12 lines
250 B
Arduino
12 lines
250 B
Arduino
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#include <Arduino.h>
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#define ADC_AREF 3.3f
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#define BATVOLT_R1 2.0f
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#define BATVOLT_R2 2.0f
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#define BATVOLT_PIN BAT_VOLT
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int getBattery()
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{
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return ((ADC_AREF / 1.023) * (BATVOLT_R1 + BATVOLT_R2) / BATVOLT_R2 * (float)analogRead(BATVOLT_PIN));
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}
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