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Fix xiao_ble variant build error due to undefined BATTERY_SENSE_RESOLUTION_BITS (#3732)

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Define BATTERY_SENSE_RESOLUTION_BITS based on [amoroz's snippet on the Meshtastic forum](https://meshtastic.discourse.group/t/new-1w-diy-variant-xiao-nrf52840-ebyte-e22-900m30s/7904/10).

Fixes following build error:

```
src/Power.cpp: In member function 'virtual uint16_t AnalogBatteryLevel::getBattVoltage()':
src/Power.cpp:224:79: error: 'BATTERY_SENSE_RESOLUTION_BITS' was not declared in this scope
             scaled = operativeAdcMultiplier * ((1000 * AREF_VOLTAGE) / pow(2, BATTERY_SENSE_RESOLUTION_BITS)) * raw;
```

Signed-off-by: Andrew Yong <me@ndoo.sg>
This commit is contained in:
Andrew Yong 2024-04-27 19:17:17 +08:00 committed by GitHub
parent dfcabba0b2
commit f8c3f43ea6
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variants/xiao_ble/variant.h
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@ -181,6 +181,7 @@ static const uint8_t SCL = PIN_WIRE_SCL;
#define BAT_READ \
14 // P0_14 = 14 Reads battery voltage from divider on signal board. (PIN_VBAT is reading voltage divider on XIAO and is
// program pin 32 / or P0.31)
#define BATTERY_SENSE_RESOLUTION_BITS 10
#define CHARGE_LED 23 // P0_17 = 17 D23 YELLOW CHARGE LED
#define HICHG 22 // P0_13 = 13 D22 Charge-select pin for Lipo for 100 mA instead of default 50mA charge