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- Add custom partition table for fitting larger firmware - Create LilyGoT3S3Board.h for board-specific functionality - Update all example files to support the T3 board with SX1276 - Configure build environment for optimizing firmware size - Set up the right pin configuration for SX1276 on LilyGo T3pull/62/head
Alex Wolden
1 year ago
7 changed files with 412 additions and 48 deletions
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#pragma once |
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#include <Arduino.h> |
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#include "ESP32Board.h" |
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#include <driver/rtc_io.h> |
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// LoRa radio module pins for LilyGo T3S3
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// These need to be defined here for the SX1276 version
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#if defined(RADIO_CLASS) && defined(CustomSX1276) |
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// SX1276 pin definitions specific to LilyGo T3S3
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#define P_LORA_DIO_0 34 // DIO0 interrupt pin (SX1276 uses DIO0)
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#define P_LORA_DIO_1 33 // DIO1 interrupt pin
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#define P_LORA_NSS 7 // Chip select
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#define P_LORA_RESET 8 // Reset pin
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#define P_LORA_SCLK 5 // SPI clock
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#define P_LORA_MISO 3 // SPI MISO
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#define P_LORA_MOSI 6 // SPI MOSI
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#endif |
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// Base class for LilyGo T-series boards
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class LilyGoTBoard : public ESP32Board { |
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public: |
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void begin() { |
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ESP32Board::begin(); |
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esp_reset_reason_t reason = esp_reset_reason(); |
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if (reason == ESP_RST_DEEPSLEEP) { |
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long wakeup_source = esp_sleep_get_ext1_wakeup_status(); |
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if (wakeup_source & (1 << P_LORA_DIO_1)) { // received a LoRa packet (while in deep sleep)
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startup_reason = BD_STARTUP_RX_PACKET; |
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} |
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rtc_gpio_hold_dis((gpio_num_t)P_LORA_NSS); |
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rtc_gpio_deinit((gpio_num_t)P_LORA_DIO_1); |
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} |
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} |
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void enterDeepSleep(uint32_t secs, int pin_wake_btn = -1) { |
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esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON); |
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// Make sure the DIO1 and NSS GPIOs are hold on required levels during deep sleep
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rtc_gpio_set_direction((gpio_num_t)P_LORA_DIO_1, RTC_GPIO_MODE_INPUT_ONLY); |
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rtc_gpio_pulldown_en((gpio_num_t)P_LORA_DIO_1); |
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rtc_gpio_hold_en((gpio_num_t)P_LORA_NSS); |
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if (pin_wake_btn < 0) { |
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esp_sleep_enable_ext1_wakeup( (1L << P_LORA_DIO_1), ESP_EXT1_WAKEUP_ANY_HIGH); // wake up on: recv LoRa packet
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} else { |
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esp_sleep_enable_ext1_wakeup( (1L << P_LORA_DIO_1) | (1L << pin_wake_btn), ESP_EXT1_WAKEUP_ANY_HIGH); // wake up on: recv LoRa packet OR wake btn
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} |
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if (secs > 0) { |
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esp_sleep_enable_timer_wakeup(secs * 1000000); |
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} |
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// Finally set ESP32 into sleep
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esp_deep_sleep_start(); // CPU halts here and never returns!
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} |
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uint16_t getBattMilliVolts() override { |
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analogReadResolution(12); |
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uint32_t raw = 0; |
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for (int i = 0; i < 8; i++) { |
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raw += analogReadMilliVolts(PIN_VBAT_READ); |
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} |
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raw = raw / 8; |
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return (2 * raw); |
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} |
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}; |
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// Standard ESP32 version (for T3 board)
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class LilyGoT3Board : public LilyGoTBoard { |
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public: |
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const char* getManufacturerName() const override { |
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return "LilyGo T3"; |
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} |
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}; |
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// For S3 variant
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class LilyGoT3S3Board : public LilyGoTBoard { |
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public: |
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const char* getManufacturerName() const override { |
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return "LilyGo T3S3"; |
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} |
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}; |
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