Heltec boards sensor and low power features update (#4418)

* Update sensor drive and low power features.

* Update ST7789 TFT control logic.

* Update Heltec nRF board low power features.

* Update the GPS UART port pointer

src/gps/GPS.cpp

@@ -810,6 +810,16 @@ void GPS::setPowerState(GPSPowerState newState, uint32_t sleepTime)
     powerState = newState;
     LOG_INFO("GPS power state moving from %s to %s\n", getGPSPowerStateString(oldState), getGPSPowerStateString(newState));
 
+#ifdef HELTEC_MESH_NODE_T114
+    if( (oldState==GPS_OFF || oldState==GPS_HARDSLEEP) && (newState!=GPS_OFF && newState!=GPS_HARDSLEEP) )
+    {
+        _serial_gps->begin(serialSpeeds[speedSelect]);
+    }
+    else if( (newState==GPS_OFF || newState==GPS_HARDSLEEP) && (oldState!=GPS_OFF && oldState!=GPS_HARDSLEEP) )
+    {
+        _serial_gps->end();
+    }
+#endif
     switch (newState) {
     case GPS_ACTIVE:
     case GPS_IDLE:

src/graphics/Screen.cpp

@@ -1591,6 +1591,9 @@ void Screen::handleSetOn(bool on, FrameCallback einkScreensaver)
 
             dispdev->displayOn();
 #ifdef USE_ST7789
+            pinMode(VTFT_CTRL, OUTPUT);
+            digitalWrite(VTFT_CTRL,LOW);
+            ui->init();
 #ifdef ESP_PLATFORM
             analogWrite(VTFT_LEDA, BRIGHTNESS_DEFAULT);
 #else
@@ -1609,10 +1612,21 @@ void Screen::handleSetOn(bool on, FrameCallback einkScreensaver)
 #endif
             LOG_INFO("Turning off screen\n");
             dispdev->displayOff();
-
 #ifdef USE_ST7789
-            pinMode(VTFT_LEDA, OUTPUT);
-            digitalWrite(VTFT_LEDA, !TFT_BACKLIGHT_ON);
+            SPI1.end();
+#if defined(ARCH_ESP32)
+            pinMode(VTFT_LEDA, ANALOG);
+            pinMode(VTFT_CTRL, ANALOG);
+            pinMode(ST7789_RESET,ANALOG);
+            pinMode(ST7789_RS,ANALOG);
+            pinMode(ST7789_NSS,ANALOG);
+#else
+            nrf_gpio_cfg_default(VTFT_LEDA);
+            nrf_gpio_cfg_default(VTFT_CTRL);
+            nrf_gpio_cfg_default(ST7789_RESET);
+            nrf_gpio_cfg_default(ST7789_RS);
+            nrf_gpio_cfg_default(ST7789_NSS);
+#endif
 #endif
 
 #ifdef T_WATCH_S3

src/main.cpp

@@ -319,6 +319,14 @@ void setup()
     digitalWrite(RESET_OLED, 1);
 #endif
 
+#ifdef SENSOR_POWER_CTRL_PIN
+    pinMode(SENSOR_POWER_CTRL_PIN,OUTPUT);
+    digitalWrite(SENSOR_POWER_CTRL_PIN,SENSOR_POWER_ON);
+#endif
+
+#ifdef SENSOR_GPS_CONFLICT
+    bool sensor_detected=false;
+#endif
 #ifdef PERIPHERAL_WARMUP_MS
     // Some peripherals may require additional time to stabilize after power is connected
     // e.g. I2C on Heltec Vision Master
@@ -458,6 +466,9 @@ void setup()
         LOG_INFO("No I2C devices found\n");
     } else {
         LOG_INFO("%i I2C devices found\n", i2cCount);
+#ifdef SENSOR_GPS_CONFLICT
+         sensor_detected=true;
+#endif
     }
 
 #ifdef ARCH_ESP32
@@ -703,6 +714,10 @@ void setup()
 
 #if !MESHTASTIC_EXCLUDE_GPS
     // If we're taking on the repeater role, ignore GPS
+#ifdef SENSOR_GPS_CONFLICT
+     if(sensor_detected==false)
+     {
+#endif
     if (HAS_GPS) {
         if (config.device.role != meshtastic_Config_DeviceConfig_Role_REPEATER &&
             config.position.gps_mode != meshtastic_Config_PositionConfig_GpsMode_NOT_PRESENT) {
@@ -714,6 +729,10 @@ void setup()
             }
         }
     }
+#ifdef SENSOR_GPS_CONFLICT
+    }
+#endif
+
 #endif
 
     nodeStatus->observe(&nodeDB->newStatus);

src/platform/esp32/main-esp32.cpp

@@ -228,6 +228,9 @@ void cpuDeepSleep(uint32_t msecToWake)
     // FIXME change polarity in hw so we can wake on ANY_HIGH instead - that would allow us to use all three buttons (instead
     // of just the first) gpio_pullup_en((gpio_num_t)BUTTON_PIN);
 
+#ifdef ESP32S3_WAKE_TYPE
+	esp_sleep_enable_ext1_wakeup(gpioMask, ESP32S3_WAKE_TYPE);
+#else
 #if SOC_PM_SUPPORT_EXT_WAKEUP
 #ifdef CONFIG_IDF_TARGET_ESP32
     // ESP_EXT1_WAKEUP_ALL_LOW has been deprecated since esp-idf v5.4 for any other target.
@@ -236,6 +239,8 @@ void cpuDeepSleep(uint32_t msecToWake)
     esp_sleep_enable_ext1_wakeup(gpioMask, ESP_EXT1_WAKEUP_ANY_LOW);
 #endif
 #endif
+
+#endif //#end ESP32S3_WAKE_TYPE
 #endif
 
     // We want RTC peripherals to stay on

src/platform/nrf52/NRF52Bluetooth.cpp

@@ -198,8 +198,15 @@ void NRF52Bluetooth::shutdown()
 {
     // Shutdown bluetooth for minimum power draw
     LOG_INFO("Disable NRF52 bluetooth\n");
-    if (connectionHandle != 0) {
-        Bluefruit.disconnect(connectionHandle);
+    uint8_t connection_num=Bluefruit.connected();
+    if(connection_num)
+    {
+        for(uint8_t i=0;i<connection_num;i++)
+        {
+            LOG_INFO("NRF52 bluetooth disconnecting handle %d\n",i);
+            Bluefruit.disconnect(i);
+        }
+        delay(100);//wait for ondisconnect;
     }
     Bluefruit.Advertising.stop();
 }

src/platform/nrf52/main-nrf52.cpp

@@ -251,6 +251,12 @@ void cpuDeepSleep(uint32_t msecToWake)
     nrf_gpio_cfg_default(WB_I2C1_SCL);
     nrf_gpio_cfg_default(WB_I2C1_SDA);
 #endif
+#endif
+
+#ifdef HELTEC_MESH_NODE_T114
+    nrf_gpio_cfg_default(PIN_GPS_PPS);
+    detachInterrupt(PIN_GPS_PPS);
+    detachInterrupt(PIN_BUTTON1);
 #endif
     // Sleepy trackers or sensors can low power "sleep"
     // Don't enter this if we're sleeping portMAX_DELAY, since that's a shutdown event

src/sleep.cpp

@@ -278,6 +278,13 @@ void doDeepSleep(uint32_t msecToWake, bool skipPreflight = false)
         digitalWrite(LORA_CS, HIGH);
         gpio_hold_en((gpio_num_t)LORA_CS);
     }
+
+#if defined(I2C_SDA)
+		Wire.end();
+		pinMode(I2C_SDA,ANALOG);
+		pinMode(I2C_SCL,ANALOG);
+#endif
+
 #endif
 
 #ifdef HAS_PMU

variants/heltec_capsule_sensor_v3/variant.h

@@ -40,3 +40,13 @@
 
 #define SX126X_DIO2_AS_RF_SWITCH
 #define SX126X_DIO3_TCXO_VOLTAGE 1.8
+
+#define I2C_SDA 1
+#define I2C_SCL 2
+#define HAS_SCREEN 0
+#define SENSOR_POWER_CTRL_PIN 21
+#define SENSOR_POWER_ON       1
+
+#define SENSOR_GPS_CONFLICT
+
+#define ESP32S3_WAKE_TYPE ESP_EXT1_WAKEUP_ANY_HIGH

variants/heltec_mesh_node_t114/variant.h

@@ -146,7 +146,7 @@ No longer populated on PCB
 
 #define GPS_L76K
 
-#define PIN_GPS_RESET (32 + 6) // An output to reset L76K GPS. As per datasheet, low for > 100ms will reset the L76K
+//#define PIN_GPS_RESET (32 + 6) // An output to reset L76K GPS. As per datasheet, low for > 100ms will reset the L76K
 #define GPS_RESET_MODE LOW
 #define PIN_GPS_EN (21)
 #define GPS_EN_ACTIVE HIGH