Partial Heltec Wireless Paper and Wireless Tracker support (#2594)

* WIP

* Comment

* WIP

* TFT_CTRL

* Update platformio.ini

update to current latest version available

* Update EInkDisplay2.cpp

Is the e-ink Display a DEPG0213BN ?

* Logging

* trunk fmt

---------

Co-authored-by: Mark Trevor Birss <markbirss@gmail.com>

src/gps/GPS.cpp

@@ -181,10 +181,14 @@ bool GPS::setupGPS()
             config.position.tx_gpio = GPS_TX_PIN;
 #endif
 
+//#define BAUD_RATE 115200
 // ESP32 has a special set of parameters vs other arduino ports
 #if defined(ARCH_ESP32)
-        if (config.position.rx_gpio)
+        if (config.position.rx_gpio) {
+            LOG_DEBUG("Using GPIO%d for GPS RX\n", config.position.rx_gpio);
+            LOG_DEBUG("Using GPIO%d for GPS TX\n", config.position.tx_gpio);
             _serial_gps->begin(GPS_BAUDRATE, SERIAL_8N1, config.position.rx_gpio, config.position.tx_gpio);
+        }
 #else
         _serial_gps->begin(GPS_BAUDRATE);
 #endif

src/graphics/EInkDisplay2.cpp

@@ -7,6 +7,10 @@
 #include "main.h"
 #include <SPI.h>
 
+// #ifdef HELTEC_WIRELESS_PAPER
+// SPIClass *hspi = NULL;
+// #endif
+
 #define COLORED GxEPD_BLACK
 #define UNCOLORED GxEPD_WHITE
 
@@ -19,13 +23,13 @@
 #define TECHO_DISPLAY_MODEL GxEPD2_213_BN
 
 // 4.2 inch 300x400 - GxEPD2_420_M01
-//#define TECHO_DISPLAY_MODEL GxEPD2_420_M01
+// #define TECHO_DISPLAY_MODEL GxEPD2_420_M01
 
 // 2.9 inch 296x128 - GxEPD2_290_T5D
-//#define TECHO_DISPLAY_MODEL GxEPD2_290_T5D
+// #define TECHO_DISPLAY_MODEL GxEPD2_290_T5D
 
 // 1.54 inch 200x200 - GxEPD2_154_M09
-//#define TECHO_DISPLAY_MODEL GxEPD2_154_M09
+// #define TECHO_DISPLAY_MODEL GxEPD2_154_M09
 
 #elif defined(MAKERPYTHON)
 // 2.9 inch 296x128 - GxEPD2_290_T5D
@@ -41,6 +45,9 @@
 // 1.54 inch 200x200 - GxEPD2_154_M09
 #define TECHO_DISPLAY_MODEL GxEPD2_154_M09
 
+#elif defined(HELTEC_WIRELESS_PAPER)
+//#define TECHO_DISPLAY_MODEL GxEPD2_213_T5D
+#define TECHO_DISPLAY_MODEL GxEPD2_213_BN
 #endif
 
 GxEPD2_BW<TECHO_DISPLAY_MODEL, TECHO_DISPLAY_MODEL::HEIGHT> *adafruitDisplay;
@@ -62,6 +69,10 @@ EInkDisplay::EInkDisplay(uint8_t address, int sda, int scl, OLEDDISPLAY_GEOMETRY
 
     // GxEPD2_154_M09
     // setGeometry(GEOMETRY_RAWMODE, 200, 200);
+
+#elif defined(HELTEC_WIRELESS_PAPER)
+    // setGeometry(GEOMETRY_RAWMODE, 212, 104);
+    setGeometry(GEOMETRY_RAWMODE, 250, 122);
 #elif defined(MAKERPYTHON)
     // GxEPD2_290_T5D
     setGeometry(GEOMETRY_RAWMODE, 296, 128);
@@ -218,6 +229,16 @@ bool EInkDisplay::connect()
             (void)adafruitDisplay;
         }
     }
+#elif defined(HELTEC_WIRELESS_PAPER)
+    {
+        auto lowLevel = new TECHO_DISPLAY_MODEL(PIN_EINK_CS, PIN_EINK_DC, PIN_EINK_RES, PIN_EINK_BUSY);
+        adafruitDisplay = new GxEPD2_BW<TECHO_DISPLAY_MODEL, TECHO_DISPLAY_MODEL::HEIGHT>(*lowLevel);
+        // hspi = new SPIClass(HSPI);
+        // hspi->begin(PIN_EINK_SCLK, -1, PIN_EINK_MOSI, PIN_EINK_CS); // SCLK, MISO, MOSI, SS
+        adafruitDisplay->init(115200, true, 10, false, SPI, SPISettings(6000000, MSBFIRST, SPI_MODE0));
+        adafruitDisplay->setRotation(3);
+        adafruitDisplay->setPartialWindow(0, 0, displayWidth, displayHeight);
+    }
 #elif defined(PCA10059)
     {
         auto lowLevel = new TECHO_DISPLAY_MODEL(PIN_EINK_CS, PIN_EINK_DC, PIN_EINK_RES, PIN_EINK_BUSY);

src/graphics/TFTDisplay.cpp

@@ -65,6 +65,10 @@ bool TFTDisplay::connect()
     digitalWrite(TFT_BL, HIGH);
     pinMode(TFT_BL, OUTPUT);
 #endif
+#ifdef TFT_POWER_EN
+    digitalWrite(TFT_POWER_EN, HIGH);
+    pinMode(TFT_POWER_EN, OUTPUT);
+#endif
 
 #ifdef ST7735_BACKLIGHT_EN
     digitalWrite(ST7735_BACKLIGHT_EN, HIGH);

src/main.cpp

@@ -214,6 +214,16 @@ void setup()
     digitalWrite(VEXT_ENABLE, 0); // turn on the display power
 #endif
 
+#ifdef VGNSS_CTRL
+    pinMode(VGNSS_CTRL, OUTPUT);
+    digitalWrite(VGNSS_CTRL, LOW);
+#endif
+
+#if defined(VTFT_CTRL)
+    pinMode(VTFT_CTRL, OUTPUT);
+    digitalWrite(VTFT_CTRL, LOW);
+#endif
+
 #ifdef RESET_OLED
     pinMode(RESET_OLED, OUTPUT);
     digitalWrite(RESET_OLED, 1);

src/platform/esp32/architecture.h

@@ -97,6 +97,10 @@
 #define HW_VENDOR meshtastic_HardwareModel_HELTEC_V3
 #elif defined(HELTEC_WSL_V3)
 #define HW_VENDOR meshtastic_HardwareModel_HELTEC_WSL_V3
+#elif defined(HELTEC_WIRELESS_TRACKER)
+#define HW_VENDOR meshtastic_HardwareModel_HELTEC_WIRELESS_TRACKER
+#elif defined(HELTEC_WIRELESS_PAPER)
+#define HW_VENDOR meshtastic_HardwareModel_HELTEC_WIRELESS_PAPER
 #elif defined(TLORA_T3S3_V1)
 #define HW_VENDOR meshtastic_HardwareModel_TLORA_T3_S3
 #elif defined(BETAFPV_2400_TX)

variants/heltec_wireless_paper/platformio.ini

@@ -0,0 +1,8 @@
+[env:heltec-wireless-paper]
+extends = esp32s3_base
+board = heltec_wifi_lora_32_V3
+build_flags = 
+  ${esp32s3_base.build_flags} -D HELTEC_WIRELESS_PAPER -I variants/heltec_wireless_paper
+lib_deps =
+  ${esp32s3_base.lib_deps}
+  zinggjm/GxEPD2@^1.5.2

variants/heltec_wireless_paper/variant.h

@@ -0,0 +1,39 @@
+#define LED_PIN 18
+
+#define USE_EINK
+/*
+ * eink display pins
+ */
+#define PIN_EINK_CS 4
+#define PIN_EINK_BUSY 7
+#define PIN_EINK_DC 5
+#define PIN_EINK_RES 6
+#define PIN_EINK_SCLK 3
+#define PIN_EINK_MOSI 2
+
+#define VEXT_ENABLE Vext // active low, powers the oled display and the lora antenna boost
+#define BUTTON_PIN 0
+
+#define BATTERY_PIN 1 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
+#define ADC_CHANNEL ADC1_GPIO1_CHANNEL
+#define ADC_ATTENUATION ADC_ATTEN_DB_2_5 // lower dB for high resistance voltage divider
+#define ADC_MULTIPLIER 4.9
+
+#define USE_SX1262
+
+#define LORA_DIO0 -1 // a No connect on the SX1262 module
+#define LORA_RESET 12
+#define LORA_DIO1 14 // SX1262 IRQ
+#define LORA_DIO2 13 // SX1262 BUSY
+#define LORA_DIO3    // Not connected on PCB, but internally on the TTGO SX1262, if DIO3 is high the TXCO is enabled
+
+#define RF95_SCK 9
+#define RF95_MISO 11
+#define RF95_MOSI 10
+#define RF95_NSS 8
+
+#define SX126X_CS RF95_NSS
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY LORA_DIO2
+#define SX126X_RESET LORA_RESET
+#define SX126X_E22

variants/heltec_wireless_tracker/platformio.ini

@@ -0,0 +1,23 @@
+[env:heltec-wireless-tracker]
+extends = esp32s3_base
+board = heltec_wifi_lora_32_V3
+build_flags = 
+  ${esp32s3_base.build_flags} -D HELTEC_WIRELESS_TRACKER -I variants/heltec_wireless_tracker
+  -DUSER_SETUP_LOADED
+  -DTFT_WIDTH=80
+  -DTFT_HEIGHT=160
+  -DST7735_GREENTAB160x80
+  -DST7735_DRIVER
+  ;-TFT_RGB_ORDER=TFT_BGR
+  -DTFT_CS=38
+  -DTFT_DC=40
+  -DTFT_RST=39
+  -DTFT_WR=42
+  -DTFT_SCLK=41
+  ;-DSPI_FREQUENCY=40000000
+  ;-DSPI_FREQUENCY=27000000
+  ;-DSPI_READ_FREQUENCY=16000000
+  ;-DDISABLE_ALL_LIBRARY_WARNINGS
+lib_deps =
+  ${esp32s3_base.lib_deps}
+  bodmer/TFT_eSPI@^2.4.76

variants/heltec_wireless_tracker/variant.h

@@ -0,0 +1,53 @@
+#define LED_PIN 18
+
+#define TFT_POWER_EN 46
+
+#define ST7735_RESET 39 // Output
+#define ST7735_CS 38
+#define ST7735_BACKLIGHT_EN 45
+#define ST7735_RS 40
+#define ST7735_SDA 42
+#define ST7735_SCK 41
+
+// #define RESET_OLED 21
+// #define I2C_SDA 17 // I2C pins for this board
+// #define I2C_SCL 18
+
+#define SCREEN_TRANSITION_FRAMERATE 1 // fps
+
+#define VEXT_ENABLE Vext // active low, powers the oled display and the lora antenna boost
+#define BUTTON_PIN 0
+
+#define BATTERY_PIN 1 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
+#define ADC_CHANNEL ADC1_GPIO1_CHANNEL
+#define ADC_ATTENUATION ADC_ATTEN_DB_2_5 // lower dB for high resistance voltage divider
+#define ADC_MULTIPLIER 4.9
+
+#undef GPS_RX_PIN
+#undef GPS_TX_PIN
+#define GPS_RX_PIN 33
+#define GPS_TX_PIN 34
+#define PIN_GPS_RESET 35
+#define PIN_GPS_PPS 36
+#define VGNSS_CTRL 37 // Heltec Tracker needs this pulled low for GPS
+
+#define VTFT_CTRL 46 // Heltec Tracker needs this pulled low for TFT
+
+#define USE_SX1262
+
+#define LORA_DIO0 -1 // a No connect on the SX1262 module
+#define LORA_RESET 12
+#define LORA_DIO1 14 // SX1262 IRQ
+#define LORA_DIO2 13 // SX1262 BUSY
+#define LORA_DIO3    // Not connected on PCB, but internally on the TTGO SX1262, if DIO3 is high the TXCO is enabled
+
+#define RF95_SCK 9
+#define RF95_MISO 11
+#define RF95_MOSI 10
+#define RF95_NSS 8
+
+#define SX126X_CS RF95_NSS
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY LORA_DIO2
+#define SX126X_RESET LORA_RESET
+#define SX126X_E22