#include "HeltecV4Board.h" void HeltecV4Board::begin() { ESP32Board::begin(); pinMode(PIN_ADC_CTRL, OUTPUT); digitalWrite(PIN_ADC_CTRL, LOW); // Initially inactive loRaFEMControl.init(); periph_power.begin(); esp_reset_reason_t reason = esp_reset_reason(); if (reason == ESP_RST_DEEPSLEEP) { long wakeup_source = esp_sleep_get_ext1_wakeup_status(); if (wakeup_source & (1 << P_LORA_DIO_1)) { // received a LoRa packet (while in deep sleep) startup_reason = BD_STARTUP_RX_PACKET; } rtc_gpio_hold_dis((gpio_num_t)P_LORA_NSS); rtc_gpio_deinit((gpio_num_t)P_LORA_DIO_1); } } void HeltecV4Board::onBeforeTransmit(void) { digitalWrite(P_LORA_TX_LED, HIGH); // turn TX LED on loRaFEMControl.setTxModeEnable(); } void HeltecV4Board::onAfterTransmit(void) { digitalWrite(P_LORA_TX_LED, LOW); // turn TX LED off loRaFEMControl.setRxModeEnable(); } void HeltecV4Board::powerOff() { // Turn off PA digitalWrite(P_LORA_PA_POWER, LOW); rtc_gpio_hold_en((gpio_num_t)P_LORA_PA_POWER); ESP32Board::powerOff(); } uint16_t HeltecV4Board::getBattMilliVolts() { analogReadResolution(10); digitalWrite(PIN_ADC_CTRL, HIGH); delay(10); uint32_t raw = 0; for (int i = 0; i < 8; i++) { raw += analogRead(PIN_VBAT_READ); } raw = raw / 8; digitalWrite(PIN_ADC_CTRL, LOW); return (adc_mult * (3.3 / 1024.0) * raw) * 1000; } const char* HeltecV4Board::getManufacturerName() const { #ifdef HELTEC_LORA_V4_TFT return loRaFEMControl.getFEMType() == KCT8103L_PA ? "Heltec V4.3 TFT" : "Heltec V4 TFT"; #else return loRaFEMControl.getFEMType() == KCT8103L_PA ? "Heltec V4.3 OLED" : "Heltec V4 OLED"; #endif } bool HeltecV4Board::setLoRaFemLnaEnabled(bool enable) { if (!loRaFEMControl.isLnaCanControl()) { return false; } loRaFEMControl.setLNAEnable(enable); loRaFEMControl.setRxModeEnable(); return true; } bool HeltecV4Board::canControlLoRaFemLna() const { return loRaFEMControl.isLnaCanControl(); } bool HeltecV4Board::isLoRaFemLnaEnabled() const { return loRaFEMControl.isLNAEnabled(); }