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9f5170a0bc
* Add LilyGO T-Beam 1W support - Add board definition and variant files for ESP32-S3 based T-Beam 1W - Add RF95_FAN_EN support to SX126xInterface for PA cooling fan - Add SX126X_PA_RAMP_US for configurable PA ramp time (800us for 1W PA) - Configure RF switch: DIO2 for PA, GPIO 21 for LNA control * Set TX_GAIN_LORA to 10dB per PR feedback (offset for 1W PA) * Apply suggestion from @Copilot Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Ben Meadors <benmmeadors@gmail.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
// LilyGo T-Beam-1W variant.h
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// Configuration based on LilyGO utilities.h and RF documentation
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// I2C for OLED display (SH1106 at 0x3C)
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#define I2C_SDA 8
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#define I2C_SCL 9
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// GPS - Quectel L76K
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#define GPS_RX_PIN 5
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#define GPS_TX_PIN 6
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#define GPS_1PPS_PIN 7
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#define GPS_WAKEUP_PIN 16 // GPS_EN_PIN in LilyGO code
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#define HAS_GPS 1
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#define GPS_BAUDRATE 9600
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// Buttons
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#define BUTTON_PIN 0 // BUTTON 1
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#define BUTTON_PIN_ALT 17 // BUTTON 2
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// SPI (shared by LoRa and SD)
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#define SPI_MOSI 11
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#define SPI_SCK 13
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#define SPI_MISO 12
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#define SPI_CS 10
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// SD Card
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#define HAS_SDCARD
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#define SDCARD_USE_SPI1
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#define SDCARD_CS SPI_CS
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// LoRa Radio - SX1262 with 1W PA
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#define USE_SX1262
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#define LORA_SCK SPI_SCK
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#define LORA_MISO SPI_MISO
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#define LORA_MOSI SPI_MOSI
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#define LORA_CS 15
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#define LORA_RESET 3
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#define LORA_DIO1 1
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#define LORA_BUSY 38
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// CRITICAL: Radio power enable - MUST be HIGH before lora.begin()!
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// GPIO 40 powers the SX1262 + PA module via LDO
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#define SX126X_POWER_EN 40
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// TX power offset for external PA (0 = no offset, full SX1262 power)
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#define TX_GAIN_LORA 10
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#ifdef USE_SX1262
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#define SX126X_CS LORA_CS
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#define SX126X_DIO1 LORA_DIO1
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#define SX126X_BUSY LORA_BUSY
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#define SX126X_RESET LORA_RESET
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// RF switching configuration for 1W PA module
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// DIO2 controls PA (via SX126X_DIO2_AS_RF_SWITCH)
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// CTRL PIN (GPIO 21) controls LNA - must be HIGH during RX
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// Truth table: DIO2=1,CTRL=0 → TX (PA on, LNA off)
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// DIO2=0,CTRL=1 → RX (PA off, LNA on)
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#define SX126X_DIO2_AS_RF_SWITCH
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#define SX126X_RXEN 21 // LNA enable - HIGH during RX
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// TCXO voltage - required for radio init
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#define SX126X_DIO3_TCXO_VOLTAGE 1.8
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#define SX126X_MAX_POWER 22
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#endif
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// LED
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#define LED_PIN 18
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#define LED_STATE_ON 1 // HIGH = ON
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// Battery ADC
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#define BATTERY_PIN 4
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#define ADC_CHANNEL ADC1_GPIO4_CHANNEL
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#define BATTERY_SENSE_SAMPLES 30
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#define ADC_MULTIPLIER 2.9333
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// NTC temperature sensor
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#define NTC_PIN 14
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// Fan control
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#define FAN_CTRL_PIN 41
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// Meshtastic standard fan control pin macro
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#define RF95_FAN_EN FAN_CTRL_PIN
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// PA Ramp Time - T-Beam 1W requires >800us stabilization (default is 200us)
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// Value 0x05 = RADIOLIB_SX126X_PA_RAMP_800U
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#define SX126X_PA_RAMP_US 0x05
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// Display - SH1106 OLED (128x64)
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#define USE_SH1106
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#define OLED_WIDTH 128
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#define OLED_HEIGHT 64
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// 32768 Hz crystal present
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#define HAS_32768HZ 1
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