mikecarper
ab6412e73c
Add meter-reference calibration with saved ADC corrections, checked persistence and rollback. Preserve existing board coefficients and nRF52 voltage policy, and merge the Mini Repeater feature gates. Validation: 69 focused tests, hosted documentation checks, and four firmware builds passed. Mini Repeater retains calibration and its existing filesystem with 376 flash bytes free; earlier Mini Sensor size failures remain documented.
31 lines
976 B
C++
31 lines
976 B
C++
#include "ThinknodeM2Board.h"
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void ThinknodeM2Board::begin() {
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pinMode(PIN_VEXT_EN, OUTPUT);
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digitalWrite(PIN_VEXT_EN, !PIN_VEXT_EN_ACTIVE); // force power cycle
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delay(20); // allow power rail to discharge
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digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE); // turn backlight back on
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delay(120); // give display time to bias on cold boot
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ESP32Board::begin();
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pinMode(PIN_STATUS_LED, OUTPUT); // init power led
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}
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uint16_t ThinknodeM2Board::getBattMilliVolts() {
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analogReadResolution(12);
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analogSetPinAttenuation(PIN_VBAT_READ, ADC_11db);
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uint32_t mv = 0;
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for (int i = 0; i < 8; ++i) {
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mv += analogReadMilliVolts(PIN_VBAT_READ);
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delayMicroseconds(200);
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}
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mv /= 8;
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analogReadResolution(10);
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return calibrateBatteryMillivolts(static_cast<uint16_t>(mv * ADC_MULTIPLIER));
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}
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const char *ThinknodeM2Board::getManufacturerName() const {
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return "Elecrow ThinkNode M2";
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}
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