Disaster Radio dev board initial support (#1443)

* Initial pin redefs for Disasterradio's prototype pcb

* Initializes E22-900M30S correctly, seems to be ready to work

* Add new macros for upstream merge

* Cleaning up stray experiment

That was silly, what was I even thinking? Late evening coding mistakes.

platformio.ini

@@ -29,6 +29,7 @@ default_envs = tbeam
 ;default_envs = nano-g1
 ;default_envs = meshtastic-diy-v1
 ;default_envs = meshtastic-diy-v1.1
+;default_envs = meshtastic-dr-dev
 
 ; board specific config can be moved to the respective 'variants' file.
 ; See https://docs.platformio.org/en/latest/projectconf/section_platformio.html#extra-configs

src/configuration.h

@@ -169,6 +169,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // 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(DR_DEV)
+// This string must exactly match the case used in release file names or the android updater won't work
+#define HW_VENDOR HardwareModel_DR_DEV
+
 #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
@@ -254,4 +258,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "variant.h"
 #include "RF95Configuration.h"
-#include "DebugConfiguration.h"
+#include "DebugConfiguration.h"

variants/diy/dr-dev/variant.h

@@ -0,0 +1,68 @@
+// For OLED LCD
+#define I2C_SDA 21
+#define I2C_SCL 22
+
+// GPS
+#undef GPS_RX_PIN
+#define GPS_RX_PIN NOT_A_PIN
+
+#define BUTTON_PIN 2 // The middle button GPIO on the T-Beam
+#define BUTTON_NEED_PULLUP
+#define EXT_NOTIFY_OUT 12 // Overridden default pin to use for Ext Notify Module (#975).
+
+#define LORA_DIO0 -1  // a No connect on the SX1262/SX1268 module
+#define LORA_RESET -1 // RST for SX1276, and for SX1262/SX1268
+#define LORA_DIO1 27  // IRQ for SX1262/SX1268 (IO26 FOR 22S)
+#define LORA_DIO2 NOT_A_PIN  // BUSY for SX1262/SX1268
+#define LORA_DIO3     // Not connected on PCB, but internally on the TTGO SX1262/SX1268, if DIO3 is high the TXCO is enabled
+
+// In transmitting, set TXEN as high communication level，RXEN pin is low level;
+// In receiving, set RXEN as high communication level, TXEN is lowlevel;
+// Before powering off, set TXEN、RXEN as low level.
+#define LORA_RXEN 17  // Input - RF switch RX control, connecting external MCU IO, valid in high level
+#define LORA_TXEN -1 // Input - RF switch TX control, connecting external MCU IO or DIO2, valid in high level
+/*  --PINS FOR THE 900M22S
+#undef RF95_SCK
+#define RF95_SCK 18
+#undef RF95_MISO
+#define RF95_MISO 19
+#undef RF95_MOSI
+#define RF95_MOSI 23
+#undef RF95_NSS
+#define RF95_NSS 16
+*/
+
+// PINS FOR THE 900M30S
+#undef RF95_SCK
+#define RF95_SCK 18
+#undef RF95_MISO
+#define RF95_MISO 19
+#undef RF95_MOSI
+#define RF95_MOSI 23
+#undef RF95_NSS
+#define RF95_NSS 33
+
+// RX/TX for RFM95/SX127x
+#define RF95_RXEN LORA_RXEN
+#define RF95_TXEN LORA_TXEN
+// #define RF95_TCXO <GPIO#>
+
+// common pinouts for SX126X modules
+#define SX126X_CS 33
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY 35
+#define SX126X_RESET LORA_RESET
+#define SX126X_RXEN LORA_RXEN
+#define SX126X_TXEN LORA_TXEN
+
+// supported modules list
+#define USE_RF95 // RFM95/SX127x
+#define USE_SX1262
+#define USE_SX1268
+#define USE_LLCC68
+
+#ifdef EBYTE_E22
+// Internally the TTGO module hooks the SX126x-DIO2 in to control the TX/RX switch
+// (which is the default for the sx1262interface code)
+#define SX126X_E22
+#endif

variants/diy/platformio.ini

@@ -16,4 +16,16 @@ build_flags =
   ${esp32_base.build_flags}
   -D DIY_V1
   -D EBYTE_E22
-  -I variants/diy/v1_1
+  -I variants/diy/v1_1
+
+; Port to Disaster Radio's ESP32-v3 Dev Board
+[env:meshtastic-dr-dev]
+extends = esp32_base
+board = esp32doit-devkit-v1
+board_upload.maximum_size = 4194304
+board_upload.maximum_ram_size = 532480
+build_flags =
+  ${esp32_base.build_flags}
+  -D DR_DEV
+  -D EBYTE_E22
+  -I variants/diy/dr-dev