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Interactive pinout

Raspberry Pi Pico W pinout

The Raspberry Pi Pico W 40-pin layout with the USB port at the top. Physical pin numbers are shown beside the GP names; use the GP number in code.

  • GPIO
  • Power
  • Ground / N.C.
  • Reset
  • Has a warning

Selected pin

GP0GPIO0physical pin 1

Safe to use

GPIOPWMI2CSPIUART

Default UART0 TX.

uart
UART0 TX
i2c
I2C0 SDA
spi
SPI0 RX

Code for this pin

const int PIN = 0;

void setup() {
  pinMode(PIN, OUTPUT);
}

void loop() {
  digitalWrite(PIN, HIGH);
  delay(500);
  digitalWrite(PIN, LOW);
  delay(500);
}
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Good to know

  • ›Every GPIO can do PWM and work with PIO. Only GP26–GP28 can be analog inputs (ADC0–ADC2).
  • ›GP29 (ADC3) is internally wired to measure VSYS/3 — it is not on the headers.
  • ›The on-board LED is on the wireless chip (use Pin("LED") in MicroPython), not GP25.
  • ›GP23, GP24, GP25 and GP29 are used by the Wi-Fi/Bluetooth chip and unavailable.
Full Raspberry Pi Pico W specs ESP32 pins to avoid

Where to buy

Adafruit SparkFun Amazon AliExpress

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