Specify the RTC chip directly rather than use SensorRtcHelper.

Saves a bit of flash, and avoid mis-detection

bin/device-install.bat

@@ -156,16 +156,8 @@ IF %BPS_RESET% EQU 1 (
 SET "PROGNAME=!FILENAME:.factory.bin=!"
 CALL :LOG_MESSAGE DEBUG "Computed PROGNAME: !PROGNAME!"
 
-IF "__!MCU!__" == "__esp32s3__" (
-    @REM We are working with ESP32-S3
-    SET "OTA_FILENAME=bleota-s3.bin"
-) ELSE IF "__!MCU!__" == "__esp32c3__" (
-    @REM We are working with ESP32-C3
-    SET "OTA_FILENAME=bleota-c3.bin"
-) ELSE (
-    @REM Everything else
-    SET "OTA_FILENAME=bleota.bin"
-)
+@REM Determine OTA filename based on MCU type (unified OTA format)
+SET "OTA_FILENAME=mt-!MCU!-ota.bin"
 CALL :LOG_MESSAGE DEBUG "Set OTA_FILENAME to: !OTA_FILENAME!"
 
 @REM Set SPIFFS filename with "littlefs-" prefix.

bin/device-install.sh

@@ -131,14 +131,8 @@ if [[ -f "$FILENAME" && "$FILENAME" == *.factory.bin ]]; then
         exit 1
     fi
 
-    # Determine OTA filename based on MCU type
-    if [ "$MCU" == "esp32s3" ]; then
-        OTAFILE=bleota-s3.bin
-    elif [ "$MCU" == "esp32c3" ]; then
-        OTAFILE=bleota-c3.bin
-    else
-        OTAFILE=bleota.bin
-    fi
+    # Determine OTA filename based on MCU type (unified OTA format)
+    OTAFILE="mt-${MCU}-ota.bin"
 
     # Set SPIFFS filename with "littlefs-" prefix.
     SPIFFSFILE="littlefs-${PROGNAME/firmware-/}.bin"

src/gps/RTC.cpp

@@ -72,11 +72,13 @@ RTCSetResult readFromRTC()
 #elif defined(PCF8563_RTC) || defined(PCF85063_RTC)
 #if defined(PCF8563_RTC)
     if (rtc_found.address == PCF8563_RTC) {
+        SensorPCF8563 rtc;
 #elif defined(PCF85063_RTC)
     if (rtc_found.address == PCF85063_RTC) {
+        SensorPCF85063 rtc;
+
 #endif
         uint32_t now = millis();
-        SensorRtcHelper rtc;
 
 #if WIRE_INTERFACES_COUNT == 2
         rtc.begin(rtc_found.port == ScanI2C::I2CPort::WIRE1 ? Wire1 : Wire);
@@ -240,10 +242,12 @@ RTCSetResult perhapsSetRTC(RTCQuality q, const struct timeval *tv, bool forceUpd
 #elif defined(PCF8563_RTC) || defined(PCF85063_RTC)
 #if defined(PCF8563_RTC)
         if (rtc_found.address == PCF8563_RTC) {
+            SensorPCF8563 rtc;
 #elif defined(PCF85063_RTC)
         if (rtc_found.address == PCF85063_RTC) {
+            SensorPCF85063 rtc;
+
 #endif
-            SensorRtcHelper rtc;
 
 #if WIRE_INTERFACES_COUNT == 2
             rtc.begin(rtc_found.port == ScanI2C::I2CPort::WIRE1 ? Wire1 : Wire);

src/platform/esp32/main-esp32.cpp

@@ -24,6 +24,11 @@
 #include <nvs.h>
 #include <nvs_flash.h>
 
+// Weak empty variant shutdown prep function.
+// May be redefined by variant files.
+void variant_shutdown() __attribute__((weak));
+void variant_shutdown() {}
+
 #if !defined(CONFIG_IDF_TARGET_ESP32S2) && !MESHTASTIC_EXCLUDE_BLUETOOTH
 void setBluetoothEnable(bool enable)
 {
@@ -249,6 +254,7 @@ void cpuDeepSleep(uint32_t msecToWake)
 
 #endif // #end ESP32S3_WAKE_TYPE
 #endif
+    variant_shutdown();
 
     // We want RTC peripherals to stay on
     esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);

src/platform/nrf52/main-nrf52.cpp

@@ -46,7 +46,7 @@
 
 uint16_t getVDDVoltage();
 
-// Weak empty variant initialization function.
+// Weak empty variant shutdown prep function.
 // May be redefined by variant files.
 void variant_shutdown() __attribute__((weak));
 void variant_shutdown() {}

variants/esp32s3/ELECROW-ThinkNode-M5/platformio.ini

@@ -34,3 +34,5 @@ lib_deps = ${esp32s3_base.lib_deps}
   https://github.com/meshtastic/GxEPD2/archive/a05c11c02862624266b61599b0d6ba93e33c6f24.zip
   # renovate: datasource=custom.pio depName=PCA9557-arduino packageName=maxpromer/library/PCA9557-arduino
   maxpromer/PCA9557-arduino@1.0.0
+  # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
+  lewisxhe/SensorLib@0.3.4

variants/esp32s3/ELECROW-ThinkNode-M5/variant.cpp

@@ -1,12 +1,17 @@
 #include "variant.h"
 #include <PCA9557.h>
 
-PCA9557 io(0x18, &Wire);
+PCA9557 io(0x18, &Wire1);
 
 void earlyInitVariant()
 {
-    Wire.begin(48, 47);
+    Wire1.begin(48, 47);
     io.pinMode(PCA_PIN_EINK_EN, OUTPUT);
     io.pinMode(PCA_PIN_POWER_EN, OUTPUT);
     io.digitalWrite(PCA_PIN_POWER_EN, HIGH);
 }
+
+void variant_shutdown()
+{
+    io.digitalWrite(PCA_PIN_POWER_EN, LOW);
+}

variants/esp32s3/ELECROW-ThinkNode-M5/variant.h

@@ -30,6 +30,9 @@
 #define I2C_SCL 1
 #define I2C_SDA 2
 
+// PCF8563 RTC Module
+#define PCF8563_RTC 0x51
+
 // GPS pins
 #define GPS_SWITH 10
 #define HAS_GPS 1

variants/nrf52840/ELECROW-ThinkNode-M3/platformio.ini

@@ -24,5 +24,5 @@ lib_deps =
   ${nrf52840_base.lib_deps}
   # renovate: datasource=custom.pio depName=nRF52_PWM packageName=khoih-prog/library/nRF52_PWM
   khoih-prog/nRF52_PWM@1.0.1
-  ; # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
+  # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
   lewisxhe/SensorLib@0.3.4

variants/nrf52840/ELECROW-ThinkNode-M3/variant.h

@@ -116,7 +116,6 @@ extern "C" {
 
 // PCF8563 RTC Module
 #define PCF8563_RTC 0x51
-#define HAS_RTC 1
 
 #ifdef __cplusplus
 }

variants/nrf52840/ELECROW-ThinkNode-M6/platformio.ini

@@ -21,5 +21,5 @@ build_flags = ${nrf52840_base.build_flags}
 build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/ELECROW-ThinkNode-M6>
 lib_deps =
   ${nrf52840_base.lib_deps}
-  ; # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
+  # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
   lewisxhe/SensorLib@0.3.4

variants/nrf52840/ELECROW-ThinkNode-M6/variant.h

@@ -121,7 +121,6 @@ static const uint8_t A0 = PIN_A0;
 
 // PCF8563 RTC Module
 #define PCF8563_RTC 0x51
-#define HAS_RTC 1
 
 // SPI
 #define SPI_INTERFACES_COUNT 1

variants/nrf52840/t-echo-plus/variant.h

@@ -132,9 +132,6 @@ static const uint8_t A0 = PIN_A0;
 
 #define HAS_DRV2605 1
 
-// Battery / ADC already defined above
-#define HAS_RTC 1
-
 #define SERIAL_PRINT_PORT 0
 
 #ifdef __cplusplus