELD_FROM_ISR()
 #else
@@ -96,7 +96,7 @@ bool RadioLibInterface::canSendImmediately()
         if (busyTx && (millis() - lastTxStart > 60000)) {
             DEBUG_MSG("Hardware Failure! busyTx for more than 60s\n");
             RECORD_CRITICALERROR(CriticalErrorCode_TransmitFailed);
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
             if (busyTx && (millis() - lastTxStart > 65000)) // After 5s more, reboot
                 ESP.restart();
 #endif
diff --git a/src/mesh/RadioLibInterface.h b/src/mesh/RadioLibInterface.h
index 08aa84811..fbad830cd 100644
--- a/src/mesh/RadioLibInterface.h
+++ b/src/mesh/RadioLibInterface.h
@@ -41,7 +41,7 @@ class LockingModule : public Module
     {
     }
     
-#ifdef PORTDUINO
+#ifdef ARCH_PORTDUINO
     void SPItransfer(uint8_t cmd, uint8_t reg, uint8_t *dataOut, uint8_t *dataIn, uint8_t numBytes) override;
 #else
     void SPIbeginTransaction() override;
diff --git a/src/mesh/ReliableRouter.cpp b/src/mesh/ReliableRouter.cpp
index a23adfa7d..9a65823ec 100644
--- a/src/mesh/ReliableRouter.cpp
+++ b/src/mesh/ReliableRouter.cpp
@@ -16,7 +16,7 @@ ErrorCode ReliableRouter::send(MeshPacket *p)
         // If someone asks for acks on broadcast, we need the hop limit to be at least one, so that first node that receives our
         // message will rebroadcast.  But asking for hop_limit 0 in that context means the client app has no preference on hop
         // counts and we want this message to get through the whole mesh, so use the default.
-        if (p->to == NODENUM_BROADCAST && p->hop_limit == 0) {
+        if (p->hop_limit == 0) {
             if (config.lora.hop_limit && config.lora.hop_limit <= HOP_MAX) {
                 p->hop_limit = (config.lora.hop_limit >= HOP_MAX) ? HOP_MAX : config.lora.hop_limit;
             } else {
@@ -34,7 +34,7 @@ ErrorCode ReliableRouter::send(MeshPacket *p)
 bool ReliableRouter::shouldFilterReceived(MeshPacket *p)
 {
     // Note: do not use getFrom() here, because we want to ignore messages sent from phone
-    if (p->to == NODENUM_BROADCAST && p->from == getNodeNum()) {
+    if (p->from == getNodeNum()) {
         printPacket("Rx someone rebroadcasting for us", p);
 
         // We are seeing someone rebroadcast one of our broadcast attempts.
@@ -231,4 +231,4 @@ void ReliableRouter::setNextTx(PendingPacket *pending)
     DEBUG_MSG("Setting next retransmission in %u msecs: ", d);
     printPacket("", pending->packet);
     setReceivedMessage(); // Run ASAP, so we can figure out our correct sleep time
-}
\ No newline at end of file
+}
diff --git a/src/mesh/Router.cpp b/src/mesh/Router.cpp
index d7dd7afcb..f926c5c69 100644
--- a/src/mesh/Router.cpp
+++ b/src/mesh/Router.cpp
@@ -11,7 +11,7 @@ extern "C" {
 #include "mesh/compression/unishox2.h"
 }
 
-#if defined(HAS_WIFI) || defined(PORTDUINO)
+#if HAS_WIFI
 #include "mqtt/MQTT.h"
 #endif
 
@@ -213,7 +213,7 @@ ErrorCode Router::send(MeshPacket *p)
     if (p->which_payloadVariant == MeshPacket_decoded_tag) {
         ChannelIndex chIndex = p->channel; // keep as a local because we are about to change it
 
-#if defined(HAS_WIFI) || defined(PORTDUINO)
+#if HAS_WIFI
         // check if we should send decrypted packets to mqtt
 
         // truth table:
@@ -244,7 +244,7 @@ ErrorCode Router::send(MeshPacket *p)
             return encodeResult; // FIXME - this isn't a valid ErrorCode
         }
 
-#if defined(HAS_WIFI) || defined(PORTDUINO)
+#if HAS_WIFI
         // the packet is now encrypted.
         // check if we should send encrypted packets to mqtt
         if (mqtt && shouldActuallyEncrypt)
diff --git a/src/mesh/generated/telemetry.pb.h b/src/mesh/generated/telemetry.pb.h
index d77c9ae49..9a75230dd 100644
--- a/src/mesh/generated/telemetry.pb.h
+++ b/src/mesh/generated/telemetry.pb.h
@@ -23,7 +23,9 @@ typedef enum _TelemetrySensorType {
     /* Moderate accuracy current and voltage */
     TelemetrySensorType_INA260 = 4, 
     /* Moderate accuracy current and voltage */
-    TelemetrySensorType_INA219 = 5 
+    TelemetrySensorType_INA219 = 5, 
+    /* High accuracy temperature and pressure */
+    TelemetrySensorType_BMP280 = 6 
 } TelemetrySensorType;
 
 /* Struct definitions */
@@ -75,8 +77,8 @@ typedef struct _Telemetry {
 
 /* Helper constants for enums */
 #define _TelemetrySensorType_MIN TelemetrySensorType_NotSet
-#define _TelemetrySensorType_MAX TelemetrySensorType_INA219
-#define _TelemetrySensorType_ARRAYSIZE ((TelemetrySensorType)(TelemetrySensorType_INA219+1))
+#define _TelemetrySensorType_MAX TelemetrySensorType_BMP280
+#define _TelemetrySensorType_ARRAYSIZE ((TelemetrySensorType)(TelemetrySensorType_BMP280+1))
 
 
 #ifdef __cplusplus
diff --git a/src/mesh/http/ContentHandler.cpp b/src/mesh/http/ContentHandler.cpp
index bf6c79742..ea39775a5 100644
--- a/src/mesh/http/ContentHandler.cpp
+++ b/src/mesh/http/ContentHandler.cpp
@@ -14,7 +14,7 @@
 #include <HTTPURLEncodedBodyParser.hpp>
 #include <json11.hpp>
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "esp_task_wdt.h"
 #endif
 
@@ -787,7 +787,7 @@ void handleBlinkLED(HTTPRequest *req, HTTPResponse *res)
             count = count - 1;
         }
     } else {
-#ifndef NO_SCREEN
+#if HAS_SCREEN
         screen->blink();
 #endif
     }
diff --git a/src/mesh/http/WebServer.cpp b/src/mesh/http/WebServer.cpp
index 271adc6c2..48e084ed2 100644
--- a/src/mesh/http/WebServer.cpp
+++ b/src/mesh/http/WebServer.cpp
@@ -11,7 +11,7 @@
 #include <WebServer.h>
 #include <WiFi.h>
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "esp_task_wdt.h"
 #endif
 
@@ -152,7 +152,7 @@ void createSSLCert()
 
                     yield();
                     esp_task_wdt_reset();
-#ifndef NO_SCREEN
+#if HAS_SCREEN
                     if (millis() / 1000 >= 3) {
                         screen->setSSLFrames();
                     }
diff --git a/src/mesh/http/WiFiAPClient.h b/src/mesh/http/WiFiAPClient.h
index fa9be8feb..2c6bc912c 100644
--- a/src/mesh/http/WiFiAPClient.h
+++ b/src/mesh/http/WiFiAPClient.h
@@ -4,7 +4,7 @@
 #include <Arduino.h>
 #include <functional>
 
-#ifdef HAS_WIFI
+#ifdef ARCH_ESP32
 #include <DNSServer.h>
 #include <WiFi.h>
 #endif
diff --git a/src/mesh/mesh-pb-constants.cpp b/src/mesh/mesh-pb-constants.cpp
index 5e901c799..6b9fc4986 100644
--- a/src/mesh/mesh-pb-constants.cpp
+++ b/src/mesh/mesh-pb-constants.cpp
@@ -32,6 +32,7 @@ bool pb_decode_from_bytes(const uint8_t *srcbuf, size_t srcbufsize, const pb_msg
     }
 }
 
+#ifdef FSCom
 /// Read from an Arduino File
 bool readcb(pb_istream_t *stream, uint8_t *buf, size_t count)
 {
@@ -59,6 +60,7 @@ bool writecb(pb_ostream_t *stream, const uint8_t *buf, size_t count)
     // DEBUG_MSG("writing %d bytes to protobuf file\n", count);
     return file->write(buf, count) == count;
 }
+#endif
 
 bool is_in_helper(uint32_t n, const uint32_t *array, pb_size_t count)
 {
diff --git a/src/modules/AdminModule.cpp b/src/modules/AdminModule.cpp
index 6d25fd367..f969d5506 100644
--- a/src/modules/AdminModule.cpp
+++ b/src/modules/AdminModule.cpp
@@ -6,7 +6,7 @@
 #include "configuration.h"
 #include "main.h"
 
-#ifdef PORTDUINO
+#ifdef ARCH_PORTDUINO
 #include "unistd.h"
 #endif
 
@@ -110,7 +110,7 @@ bool AdminModule::handleReceivedProtobuf(const MeshPacket &mp, AdminMessage *r)
         break;
     }
 
-#ifdef PORTDUINO
+#ifdef ARCH_PORTDUINO
     case AdminMessage_exit_simulator_tag:
         DEBUG_MSG("Exiting simulator\n");
         _exit(0);
diff --git a/src/modules/CannedMessageModule.cpp b/src/modules/CannedMessageModule.cpp
index 6d7064c25..6959093e0 100644
--- a/src/modules/CannedMessageModule.cpp
+++ b/src/modules/CannedMessageModule.cpp
@@ -1,5 +1,5 @@
 #include "configuration.h"
-#ifndef NO_SCREEN
+#if HAS_SCREEN
 #include "CannedMessageModule.h"
 #include "FSCommon.h"
 #include "MeshService.h"
diff --git a/src/modules/CannedMessageModule.h b/src/modules/CannedMessageModule.h
index f393882d5..f703ba516 100644
--- a/src/modules/CannedMessageModule.h
+++ b/src/modules/CannedMessageModule.h
@@ -1,6 +1,5 @@
 #pragma once
-#ifdef NO_SCREEN
-#else
+#if HAS_SCREEN
 #include "ProtobufModule.h"
 #include "input/InputBroker.h"
 
diff --git a/src/modules/ExternalNotificationModule.cpp b/src/modules/ExternalNotificationModule.cpp
index b9e946823..a49ba6f39 100644
--- a/src/modules/ExternalNotificationModule.cpp
+++ b/src/modules/ExternalNotificationModule.cpp
@@ -116,7 +116,7 @@ ExternalNotificationModule::ExternalNotificationModule()
     // restrict to the admin channel for rx
     boundChannel = Channels::gpioChannel;
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #ifdef EXT_NOTIFY_OUT
 
     /*
@@ -154,7 +154,7 @@ ExternalNotificationModule::ExternalNotificationModule()
 
 ProcessMessage ExternalNotificationModule::handleReceived(const MeshPacket &mp)
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #ifdef EXT_NOTIFY_OUT
 
     if (moduleConfig.external_notification.enabled) {
diff --git a/src/modules/Modules.cpp b/src/modules/Modules.cpp
index 2d308ca43..8fc7964ea 100644
--- a/src/modules/Modules.cpp
+++ b/src/modules/Modules.cpp
@@ -14,10 +14,10 @@
 #include "modules/RoutingModule.h"
 #include "modules/TextMessageModule.h"
 #include "modules/Telemetry/DeviceTelemetry.h"
-#ifndef PORTDUINO
+#if HAS_TELEMETRY
 #include "modules/Telemetry/EnvironmentTelemetry.h"
 #endif
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "modules/esp32/RangeTestModule.h"
 #include "modules/esp32/SerialModule.h"
 #include "modules/esp32/StoreForwardModule.h"
@@ -28,7 +28,9 @@
  */
 void setupModules()
 {
+#if HAS_BUTTON
     inputBroker = new InputBroker();
+#endif
     adminModule = new AdminModule();
     nodeInfoModule = new NodeInfoModule();
     positionModule = new PositionModule();
@@ -39,6 +41,7 @@ void setupModules()
 
     new RemoteHardwareModule();
     new ReplyModule();
+#if HAS_BUTTON
     rotaryEncoderInterruptImpl1 = new RotaryEncoderInterruptImpl1();
     rotaryEncoderInterruptImpl1->init();
     upDownInterruptImpl1 = new UpDownInterruptImpl1();
@@ -47,14 +50,15 @@ void setupModules()
     cardKbI2cImpl->init();
     facesKbI2cImpl = new FacesKbI2cImpl();
     facesKbI2cImpl->init();
-#ifndef NO_SCREEN    
+#endif
+#if HAS_SCREEN
     cannedMessageModule = new CannedMessageModule();
 #endif
-#ifndef PORTDUINO
+#if HAS_TELEMETRY
     new DeviceTelemetryModule();
     new EnvironmentTelemetryModule();
 #endif
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     // Only run on an esp32 based device.
 
     /*
diff --git a/src/modules/Telemetry/DeviceTelemetry.cpp b/src/modules/Telemetry/DeviceTelemetry.cpp
index b58441bf7..868f68d34 100644
--- a/src/modules/Telemetry/DeviceTelemetry.cpp
+++ b/src/modules/Telemetry/DeviceTelemetry.cpp
@@ -12,7 +12,7 @@
 
 int32_t DeviceTelemetryModule::runOnce()
 {
-#ifndef PORTDUINO
+#ifndef ARCH_PORTDUINO
     if (firstTime) {
         // This is the first time the OSThread library has called this function, so do some setup
         firstTime = 0;
@@ -72,7 +72,7 @@ bool DeviceTelemetryModule::sendOurTelemetry(NodeNum dest, bool wantReplies)
 
     lastMeasurementPacket = packetPool.allocCopy(*p);
     DEBUG_MSG("Device Telemetry: Sending packet to mesh\n");
-    service.sendToMesh(p);
+    service.sendToMesh(p, RX_SRC_LOCAL, true);
     nodeDB.updateTelemetry(nodeDB.getNodeNum(), t, RX_SRC_LOCAL);
     return true;
 }
diff --git a/src/modules/Telemetry/EnvironmentTelemetry.cpp b/src/modules/Telemetry/EnvironmentTelemetry.cpp
index 1fcc94723..14d9c2243 100644
--- a/src/modules/Telemetry/EnvironmentTelemetry.cpp
+++ b/src/modules/Telemetry/EnvironmentTelemetry.cpp
@@ -11,12 +11,14 @@
 #include <OLEDDisplayUi.h>
 
 // Sensors
+#include "Sensor/BMP280Sensor.h"
 #include "Sensor/BME280Sensor.h"
 #include "Sensor/BME680Sensor.h"
 #include "Sensor/MCP9808Sensor.h"
 #include "Sensor/INA260Sensor.h"
 #include "Sensor/INA219Sensor.h"
 
+BMP280Sensor bmp280Sensor;
 BME280Sensor bme280Sensor;
 BME680Sensor bme680Sensor;
 MCP9808Sensor mcp9808Sensor;
@@ -26,7 +28,7 @@ INA219Sensor ina219Sensor;
 #define FAILED_STATE_SENSOR_READ_MULTIPLIER 10
 #define DISPLAY_RECEIVEID_MEASUREMENTS_ON_SCREEN true
 
-#ifdef HAS_EINK
+#ifdef USE_EINK
 // The screen is bigger so use bigger fonts
 #define FONT_SMALL ArialMT_Plain_16
 #define FONT_MEDIUM ArialMT_Plain_24
@@ -44,7 +46,7 @@ INA219Sensor ina219Sensor;
 
 int32_t EnvironmentTelemetryModule::runOnce()
 {
-#ifndef PORTDUINO
+#ifndef ARCH_PORTDUINO
     int32_t result = INT32_MAX;
     /*
         Uncomment the preferences below if you want to use the module
@@ -69,10 +71,12 @@ int32_t EnvironmentTelemetryModule::runOnce()
             DEBUG_MSG("Environment Telemetry: Initializing\n");
             // it's possible to have this module enabled, only for displaying values on the screen.
             // therefore, we should only enable the sensor loop if measurement is also enabled
-            if (bme680Sensor.hasSensor()) 
-                result = bme680Sensor.runOnce();
+            if (bmp280Sensor.hasSensor()) 
+                result = bmp280Sensor.runOnce();
             if (bme280Sensor.hasSensor()) 
                 result = bme280Sensor.runOnce();
+            if (bme680Sensor.hasSensor()) 
+                result = bme680Sensor.runOnce();
             if (mcp9808Sensor.hasSensor()) 
                 result = mcp9808Sensor.runOnce();
             if (ina260Sensor.hasSensor()) 
@@ -196,6 +200,8 @@ bool EnvironmentTelemetryModule::sendOurTelemetry(NodeNum dest, bool wantReplies
     DEBUG_MSG("-----------------------------------------\n");
     DEBUG_MSG("Environment Telemetry: Read data\n");
 
+    if (bmp280Sensor.hasSensor())
+        bmp280Sensor.getMetrics(&m);
     if (bme280Sensor.hasSensor())
         bme280Sensor.getMetrics(&m);
     if (bme680Sensor.hasSensor())
@@ -223,6 +229,6 @@ bool EnvironmentTelemetryModule::sendOurTelemetry(NodeNum dest, bool wantReplies
 
     lastMeasurementPacket = packetPool.allocCopy(*p);
     DEBUG_MSG("Environment Telemetry: Sending packet to mesh");
-    service.sendToMesh(p);
+    service.sendToMesh(p, RX_SRC_LOCAL, true);
     return true;
 }
diff --git a/src/modules/Telemetry/EnvironmentTelemetry.h b/src/modules/Telemetry/EnvironmentTelemetry.h
index e6e526e3f..e1a612288 100644
--- a/src/modules/Telemetry/EnvironmentTelemetry.h
+++ b/src/modules/Telemetry/EnvironmentTelemetry.h
@@ -15,7 +15,7 @@ class EnvironmentTelemetryModule : private concurrency::OSThread, public Protobu
         lastMeasurementPacket = nullptr;
     }
     virtual bool wantUIFrame() override;
-#ifdef NO_SCREEN
+#if !HAS_SCREEN
     void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y);
 #else
     virtual void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y) override;
diff --git a/src/modules/Telemetry/Sensor/BMP280Sensor.cpp b/src/modules/Telemetry/Sensor/BMP280Sensor.cpp
new file mode 100644
index 000000000..1a41f9236
--- /dev/null
+++ b/src/modules/Telemetry/Sensor/BMP280Sensor.cpp
@@ -0,0 +1,30 @@
+#include "../mesh/generated/telemetry.pb.h"
+#include "configuration.h"
+#include "TelemetrySensor.h"
+#include "BMP280Sensor.h"
+#include <Adafruit_BMP280.h>
+#include <typeinfo>
+
+BMP280Sensor::BMP280Sensor() : 
+    TelemetrySensor(TelemetrySensorType_BME280, "BMP280")
+{
+}
+
+int32_t BMP280Sensor::runOnce() {
+    DEBUG_MSG("Init sensor: %s\n", sensorName);
+    if (!hasSensor()) {
+        return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
+    }
+    status = bmp280.begin(nodeTelemetrySensorsMap[sensorType]); 
+    return initI2CSensor();
+}
+
+void BMP280Sensor::setup() { }
+
+bool BMP280Sensor::getMetrics(Telemetry *measurement) {
+    DEBUG_MSG("BMP280Sensor::getMetrics\n");
+    measurement->variant.environment_metrics.temperature = bmp280.readTemperature();
+    measurement->variant.environment_metrics.barometric_pressure = bmp280.readPressure() / 100.0F;
+
+    return true;
+}    
\ No newline at end of file
diff --git a/src/modules/Telemetry/Sensor/BMP280Sensor.h b/src/modules/Telemetry/Sensor/BMP280Sensor.h
new file mode 100644
index 000000000..3525f3fa3
--- /dev/null
+++ b/src/modules/Telemetry/Sensor/BMP280Sensor.h
@@ -0,0 +1,16 @@
+#include "../mesh/generated/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include <Adafruit_BMP280.h>
+
+class BMP280Sensor : virtual public TelemetrySensor {
+private:
+    Adafruit_BMP280 bmp280;
+
+protected:
+    virtual void setup() override;
+
+public:
+    BMP280Sensor();
+    virtual int32_t runOnce() override;
+    virtual bool getMetrics(Telemetry *measurement) override;
+};    
\ No newline at end of file
diff --git a/src/modules/esp32/RangeTestModule.cpp b/src/modules/esp32/RangeTestModule.cpp
index 1a871e81f..c9713d94e 100644
--- a/src/modules/esp32/RangeTestModule.cpp
+++ b/src/modules/esp32/RangeTestModule.cpp
@@ -29,7 +29,7 @@ uint32_t packetSequence = 0;
 
 int32_t RangeTestModule::runOnce()
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     /*
         Uncomment the preferences below if you want to use the module
@@ -129,7 +129,7 @@ void RangeTestModuleRadio::sendPayload(NodeNum dest, bool wantReplies)
 
 ProcessMessage RangeTestModuleRadio::handleReceived(const MeshPacket &mp)
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     if (moduleConfig.range_test.enabled) {
 
diff --git a/src/modules/esp32/SerialModule.cpp b/src/modules/esp32/SerialModule.cpp
index f0bf1666c..b74f4c118 100644
--- a/src/modules/esp32/SerialModule.cpp
+++ b/src/modules/esp32/SerialModule.cpp
@@ -69,7 +69,7 @@ SerialModuleRadio::SerialModuleRadio() : SinglePortModule("SerialModuleRadio", P
 
 int32_t SerialModule::runOnce()
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     /*
         Uncomment the preferences below if you want to use the module
@@ -209,7 +209,7 @@ void SerialModuleRadio::sendPayload(NodeNum dest, bool wantReplies)
 
 ProcessMessage SerialModuleRadio::handleReceived(const MeshPacket &mp)
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     if (moduleConfig.serial.enabled) {
 
diff --git a/src/modules/esp32/StoreForwardModule.cpp b/src/modules/esp32/StoreForwardModule.cpp
index 90d82646d..4c4122e82 100644
--- a/src/modules/esp32/StoreForwardModule.cpp
+++ b/src/modules/esp32/StoreForwardModule.cpp
@@ -17,7 +17,7 @@ StoreForwardModule *storeForwardModule;
 int32_t StoreForwardModule::runOnce()
 {
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     if (moduleConfig.store_forward.enabled) {
 
@@ -241,7 +241,7 @@ void StoreForwardModule::sendMessage(NodeNum dest, char *str)
 
 ProcessMessage StoreForwardModule::handleReceived(const MeshPacket &mp)
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     if (moduleConfig.store_forward.enabled) {
 
         DEBUG_MSG("--- S&F Received something\n");
@@ -381,7 +381,7 @@ StoreForwardModule::StoreForwardModule()
     : SinglePortModule("StoreForwardModule", PortNum_TEXT_MESSAGE_APP), concurrency::OSThread("StoreForwardModule")
 {
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     isPromiscuous = true; // Brown chicken brown cow
 
diff --git a/src/nimble/BluetoothUtil.cpp b/src/nimble/BluetoothUtil.cpp
index fc4501ccb..021358453 100644
--- a/src/nimble/BluetoothUtil.cpp
+++ b/src/nimble/BluetoothUtil.cpp
@@ -15,7 +15,7 @@
 #include "sleep.h"
 #include <WiFi.h>
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "mesh/http/WiFiAPClient.h"
 #include <nvs_flash.h>
 #endif
@@ -508,7 +508,7 @@ void disablePin()
 // This should go somewhere else.
 void clearNVS()
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     // As soon as the LED flashing from double click is done, immediately do a tripple click to
     // erase nvs memory.
diff --git a/src/nrf52/architecture.h b/src/nrf52/architecture.h
new file mode 100644
index 000000000..8a84cde8c
--- /dev/null
+++ b/src/nrf52/architecture.h
@@ -0,0 +1,91 @@
+#pragma once
+
+#define ARCH_NRF52
+
+//
+// defaults for NRF52 architecture
+//
+
+#ifndef HAS_SCREEN
+    #define HAS_SCREEN 1
+#endif
+#ifndef HAS_WIRE
+    #define HAS_WIRE 1
+#endif
+#ifndef HAS_GPS
+    #define HAS_GPS 1
+#endif
+#ifndef HAS_BUTTON
+    #define HAS_BUTTON 1
+#endif
+#ifndef HAS_TELEMETRY
+    #define HAS_TELEMETRY 1
+#endif
+#ifndef HAS_RADIO
+    #define HAS_RADIO 1
+#endif
+
+//
+// set HW_VENDOR
+//
+
+// This string must exactly match the case used in release file names or the android updater won't work
+#ifdef ARDUINO_NRF52840_PCA10056
+    #define HW_VENDOR HardwareModel_NRF52840DK
+#elif defined(ARDUINO_NRF52840_PPR)
+    #define HW_VENDOR HardwareModel_PPR
+#elif defined(RAK4630)
+    #define HW_VENDOR HardwareModel_RAK4631
+#elif defined(TTGO_T_ECHO)
+    #define HW_VENDOR HardwareModel_T_ECHO
+#elif defined(NORDIC_PCA10059)
+    #define HW_VENDOR HardwareModel_NRF52840_PCA10059
+#else
+    #define HW_VENDOR HardwareModel_NRF52_UNKNOWN
+#endif
+
+//
+// Standard definitions for NRF52 targets
+//
+
+#ifdef ARDUINO_NRF52840_PCA10056
+
+// This board uses 0 to be mean LED on
+#undef LED_INVERTED
+#define LED_INVERTED 1
+
+#endif
+
+#ifndef TTGO_T_ECHO
+#define GPS_UBLOX
+#endif
+
+#define LED_PIN PIN_LED1 // LED1 on nrf52840-DK
+
+#ifdef PIN_BUTTON1
+#define BUTTON_PIN PIN_BUTTON1
+#endif
+
+#ifdef PIN_BUTTON2
+#define BUTTON_PIN_ALT PIN_BUTTON2
+#endif
+
+#ifdef PIN_BUTTON_TOUCH
+#define BUTTON_PIN_TOUCH PIN_BUTTON_TOUCH
+#endif
+
+// Always include the SEGGER code on NRF52 - because useful for debugging
+#include "SEGGER_RTT.h"
+
+// The channel we send stdout data to
+#define SEGGER_STDOUT_CH 0
+
+// Debug printing to segger console
+#define SEGGER_MSG(...) SEGGER_RTT_printf(SEGGER_STDOUT_CH, __VA_ARGS__)
+
+// If we are not on a NRF52840 (which has built in USB-ACM serial support) and we don't have serial pins hooked up, then we MUST
+// use SEGGER for debug output
+#if !defined(PIN_SERIAL_RX) && !defined(NRF52840_XXAA)
+// No serial ports on this board - ONLY use segger in memory console
+#define USE_SEGGER
+#endif
diff --git a/src/nrf52/main-nrf52.cpp b/src/nrf52/main-nrf52.cpp
index 90ab0113f..668565650 100644
--- a/src/nrf52/main-nrf52.cpp
+++ b/src/nrf52/main-nrf52.cpp
@@ -161,7 +161,7 @@ void cpuDeepSleep(uint64_t msecToWake)
 {
     // FIXME, configure RTC or button press to wake us
     // FIXME, power down SPI, I2C, RAMs
-#ifndef NO_WIRE
+#if HAS_WIRE
     Wire.end();
 #endif
     SPI.end();
diff --git a/src/portduino/architecture.h b/src/portduino/architecture.h
new file mode 100644
index 000000000..1b77afaa6
--- /dev/null
+++ b/src/portduino/architecture.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#define ARCH_PORTDUINO
+
+//
+// defaults for NRF52 architecture
+//
+
+//
+// set HW_VENDOR
+//
+
+#define HW_VENDOR HardwareModel_PORTDUINO
+
+#define HAS_RTC 1
+#define HAS_WIFI 1
diff --git a/src/shutdown.h b/src/shutdown.h
index 718ed0e0b..4c82b16c4 100644
--- a/src/shutdown.h
+++ b/src/shutdown.h
@@ -8,16 +8,16 @@ void powerCommandsCheck()
 {
     if (rebootAtMsec && millis() > rebootAtMsec) {
         DEBUG_MSG("Rebooting\n");
-#ifndef NO_ESP32
+#if defined(ARCH_ESP32)
         ESP.restart();
-#elif NRF52_SERIES
+#elif defined(ARCH_NRF52)
         NVIC_SystemReset();
 #else
         DEBUG_MSG("FIXME implement reboot for this platform");
 #endif
     }
 
-#if NRF52_SERIES
+#if defined(ARCH_NRF52)
     if (shutdownAtMsec) {
         screen->startShutdownScreen();
         playBeep();
@@ -40,7 +40,7 @@ void powerCommandsCheck()
             playShutdownMelody();
             power->shutdown();
         }
-#elif NRF52_SERIES
+#elif defined(ARCH_NRF52)
         playShutdownMelody();
         power->shutdown();
 #else
diff --git a/src/sleep.cpp b/src/sleep.cpp
index 849ec33a1..e02bb8b35 100644
--- a/src/sleep.cpp
+++ b/src/sleep.cpp
@@ -8,7 +8,7 @@
 #include "main.h"
 #include "target_specific.h"
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "esp32/pm.h"
 #include "esp_pm.h"
 #include "mesh/http/WiFiAPClient.h"
@@ -48,7 +48,7 @@ RTC_DATA_ATTR int bootCount = 0;
  */
 void setCPUFast(bool on)
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 
     if (isWifiAvailable()) {
         /*
@@ -101,7 +101,7 @@ void setGPSPower(bool on)
 // Perform power on init that we do on each wake from deep sleep
 void initDeepSleep()
 {
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
     bootCount++;
     wakeCause = esp_sleep_get_wakeup_cause();
     /*
@@ -207,7 +207,7 @@ void doDeepSleep(uint64_t msecToWake)
     cpuDeepSleep(msecToWake);
 }
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 /**
  * enter light sleep (preserves ram but stops everything about CPU).
  *
diff --git a/src/sleep.h b/src/sleep.h
index 6bcb23352..7f0592af4 100644
--- a/src/sleep.h
+++ b/src/sleep.h
@@ -6,7 +6,7 @@
 
 void doDeepSleep(uint64_t msecToWake), cpuDeepSleep(uint64_t msecToWake);
 
-#ifndef NO_ESP32
+#ifdef ARCH_ESP32
 #include "esp_sleep.h"
 esp_sleep_wakeup_cause_t doLightSleep(uint64_t msecToWake);
 
diff --git a/src/wifi-stubs.cpp b/src/wifi-stubs.cpp
index 87470c528..faf58b620 100644
--- a/src/wifi-stubs.cpp
+++ b/src/wifi-stubs.cpp
@@ -1,7 +1,7 @@
 //#include "mesh/wifi/WebServer.h"
 #include "configuration.h"
 
-#ifdef NO_ESP32
+#ifndef ARCH_ESP32
 
 //#include "mesh/wifi/WiFiAPClient.h"
 
diff --git a/variants/Dongle_nRF52840-pca10059-v1/variant.h b/variants/Dongle_nRF52840-pca10059-v1/variant.h
index 32ab073e8..c846573aa 100644
--- a/variants/Dongle_nRF52840-pca10059-v1/variant.h
+++ b/variants/Dongle_nRF52840-pca10059-v1/variant.h
@@ -123,7 +123,7 @@ static const uint8_t SCK = PIN_SPI_SCK;
 #define PIN_EINK_SCLK  (9)           // EPD_SCLK	
 #define PIN_EINK_MOSI  (10)          // EPD_MOSI	
 
-#define HAS_EINK
+#define USE_EINK
 
 /*
  * Wire Interfaces
diff --git a/variants/lora_isp4520/variant.h b/variants/lora_isp4520/variant.h
index 946a6cd3d..1d1ad8b97 100644
--- a/variants/lora_isp4520/variant.h
+++ b/variants/lora_isp4520/variant.h
@@ -90,7 +90,4 @@
 
 #define SX126X_E22 // Not really an E22 but this board clones using DIO3 for tcxo control
 
-#define NO_WIRE
-#define NO_GPS
-#define NO_SCREEN
 #endif
diff --git a/variants/m5stack_coreink/variant.h b/variants/m5stack_coreink/variant.h
index ff9eda6f4..ef490415c 100644
--- a/variants/m5stack_coreink/variant.h
+++ b/variants/m5stack_coreink/variant.h
@@ -32,12 +32,11 @@
 #define LORA_DIO1 RADIOLIB_NC
 #define LORA_DIO2 RADIOLIB_NC
 
-#define NO_GPS
 // This board has no GPS for now
 #undef GPS_RX_PIN
 #undef GPS_TX_PIN
 
-#define HAS_EINK
+#define USE_EINK
 //https://docs.m5stack.com/en/core/coreink
 //https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/schematic/Core/coreink/coreink_sch.pdf
 #define PIN_EINK_EN    -1
@@ -47,3 +46,5 @@
 #define PIN_EINK_RES   -1          // Connected to GPIO0 but no needed !!!! maybe causing issue ?
 #define PIN_EINK_SCLK  18           // EPD_SCLK
 #define PIN_EINK_MOSI  23          // EPD_MOSI
+
+#define HAS_RTC 1
diff --git a/variants/portduino/platformio.ini b/variants/portduino/platformio.ini
index 0030ae4b6..1a9dda202 100644
--- a/variants/portduino/platformio.ini
+++ b/variants/portduino/platformio.ini
@@ -5,6 +5,7 @@ build_src_filter =
   -<esp32/> 
   -<nimble/> 
   -<nrf52/> 
+  -<stm32wl/> 
   -<mesh/http/> 
   -<modules/esp32>
   -<modules/Telemetry>
@@ -14,10 +15,11 @@ lib_deps =
   ${networking_base.lib_deps}
   rweather/Crypto
   https://github.com/meshtastic/RadioLib.git#5582ac30578ff3f53f20630a00b2a8a4b8f92c74
+build_flags = ${arduino_base.build_flags} -Isrc/portduino
 
 [env:native]
 platform = https://github.com/meshtastic/platform-native.git 
-build_flags = ${arduino_base.build_flags} -O0 -I variants/portduino
+build_flags = ${portduino_base.build_flags} -O0 -I variants/portduino
 framework = arduino
 board = cross_platform
 lib_deps = ${portduino_base.lib_deps}
@@ -26,8 +28,8 @@ build_src_filter = ${portduino_base.build_src_filter}
 ; The Portduino based sim environment on top of a linux OS and touching linux hardware devices
 [env:linux]
 platform = https://github.com/meshtastic/platform-native.git 
-build_flags = ${arduino_base.build_flags} -O0 -lgpiod -I variants/portduino
+build_flags = ${portduino_base.build_flags} -O0 -lgpiod -I variants/portduino
 framework = arduino
 board = linux_hardware
 lib_deps = ${portduino_base.lib_deps}
-build_src_filter = ${portduino_base.build_src_filter}
\ No newline at end of file
+build_src_filter = ${portduino_base.build_src_filter}
diff --git a/variants/portduino/variant.h b/variants/portduino/variant.h
index ea827868a..328afaf19 100644
--- a/variants/portduino/variant.h
+++ b/variants/portduino/variant.h
@@ -1,5 +1,3 @@
-#define USE_SIM_RADIO
-
 // Pine64 uses a common pinout for their SX1262 vs RF95 modules - both can be enabled and we will probe at runtime for RF95 and if
 // not found then probe for SX1262.  Currently the RF95 code is disabled because I think the RF95 module won't need to ship.
 // #define USE_RF95
@@ -37,4 +35,4 @@
 #define RADIOLIB_SX127X_REG_TCXO SX127X_REG_TCXO
 #define RADIOLIB_SX127X_REG_MODEM_STAT SX127X_REG_MODEM_STAT
 #define RADIOLIB_SX127X_SYNC_WORD SX127X_SYNC_WORD
-#define RADIOLIB_SX127X_MASK_IRQ_FLAG_VALID_HEADER SX127X_MASK_IRQ_FLAG_VALID_HEADER
\ No newline at end of file
+#define RADIOLIB_SX127X_MASK_IRQ_FLAG_VALID_HEADER SX127X_MASK_IRQ_FLAG_VALID_HEADER
diff --git a/variants/rak4631/variant.h b/variants/rak4631/variant.h
index f1e144324..3648b8510 100644
--- a/variants/rak4631/variant.h
+++ b/variants/rak4631/variant.h
@@ -139,7 +139,7 @@ static const uint8_t SCK = PIN_SPI_SCK;
 // FIXME - I think this is actually just the board power enable - it enables power to the CPU also 
 //#define PIN_EINK_PWR_ON (-1)
 
-// #define HAS_EINK
+// #define USE_EINK
 
 /*
  * Wire Interfaces
@@ -224,6 +224,8 @@ static const uint8_t SCK = PIN_SPI_SCK;
 #define ADC_MULTIPLIER VBAT_DIVIDER_COMP //REAL_VBAT_MV_PER_LSB
 #define VBAT_RAW_TO_SCALED(x) (REAL_VBAT_MV_PER_LSB * x)
 
+#define HAS_RTC 1
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/variants/rak4631_epaper/variant.h b/variants/rak4631_epaper/variant.h
index 12f379d06..df68dac41 100644
--- a/variants/rak4631_epaper/variant.h
+++ b/variants/rak4631_epaper/variant.h
@@ -139,7 +139,7 @@ static const uint8_t SCK = PIN_SPI_SCK;
 // FIXME - I think this is actually just the board power enable - it enables power to the CPU also 
 //#define PIN_EINK_PWR_ON (-1)
 
-#define HAS_EINK
+#define USE_EINK
 
 /*
  * Wire Interfaces
@@ -221,6 +221,8 @@ static const uint8_t SCK = PIN_SPI_SCK;
 #define ADC_MULTIPLIER VBAT_DIVIDER_COMP //REAL_VBAT_MV_PER_LSB
 #define VBAT_RAW_TO_SCALED(x) (REAL_VBAT_MV_PER_LSB * x)
 
+#define HAS_RTC 1
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/variants/t-echo/variant.h b/variants/t-echo/variant.h
index 094894c74..f74a19c9b 100644
--- a/variants/t-echo/variant.h
+++ b/variants/t-echo/variant.h
@@ -139,7 +139,6 @@ External serial flash WP25R1635FZUIL0
 // #define LORA_DISABLE_SENDING // Define this to disable transmission for testing (power testing etc...)
 
 // #undef SX126X_CS
-// #define USE_SIM_RADIO // define to not use the lora radio hardware at all
 
 /*
  * eink display pins
@@ -157,7 +156,7 @@ External serial flash WP25R1635FZUIL0
 // FIXME - I think this is actually just the board power enable - it enables power to the CPU also 
 #define PIN_EINK_PWR_ON (0 + 12)
 
-#define HAS_EINK
+#define USE_EINK
 
 // No screen wipes on eink
 #define SCREEN_TRANSITION_MSECS 0
@@ -220,6 +219,8 @@ External serial flash WP25R1635FZUIL0
 #define ADC_MULTIPLIER VBAT_DIVIDER_COMP 
 #define VBAT_RAW_TO_SCALED(x) (REAL_VBAT_MV_PER_LSB * x)
 
+#define HAS_RTC 1
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/version.properties b/version.properties
index 3eb2c9ab4..e6f5a11df 100644
--- a/version.properties
+++ b/version.properties
@@ -1,4 +1,4 @@
 [VERSION]  
 major = 1
 minor = 3
-build = 27
+build = 28