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28 lines
693 B
28 lines
693 B
#include <Arduino.h>
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#include "ThinkNodeM3Board.h"
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#include <Wire.h>
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#include <bluefruit.h>
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void ThinkNodeM3Board::begin() {
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NRF52Board::begin();
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btn_prev_state = HIGH;
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Wire.begin();
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delay(10); // give sx1262 some time to power up
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}
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uint16_t ThinkNodeM3Board::getBattMilliVolts() {
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int adcvalue = 0;
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analogReference(AR_INTERNAL_2_4);
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analogReadResolution(ADC_RESOLUTION);
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delay(10);
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// ADC range is 0..2400mV and resolution is 12-bit (0..4095)
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adcvalue = analogRead(PIN_VBAT_READ);
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// Convert the raw value to compensated mv, taking the resistor-
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// divider into account (providing the actual LIPO voltage)
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return (uint16_t)((float)adcvalue * ADC_FACTOR);
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}
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