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meshcore-simple-sensor/variants/lilygo_tbeam_1w/TBeam1WBoard.cpp
UA1ZBE 42f55e12ae
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Initial commit: Simple Sensor firmware for Heltec T114 with BME280
- MeshCore-based Simple Sensor firmware
- Heltec T114 without display
- BME280 sensor support (temp/humidity/pressure)
- Radio: 868.856018 MHz, SF7, BW62.5 kHz, CR4/7
- 2-byte path hash
- PlatformIO project
2026-06-01 16:19:09 +03:00

72 lines
1.9 KiB
C++

#include "TBeam1WBoard.h"
void TBeam1WBoard::begin() {
ESP32Board::begin();
// Power on radio module (must be done before radio init)
pinMode(SX126X_POWER_EN, OUTPUT);
digitalWrite(SX126X_POWER_EN, HIGH);
radio_powered = true;
delay(10); // Allow radio to power up
// RF switch RXEN pin handled by RadioLib via setRfSwitchPins()
// Initialize LED
pinMode(LED_PIN, OUTPUT);
digitalWrite(LED_PIN, LOW);
// Initialize fan control (on by default - 1W PA can overheat)
pinMode(FAN_CTRL_PIN, OUTPUT);
digitalWrite(FAN_CTRL_PIN, HIGH);
}
void TBeam1WBoard::onBeforeTransmit() {
// RF switching handled by RadioLib via SX126X_DIO2_AS_RF_SWITCH and setRfSwitchPins()
digitalWrite(LED_PIN, HIGH); // TX LED on
}
void TBeam1WBoard::onAfterTransmit() {
digitalWrite(LED_PIN, LOW); // TX LED off
}
uint16_t TBeam1WBoard::getBattMilliVolts() {
// T-Beam 1W uses 7.4V battery with voltage divider
// ADC reads through divider - adjust multiplier based on actual divider ratio
analogReadResolution(12);
uint32_t raw = 0;
for (int i = 0; i < 8; i++) {
raw += analogRead(BATTERY_PIN);
}
raw = raw / 8;
// Assuming voltage divider ratio from ADC_MULTIPLIER
// 3.3V reference, 12-bit ADC (4095 max)
return static_cast<uint16_t>((raw * 3300 * ADC_MULTIPLIER) / 4095);
}
const char* TBeam1WBoard::getManufacturerName() const {
return "LilyGo T-Beam 1W";
}
void TBeam1WBoard::powerOff() {
// Turn off radio LNA (CTRL pin must be LOW when not receiving)
digitalWrite(SX126X_RXEN, LOW);
// Turn off radio power
digitalWrite(SX126X_POWER_EN, LOW);
radio_powered = false;
// Turn off LED and fan
digitalWrite(LED_PIN, LOW);
digitalWrite(FAN_CTRL_PIN, LOW);
ESP32Board::powerOff();
}
void TBeam1WBoard::setFanEnabled(bool enabled) {
digitalWrite(FAN_CTRL_PIN, enabled ? HIGH : LOW);
}
bool TBeam1WBoard::isFanEnabled() const {
return digitalRead(FAN_CTRL_PIN) == HIGH;
}