Updated volt pin name

src/helper.cpp

@@ -274,7 +274,7 @@ BatteryVoltage::BatteryVoltage() {
 #if defined(ESP8266)
   pinMode(PIN_A0, INPUT);
 #else
-  pinMode(PIN_A0, INPUT_PULLDOWN);
+  pinMode(PIN_VOLT, INPUT_PULLDOWN);
 #endif
 }
 
@@ -282,7 +282,7 @@ void BatteryVoltage::read() {
   // The analog pin can only handle 3.3V maximum voltage so we need to reduce
   // the voltage (from max 5V)
   float factor = myConfig.getVoltageFactor();  // Default value is 1.63
-  int v = analogRead(PIN_A0);
+  int v = analogRead(PIN_VOLT);
 
   // An ESP8266 has a ADC range of 0-1023 and a maximum voltage of 3.3V
   // An ESP32 has an ADC range of 0-4095 and a maximum voltage of 3.3V

src/main.hpp

@@ -46,7 +46,7 @@ extern RunMode runMode;
 #define PIN_SCL D4
 #define PIN_DS D6
 #define PIN_LED 2
-// #define PIN_A0 A0
+#define PIN_VOLT PIN_A0
 #elif defined(ESP32C3)
 // Hardware config for ESP32-c3-mini, iSpindel hardware
 // ------------------------------------------------------
@@ -66,7 +66,7 @@ extern RunMode runMode;
 #define PIN_SCL 6
 #endif  // JTAG_DEBUG
 #define PIN_DS A3
-#define PIN_A0 A0
+#define PIN_VOLT A0
 // This should be the LED_BUILTIN, but that is also connected SDA (Gyro) so we
 // cannot use both. So we point LED to pin 8 which is not used.
 #define PIN_LED 8
@@ -83,7 +83,7 @@ extern RunMode runMode;
 #define PIN_SDA A17
 #define PIN_SCL A15
 #define PIN_DS A8
-#define PIN_A0 A2
+#define PIN_VOLT A2
 #define PIN_LED LED_BUILTIN
 #elif defined(ESP32LITE)
 // Hardware config for ESP32-lite, Floaty hardware
@@ -98,7 +98,7 @@ extern RunMode runMode;
 #define PIN_SDA A17
 #define PIN_SCL A19
 #define PIN_DS A3
-#define PIN_A0 A0
+#define PIN_VOLT A7
 #define PIN_VCC A5
 #define PIN_GND A18
 #define PIN_LED LED_BUILTIN
@@ -116,7 +116,7 @@ extern RunMode runMode;
 #define PIN_SCL D4
 #define PIN_DS D6
 #define PIN_LED LED_BUILTIN
-// #define PIN_A0 A4
+#define PIN_VOLT PIN_A0
 #endif
 
 #if defined(USE_SERIAL_PINS) && defined(ESP32)