WSAL20187 – RP2040-Zero/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

Concise technical overview of the RP2040-Zero mini development board, its specifications and setup.

Related products at JW Tech

• WSAL20187 – RP2040-Zero, a Pico-like MCU Board Based on Raspberry Pi MCU RP2040, Mini ver.
• WSAL20335 – RP2040-Zero, a Pico-like MCU Board Based on Raspberry Pi MCU RP2040, Mini ver.

Technical overview

• The board uses the RP2040A microcontroller developed by Raspberry Pi, featuring dual Cortex-M0+ cores running up to 133 MHz.
• It includes 264 KB of SRAM and 2 MB of flash memory, plus an on-chip temperature sensor.
• Interfaces include a USB Type-C port, two SPI, two I2C, and two UART channels, four 12-bit ADCs, and 16 PWM channels.
• All unoccupied pins are led out in a compact form factor; 20 pins are accessible via headers, the rest only by soldering.
• Castellated edge processing allows the module to be soldered directly onto carrier boards.
• The device supports USB 1.1 host and device modes as well as drag-and-drop programming over mass storage.
• For MicroPython, Thonny IDE is recommended, with firmware flashed by holding BOOT while connecting to create a removable USB drive.
• For C/C++, the Pico VSCode extension is used; the SDK package must be copied to C:\Users\username\.pico-sdk.

Commands and examples – verify before use: 

set(PICO_BOARD pico CACHE STRING "Board type")

Notes and version constraints

• No power management is present: when using battery power, add a diode to prevent backflow; overcharging or over-discharging can cause damage.
• Only 5 V or 3.3 V can be connected directly; other voltage sources require additional circuitry.
• When manually updating firmware, hold BOOT and RESET simultaneously, releasing RESET first.
• The exact minimum sleep current (about 2 mA) should be verified with the manufacturer for your specific project.
• Missing context about certain versions or updates may affect the steps; please seek human confirmation.

Source and revision record

• RP2040-Zero - Waveshare Wiki
• Source revision: 111008
• Captured: 2026-09-02T03:31:54+00:00
• SHA-256: a1cde8687b83d47a628db439b4e036351ec4c1ac2181ffacd122f805cb204a0e