RP2040

Welcome to RP2040, a microcontroller designed here at Raspberry Pi.

Whether you have a Raspberry Pi Pico or another RP2040-based microcontroller board, everything you need to get started is here. You’ll find support for getting started with C/C++ or MicroPython on Raspberry Pi Pico, and links to resources for other boards that use RP2040. There are also links to the technical documentation for both the Raspberry Pi Pico microcontroller board and our RP2040 microcontroller chip.

RP2040 is the debut microcontroller from Raspberry Pi. It brings our signature values of high performance, low cost, and ease of use to the microcontroller space.

With a large on-chip memory, symmetric dual-core processor complex, deterministic bus fabric, and rich peripheral set augmented with our unique Programmable I/O (PIO) subsystem, it provides professional users with unrivalled power and flexibility. With detailed documentation, a polished MicroPython port, and a UF2 bootloader in ROM, it has the lowest possible barrier to entry for beginner and hobbyist users.

RP2040 is a stateless device, with support for cached execute-in-place from external QSPI memory. This design decision allows you to choose the appropriate density of non-volatile storage for your application, and to benefit from the low pricing of commodity Flash parts.

RP2040 is manufactured on a modern 40nm process node, delivering high performance, low dynamic power consumption, and low leakage, with a variety of low-power modes to support extended-duration operation on battery power

Key features:

The internal temperature sensor in the RP2040 package is a low-resolution sensor that needs to be user-calibrated to be useful to any degree of accuracy.

A crucial part of accurately determining the temperature measured is knowing the ADC VREF voltage. The conversion formula means that small errors in the ADC VREF voltage can give quite large discrepancies in temperature calculated. The RP2040 doesn’t have an internal Fixed Voltage Reference which can be used to determine VREF voltage so VREF voltage needs to be measured manually - with the caveat it could change - or an external Fixed Voltage Reference needs to be provided.

See Chapter 4, section 4.9.5 of the RP2040 Datasheet for further details of the internal temperature sensor.

Documentation for Raspberry Pi Pico and other RP2040-based boards.

Designed by Raspberry Pi as both a development board, and as a reference design, the Raspberry Pi Pico series is a family of RP2040-based boards. The Pico family currently consists of Raspberry Pi Pico (far left), Pico H (left), Pico W (right), and Pico WH (far right).

The design files for Raspberry Pi Pico and Pico W are available openly, with no limitations.

Permission to use, copy, modify, and/or distribute this design for any purpose with or without fee is hereby granted.

THE DESIGN IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS DESIGN INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS DESIGN.