mirror of
https://github.com/meshtastic/firmware.git
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63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
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// LED - status indication
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#define LED_PIN 37
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// Button - user interface
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#define BUTTON_PIN 0 // This is the BOOT button, and it has its own pull-up resistor
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// SD card - TODO: test, currently untested, copied from T3S3 variant
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#define HAS_SDCARD
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#define SDCARD_USE_SPI1
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// TODO: rename this to make this SD-card specific
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#define SPI_CS 13
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#define SPI_SCK 14
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#define SPI_MOSI 11
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#define SPI_MISO 2
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// FIXME: there are two other SPI pins that are not defined here
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// Compatibility
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#define SDCARD_CS SPI_CS
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// Battery voltage monitoring - TODO: test, currently untested, copied from T3S3 variant
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#define BATTERY_PIN 1 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
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#define ADC_CHANNEL ADC1_GPIO1_CHANNEL
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#define ADC_MULTIPLIER \
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2.11 // ratio of voltage divider = 2.0 (R10=1M, R13=1M), plus some undervoltage correction - TODO: this was carried over from
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// the T3S3, test to see if the undervoltage correction is needed.
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// Display - OLED connected via I2C by the default hardware configuration
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#define HAS_SCREEN 1
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#define USE_SSD1306
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#define I2C_SCL 17
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#define I2C_SDA 18
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// UART - The 1mm JST SH connector closest to the USB-C port
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#define UART_TX 43
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#define UART_RX 44
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// Peripheral I2C - The 1mm JST SH connector furthest from the USB-C port which follows Adafruit connection standard. There are no
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// pull-up resistors on these lines, the downstream device needs to include them. TODO: test, currently untested
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#define I2C_SCL1 21
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#define I2C_SDA1 10
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// Radio
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#define USE_SX1262 // CDEBYTE EoRa-S3-900TB <- CDEBYTE E22-900MM22S <- Semtech SX1262
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#define USE_SX1268 // CDEBYTE EoRa-S3-400TB <- CDEBYTE E22-400MM22S <- Semtech SX1268
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#define SX126X_CS 7
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#define LORA_SCK 5
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#define LORA_MOSI 6
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#define LORA_MISO 3
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#define SX126X_RESET 8
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#define SX126X_BUSY 34
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#define SX126X_DIO1 33
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#define SX126X_DIO2_AS_RF_SWITCH // All switching is performed with DIO2, it is automatically inverted using circuitry.
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// CDEBYTE EoRa-S3 uses an XTAL, thus we do not need DIO3 as TCXO voltage reference. Don't define SX126X_DIO3_TCXO_VOLTAGE for
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// simplicity rather than defining it as 0.
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#define SX126X_MAX_POWER \
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22 // E22-900MM22S and E22-400MM22S have a raw SX1262 or SX1268 respsectively, they are rated to output up and including 22
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// dBm out of their SX126x IC.
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// Compatibility with old variant.h file structure - FIXME: this should be done in the respective radio interface modules to clean
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// up all variants.
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#define LORA_CS SX126X_CS
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#define LORA_DIO1 SX126X_DIO1
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