User Guide

ACTIVE low
3
Reserved
IO
GPIO7_0
4
Reserved
IO
GPIO6_7
5 GND
6 3V3
4.8
external communication interface JS13(1.25 spacing)
Pin number
primary function
Alternate Function
1
VCC(3V3 or 5V)
2
I2C2_SDA GPIO4_4
3
I2C2_SCL GPIO4_4
4
GND
5
URAT1_RX GPIO6_0
6
UART1_TX GPIO6_2
4.9
Seventh, SD card external expansion interface JS15(0.5 spacing FPC seat)
Pin number function
1 SD power
2 SDIO_DATA0
3 SDIO_DATA1
4 SDIO_DATA2
5 SDIO_DATA3
6 SDIO_CMD
7 SDIO_DET
8 GND
9 SDIO_CLK
10 GND
11 5V
12
Red light control
13
Blue light control
14
Keystroke
IO