Logical pinout · physical placement not verified

Pins 1–40

Pins 41–53

ENCHIP_PU8
EN/CHIP_PU
Type · Control
GPIO0ADC1_CH0XTAL_32K_P12
GPIO0/ADC1_CH0/XTAL_32K_P
Type · GPIO, Signal
GPIO1ADC1_CH1XTAL_32K_N13
GPIO1/ADC1_CH1/XTAL_32K_N
Type · GPIO, Signal
GPIO2ADC1_CH25
GPIO2/ADC1_CH2
Type · GPIO, Signal
GPIO3ADC1_CH36
GPIO3/ADC1_CH3
Type · GPIO, Signal
GPIO4MTMSADC1_CH49
MTMS/GPIO4/ADC1_CH4
Type · GPIO, Signal
GPIO5MTDIADC1_CH510
MTDI/GPIO5/ADC1_CH5
Type · GPIO, Signal
GPIO6MTCKADC1_CH615
MTCK/GPIO6/ADC1_CH6
Type · GPIO, Signal
GPIO7MTDO16
MTDO/GPIO7
Type · GPIO, Signal
NC4
NC
Type · Control
NC7
NC
Type · Control
NC21
NC
Type · Control
NC32
NC
Type · Control
NC33
NC
Type · Control
NC34
NC
Type · Control
NC35
NC
Type · Control
3V33
3V3
Type · Power
GND1
GND
Type · Ground
GND11
GND
Type · Ground
GND14
GND
Type · Ground
GND2
GND
Type · Ground
GND36
GND
Type · Ground
GND37
GND
Type · Ground
GND38
GND
Type · Ground
GND39
GND
Type · Ground
GND40
GND
Type · Ground
GND41
GND
Type · Ground
GND42
GND
Type · Ground
GND43
GND
Type · Ground
GND44
GND
Type · Ground
GND45
GND
Type · Ground
GND46
GND
Type · Ground
GND47
GND
Type · Ground
GND48
GND
Type · Ground
GND49
GND
Type · Ground
GND50
GND
Type · Ground
GND51
GND
Type · Ground
GND52
GND
Type · Ground
GND53
GND
Type · Ground
GPIO16U0TXD31
U0TXD/GPIO16
Type · GPIO, Signal
GPIO17U0RXD30
U0RXD/GPIO17
Type · GPIO, Signal
GPIO13USB_D+18
GPIO13/USB_D+
Type · GPIO, Signal
GPIO12USB_D-17
GPIO12/USB_D-
Type · GPIO, Signal
GPIO822
GPIO8
Type · GPIO
GPIO923
GPIO9
Type · GPIO
GPIO1419
GPIO14
Type · GPIO
GPIO1520
GPIO15
Type · GPIO
GPIO1824
GPIO18
Type · GPIO
GPIO1925
GPIO19
Type · GPIO
GPIO2026
GPIO20
Type · GPIO
GPIO2127
GPIO21
Type · GPIO
GPIO2228
GPIO22
Type · GPIO
GPIO2329
GPIO23
Type · GPIO

Pin	Position	Type	Function
ENCHIP_PU	8	Control	EN/CHIP_PU
GPIO0ADC1_CH0XTAL_32K_P	12	GPIO, Signal	GPIO0/ADC1_CH0/XTAL_32K_P
GPIO1ADC1_CH1XTAL_32K_N	13	GPIO, Signal	GPIO1/ADC1_CH1/XTAL_32K_N
GPIO2ADC1_CH2	5	GPIO, Signal	GPIO2/ADC1_CH2
GPIO3ADC1_CH3	6	GPIO, Signal	GPIO3/ADC1_CH3
GPIO4MTMSADC1_CH4	9	GPIO, Signal	MTMS/GPIO4/ADC1_CH4
GPIO5MTDIADC1_CH5	10	GPIO, Signal	MTDI/GPIO5/ADC1_CH5
GPIO6MTCKADC1_CH6	15	GPIO, Signal	MTCK/GPIO6/ADC1_CH6
GPIO7MTDO	16	GPIO, Signal	MTDO/GPIO7
NC	4	Control	NC
NC	7	Control	NC
NC	21	Control	NC
NC	32	Control	NC
NC	33	Control	NC
NC	34	Control	NC
NC	35	Control	NC
3V3	3	Power	3V3
GND	1	Ground	GND
GND	11	Ground	GND
GND	14	Ground	GND
GND	2	Ground	GND
GND	36	Ground	GND
GND	37	Ground	GND
GND	38	Ground	GND
GND	39	Ground	GND
GND	40	Ground	GND
GND	41	Ground	GND
GND	42	Ground	GND
GND	43	Ground	GND
GND	44	Ground	GND
GND	45	Ground	GND
GND	46	Ground	GND
GND	47	Ground	GND
GND	48	Ground	GND
GND	49	Ground	GND
GND	50	Ground	GND
GND	51	Ground	GND
GND	52	Ground	GND
GND	53	Ground	GND
GPIO16U0TXD	31	GPIO, Signal	U0TXD/GPIO16
GPIO17U0RXD	30	GPIO, Signal	U0RXD/GPIO17
GPIO13USB_D+	18	GPIO, Signal	GPIO13/USB_D+
GPIO12USB_D-	17	GPIO, Signal	GPIO12/USB_D-
GPIO8	22	GPIO	GPIO8
GPIO9	23	GPIO	GPIO9
GPIO14	19	GPIO	GPIO14
GPIO15	20	GPIO	GPIO15
GPIO18	24	GPIO	GPIO18
GPIO19	25	GPIO	GPIO19
GPIO20	26	GPIO	GPIO20
GPIO21	27	GPIO	GPIO21
GPIO22	28	GPIO	GPIO22
GPIO23	29	GPIO	GPIO23

Logical pinout · physical placement not verified

Logical bank 1

Logical bank 2

Pin details

53 connections

ENCHIP_PU
EN/CHIP_PU
Control
8
GPIO0ADC1_CH0XTAL_32K_P
GPIO0/ADC1_CH0/XTAL_32K_P
GPIO, Signal
12
GPIO1ADC1_CH1XTAL_32K_N
GPIO1/ADC1_CH1/XTAL_32K_N
GPIO, Signal
13
GPIO2ADC1_CH2
GPIO2/ADC1_CH2
GPIO, Signal
5
GPIO3ADC1_CH3
GPIO3/ADC1_CH3
GPIO, Signal
6
GPIO4MTMSADC1_CH4
MTMS/GPIO4/ADC1_CH4
GPIO, Signal
9
GPIO5MTDIADC1_CH5
MTDI/GPIO5/ADC1_CH5
GPIO, Signal
10
GPIO6MTCKADC1_CH6
MTCK/GPIO6/ADC1_CH6
GPIO, Signal
15
GPIO7MTDO
MTDO/GPIO7
GPIO, Signal
16
NC
NC
Control
4
NC
NC
Control
7
NC
NC
Control
21
NC
NC
Control
32
NC
NC
Control
33
NC
NC
Control
34
NC
NC
Control
35
3V3
3V3
Power
3
GND
GND
Ground
1
GND
GND
Ground
11
GND
GND
Ground
14
GND
GND
Ground
2
GND
GND
Ground
36
GND
GND
Ground
37
GND
GND
Ground
38
GND
GND
Ground
39
GND
GND
Ground
40
GND
GND
Ground
41
GND
GND
Ground
42
GND
GND
Ground
43
GND
GND
Ground
44
GND
GND
Ground
45
GND
GND
Ground
46
GND
GND
Ground
47
GND
GND
Ground
48
GND
GND
Ground
49
GND
GND
Ground
50
GND
GND
Ground
51
GND
GND
Ground
52
GND
GND
Ground
53
GPIO16U0TXD
U0TXD/GPIO16
GPIO, Signal
31
GPIO17U0RXD
U0RXD/GPIO17
GPIO, Signal
30
GPIO13USB_D+
GPIO13/USB_D+
GPIO, Signal
18
GPIO12USB_D-
GPIO12/USB_D-
GPIO, Signal
17
GPIO8
GPIO8
GPIO
22
GPIO9
GPIO9
GPIO
23
GPIO14
GPIO14
GPIO
19
GPIO15
GPIO15
GPIO
20
GPIO18
GPIO18
GPIO
24
GPIO19
GPIO19
GPIO
25
GPIO20
GPIO20
GPIO
26
GPIO21
GPIO21
GPIO
27
GPIO22
GPIO22
GPIO
28
GPIO23
GPIO23
GPIO
29

ESP32

158 other options

Wi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.

View all 158

Related groups

4 groups

Arduino

About 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.

Boards · Arduino boards · 77 parts

Add-ons

About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.

Boards · HATs, Shields & add-ons · 270 parts

Other MCUs

Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.

Boards · Other MCU boards · 229 parts

Pi Pico

The Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.

Boards · Pico & RP2040 boards · 43 parts

Pinout

Pin details

Arduino

Add-ons

Other MCUs

Pi Pico