WSAL19310 – Raspberry Pi Pico/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The Raspberry Pi Pico is a microcontroller board featuring the RP2040 chip, 26 GPIO pins and multiple digital interfaces. It can be flashed via drag-and-drop over USB and supports MicroPython as well as C/C++ (pico-sdk) or Arduino IDE.

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Technical overview

• RP2040: dual-core Arm Cortex-M0+ up to 133 MHz, 264 KB SRAM, 2 MB Flash
• 26 multi-function GPIO pins; 2× SPI, 2× I2C, 2× UART, 3× 12-bit ADC, 16 PWM channels
• 8 PIO state machines for custom peripheral emulation
• USB 1.1 device and host; drag-and-drop firmware flashing via mass storage
• Low-power sleep and dormant modes; onboard temperature sensor
• Castellated module: can be soldered directly onto carrier boards
• Development environments: Thonny (MicroPython), VSCode + pico-vscode (C/C++), Arduino IDE
• Firmware flashing: hold BOOT while connecting USB → RMD appears → copy .uf2
• For RP2040/RP2350 boards: press BOOT + RESET together, release RESET first then BOOT
• Sample projects: LED, traffic light, burglar alarm, potentiometer, WS2812, LCD1602-I2C

Commands and examples – verify before use: 

set(PICO_BOARD pico CACHE STRING "Board type")

Notes and version constraints

• The displayed path configurations (cmake, git, ninja, python) apply to the Windows environment; other operating systems require adaptation
• Version-sensitive steps: VSCode v1.87.0+; CMake 3.28.6; Ninja 1.12.1; Python 3.12.1; toolchain 13.2.Rel1 (ARM) or RISCV.13.3 (RISCV)
• CMake files must not contain Chinese characters, otherwise import may fail
• For interference issues: initialize input-state pins with pull-up/pull-down; replace faulty USB cable
• No warranty, certification, or pricing information in the source; these items require separate confirmation

Source and revision record

• Raspberry Pi Pico - Waveshare Wiki
• Source revision: 99897
• Captured: 2026-09-01T04:06:27+00:00
• SHA-256: 105f94f0405d78d4765215f635b7d84e80e163b43845ad29ae7b477907d23ad9