1.Pinout table

Peripherals	2019/TOUCH	2019/NO TOUCH	T BLOCK	T-Watch2020 V1
Core	ESP32-DOWDQ6	ESP32-DOWDQ6	ESP32-DOWDQ6	ESP32-DOWDQ6
Flash	16MB	16MB	16MB	16MB
SPRAM	8MB	8MB	8MB	8MB
TOUCH Driver	FT6236	N/A	N/A	FT6236
TFT Driver	ST7789	ST7789	N/A	ST7789
TFT Size	240x240/1.54	240x240/1.54	N/A	240x240/1.54
TFT RST	N/A	N/A	N/A	N/A
TFT MISO	N/A	N/A	N/A	N/A
TFT MOSI	19	19	N/A	19
TFT SCLK	18	18	N/A	18
TFT DC	27	27	N/A	27
TFT CS	5	5	N/A	5
SENSOR SDA[3]	21	21	21	21
SENSOR SCL[3]	22	22	22	22
FT6236 SDA	23	N/A	N/A	23
FT6236 SCL	32	N/A	N/A	32
MOTOR	N/A[1]	N/A[1]	N/A[1]	4
BMA423 Interrupt	39	N/A	N/A	39
FT6236 Interrupt	38	38[2]	N/A	38
PCF8563 Interrupt	37	37	37	37
BUTTON	36	36	36	N/A
AXP192 Interrupt	35	35	35	35
I2S BCK	N/A[1]	N/A[1]	N/A[1]	26
I2S WS	N/A[1]	N/A[1]	N/A[1]	25
I2S DOUT	N/A[1]	N/A[1]	N/A[1]	33
IR Send	N/A	N/A	N/A	13

[1]. According to different base plates

[2]. Capacitive touch button

[3]. SENSOR SDA and SCL share PCF8563, BMA423, AXP192,T-Block without BMA423, use MPU6050

[4]. T-Watch2020 V1, Audio audio power domain is controlled by AXP202 LDO3

2. Bottom plate Pinout(The following does not apply to T-Watch2020)

Standard

ESP32 Core	GPIO33	GPIO25	GPIO21	GPIO22
Standard	Motor	Speaker	SDA	SCL

SIM800L

ESP32 Core	GPIO14	GPIO15	GPIO4	GPIO33	GPIO34
SIM800L	RST	PWRKEY	BOOST_CTRL	TX	RX

SIM868

ESP32 Core	GPIO33	GPIO34
SIM868	TX	RX

MPR121

ESP32 Core	GPIO21	GPIO22
MPR121	SDA	SCL

S7XG_Lora & GPS

ESP32 Core	GPIO33	GPIO34
S7XG_Lora	TX	RX