Pinout

Pin Number	Pin Name	Type	Function Description
1	3V3	P	3.3 V Power
2	3V3	P	3.3 V Power
3	RST	I	Reset Pin
4	GPIO4	I/O/T	RTC GPIO 4, GPIO 4, TOUCH 4, ADC1_CH3
5	GPIO5	I/O/T	RTC GPIO 5, GPIO 5, TOUCH 5, ADC1_CH4
6	GPIO6	I/O/T	RTC GPIO 6, GPIO 6, TOUCH 6, ADC1_CH5
7	GPIO7	I/O/T	RTC GPIO 7, GPIO 7, TOUCH 7, ADC1_CH6
8	GPIO15	I/O/T	RTC GPIO 15, GPIO 15, U0RTS, ADC2_CH4
9	GPIO16	I/O/T	RTC GPIO 16, GPIO 16, U0CTS, ADC2_CH5
10	GPIO17	I/O/T	RTC GPIO 17, GPIO 17, U1TXD, ADC2_CH6
11	GPIO18	I/O/T	RTC GPIO 18, GPIO 18, U1RXD, ADC2_CH7
12	GPIO8	I/O/T	RTC GPIO 8, GPIO 8, TOUCH 8, ADC1_CH7
13	GPIO3	I/O/T	RTC GPIO 3, GPIO 3, TOUCH 3, ADC1_CH2
14	GPIO46	I/O/T	GPIO 46
15	GPIO9	I/O/T	RTC GPIO 9, GPIO 9, TOUCH 9, ADC1_CH8
16	GPIO10	I/O/T	RTC GPIO 10, GPIO 10, TOUCH 10, ADC1_CH9
17	GPIO11	I/O/T	RTC GPIO 11, GPIO 11, ADC2_CH0
18	GPIO12	I/O/T	RTC GPIO 12, GPIO 12, ADC2_CH1
19	GPIO13	I/O/T	RTC GPIO 13, GPIO 13, ADC2_CH2
20	GPIO14	I/O/T	RTC GPIO 14, GPIO 14, ADC2_CH3
21	5V	P	5 V Power
22	GND	G	Ground

J3 Pin Header Definitions

Pin Number	Pin Name	Type	Function Description
1	GND	G	Ground
2	TX	I/O/T	U0TXD, GPIO 43, CLK_OUT1
3	RX	I/O/T	U0RXD, GPIO 44, CLK_OUT2
4	GPIO1	I/O/T	RTC GPIO 1, GPIO 1, TOUCH 1, ADC1_CH0
5	GPIO2	I/O/T	RTC GPIO 2, GPIO 2, TOUCH 2, ADC1_CH1
6	GPIO42	I/O/T	MTMS, GPIO 42
7	GPIO41	I/O/T	MTDI, GPIO 41
8	GPIO40	I/O/T	MTDO, GPIO 40
9	GPIO39	I/O/T	MTCK, GPIO 39, CLK_OUT3
10	GPIO38	I/O/T	FSPIWP, GPIO 38, RGB LED
11	GPIO37	I/O/T	SPIDQS, GPIO 37, FSPIQ
12	GPIO36	I/O/T	SPIIO7, GPIO 36, FSPICLK
13	GPIO35	I/O/T	SPIIO6, GPIO 35, FSPID
14	GPIO0	I/O/T	RTC GPIO 0, GPIO 0
15	GPIO45	I/O/T	GPIO 45
16	GPIO48	I/O/T	GPIO 48, SPICLK_N
17	GPIO47	I/O/T	GPIO 47, SPICLK_P
18	GPIO21	I/O/T	RTC GPIO 21, GPIO 21
19	GPIO20	I/O/T	RTC GPIO 20, GPIO 20
20	GPIO19	I/O/T	RTC GPIO 19, GPIO 19
21	GND	G	Ground
22	GND	G	Ground