J1
No. Name Type Function
1 GND G Ground
2 3V3 P 3.3 V power supply
3 3V3 P 3.3 V power supply
4 IO2 I/O/T GPIO2, ADC1_CH2, FSPIQ
5 IO3 I/O/T GPIO3, ADC1_CH3
6 GND G Ground
7 RST I CHIP_PU
8 GND G Ground
9 IO0 I/O/T GPIO0, ADC1_CH0, XTAL_32K_P
10 IO1 I/O/T GPIO1, ADC1_CH1, XTAL_32K_N
11 IO10 I/O/T GPIO10, FSPICS0
12 GND G Ground
13 5V P 5 V power supply
14 5V P 5 V power supply
15 GND G Ground
J3
No. Name Type Function
1 GND G Ground
2 TX I/O/T GPIO21, U0TXD
3 RX I/O/T GPIO20, U0RXD
4 GND G Ground