Pin Out

PIN	Board Label	Description
0	TRACKBALL_CLICK	Trackball Button Press (BOOT)
1	TRACKBALL_LEFT	Trackball Left
2	TRACKBALL_RIGHT	Trackball Right
3	TRACKBALL_UP	Trackball Up
4	BAT_ADC	Battery Input
5	SPEAKER_WS	Speaker Word Select/Left-Right Clock
6	SPEAKER_DOUT	Speaker Serial Data
7	SPEAKER_SCK	Speaker Serial Clock/Bit Clock
8	SCL	I2C Serial Clock
9	LORA_CS	LoRa Chip Select
10	POWER_ON	Power for peripherals (On by default)
11	TFT_DC	Display Commands
12	TFT_CS	Display Chip Select
13	LORA_BUSY	LoRa Busy
14	MICROPHONE_DIN	Microphone Serial Data
15	TRACKBALL_DOWN	Trackball Down
16	TOUCH_INT	Touchscreen Interrupt
17	LORA_RST	LoRa Reset
18	SDA	I2C Serial Data
19	N/A	USB DM/D- (ESP32 Only)
20	N/A	USB DP/D+ (ESP32 Only)
21	MICROPHONE_WS	Microphone Word Select/Left-Right Clock
35	N/A	Unused
36	N/A	Unused
37	N/A	Unused
38	MISO	SPI Main In Sub Out
39	SDCARD_CS	SD Card Chip Select
40	CLK	SPI Serial Clock
41	MOSI	SPI Main Out Sub In
42	TFT_BKLT	Display Backlight
43	TX	UART Transmit
44	RX	UART Receive
45	LORA_DIO1	LoRa Interrupt
46	KEYBOARD_INT	Keyboard Interrupt
47	MICROPHONE_SCK	Microphone Serial Clock
48	MICROPHONE_MCK	Microphone Master Clock
N/A	UART	Returns UART Object
N/A	SPI	Returns SPI Object
N/A	I2C	Returns I2C Object
N/A	DISPLAY	Returns Display Object