Raspberry Pi Pico
Pinout Diagram

Pico Circuit

The Pico has 2 each of the following peripherals,
  • UART
  • SPI
  • I2C

There are 8 PWM 'slices', each with two channels.

A maximum of 300ma is accessible via the 3V3 out pin.

  • VBUS - The voltage from the micro-USB port. This will be 0V if it is not connected, generally 5V if connected.
  • VSYS - The main system input voltage, 1.8V to 5.5V.
  • 3V3_EN - Pull this pin low to disable the 3.3V pin.
  • A_VREF - This is the reference voltage for the ADC.
  • AGND - A separate GND for the ADC pins.
  • RUN - Enable pin for the RP2040. Connect to GND to reset the Pico.