bradleyfalzon / LilyGO-T-Beam

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TTGO-T-Beam

PinOut

Pins T_BEAM(AXP192) T_BEAM_V07
LORA_SCK 5 5
LORA_MISO 19 19
LORA_MOSI 27 27
LORA_SS 18 18
LORA_DIO0 26 26
LORA_DIO1 33 33
LORA_DIO2 32 32
LORA_RST 23 23
GPS_RX_PIN 34 12
GPS_TX_PIN 12 15
I2C_SDA 21 21
I2C_SCL 22 22
PMU_IRQ 35 N/A
USER BUTTON 36 N/A

Power Control Channel

Modules T_BEAM_V10/V1.1 T_BEAM_V07
GPS LDO3 No supoort
LORA LDO2 No supoort
OLED DCDC1 No supoort

Button Map

USB BTN1 BTN2 BTN3
N/A axp192 powerkey user button reset

Button Function:

  • Click button 2 will cycle the user function, the default start to enable GPS positioning, the second click will be set to lora send, the third click will be set to lora receive, long press for two seconds and then release, will enter deep sleep

About OLED:

  • The boot will scan the I2C device. If the OLED is found, all log information will be displayed in the OLED. If not, it will be printed on the serial port.

How to use

  • For dependencies on other files please see platformio.ini
  • Regarding the board, you can modify the board version and lora frequency in board_def.h
  • If you use the Arduino IDE for compilation, please store board_def.h and LilyGO-T-Beam.ino in the same directory, and the directory folder name must be the same as ino

Deepsleep

  • Regarding deep sleep, except for DCDC3, power off all channels of AXP192, the current consumption is about 580μA

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