32 lines
732 B
C++
32 lines
732 B
C++
#include <Arduino.h>
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#include <Wire.h>
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#include "TechoBoard.h"
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#ifdef LILYGO_TECHO
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void TechoBoard::begin() {
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NRF52BoardDCDC::begin();
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Wire.begin();
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pinMode(SX126X_POWER_EN, OUTPUT);
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digitalWrite(SX126X_POWER_EN, HIGH);
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delay(10); // give sx1262 some time to power up
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}
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uint16_t TechoBoard::getBattMilliVolts() {
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int adcvalue = 0;
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analogReference(AR_INTERNAL_3_0);
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analogReadResolution(12);
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delay(10);
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// ADC range is 0..3000mV 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 * REAL_VBAT_MV_PER_LSB);
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}
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#endif
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