RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit [1] [2] [3] by Raspberry Pi Ltd. In January 2021, it was released as part of the Raspberry Pi Pico board. [1] Its successor is the RP2350 series.
RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit [1] [2] [3] by Raspberry Pi Ltd. In January 2021, it was released as part of the Raspberry Pi Pico board. [1] Its successor is the RP2350 series.
Announced on 21 January 2021, the RP2040 is the first microcontroller designed by Raspberry Pi Ltd. [1] [2] The microcontroller is low cost, with the Raspberry Pi Pico being introduced at US$4 and the RP2040 itself costing US$1. The microcontroller can be programmed in assembly, C, C++, Swift, [4] Free Pascal, Rust, [5] Go, [6] MicroPython, CircuitPython, [1] [7] Ada [8] and TypeScript. [9] It is powerful enough to run TensorFlow Lite. [1]
At announcement time, four other manufacturers (Adafruit, Pimoroni, Arduino, SparkFun) were at advanced stages of their product design, awaiting the widespread availability of chips to be put in to production. [10]
Hackaday notes the benefits of the RP2040 as being from Raspberry Pi, having a good feature set, and being released in low-cost packages. [11]
Multiple stepping levels of the chip have been produced. [12]
The chip is 40 nm silicon in a 7 × 7 mm QFN-56EP surface-mount device (SMD) package manufactured by TSMC [13]
A number of manufacturers have announced their own boards using the RP2040. A selection of the growing number is here:
| Board name | Manufacturer | Size (mm) | Header pins | Debug connection | Number of pads | USB connector | Other connectors | Flash size | GPIO pins | ADC pins | Buttons | Other features | Image |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pico [15] | Raspberry Pi Ltd | 51×21 | 40+3 | via headers | 6 | micro-USB | 2 MB | 26 | 3 | BOOTSEL |  | ||
| Pico W [16] | Raspberry Pi Ltd | 51×21 | 40+3 | via headers | 6 | micro-USB | 2 MB | 26 | 3 | BOOTSEL | Wi-Fi, Bluetooth |  | |
| XIAO RP2040 [17] | Seeed Studio | 20×17.5×3.5 | 14 | Reset Button/ Boot Button | USB Type-C interface | 2 MB | BOOTSEL + RESET | ||||||
| Nano RP2040 Connect [18] | Arduino | 45×18 | 30 | via pads | 5+4+2 | micro-USB | 16 MB | 1 | Wi-Fi, Bluetooth, 9-axis IMU, microphone |  | |||
| Tiny 2040 [19] | Pimoroni | 22.9×18.2×6 | 8+3 | via headers | USB-C | 8 MB | 12 | 4 | BOOTSEL + RESET | ||||
| Keybow 2040 [20] | Pimoroni | 76x76x30 | 0 (USB only) | USB-C | 2 MB | 16 keys | |||||||
| PicoSystem [21] | Pimoroni | 96.6×42.7×15.5 | 0 (self contained) | USB-C | 16 MB | 4 + joypad | Color 240×240 LCD, onboard battery | ||||||
| Feather RP2040 [22] | Adafruit | 51×23×7 | 28 | via pins | USB-C | STEMMA QT, lipo battery | 8 MB | 21 | 4 | BOOTSEL + RESET | Battery charger | ||
| ItsyBitsy RP2040 [23] | Adafruit | 36×18×4 | 33 | via headers | micro-USB | 4 MB | 23 | 4 | BOOTSEL + RESET | ||||
| Metro RP2040 [24] | Adafruit | 71x53×13 | 32 | SWD + 3 pin JST SH compatible | USB Type-C | DC jack for 6-12VDC / STEMMA QT / SWD / pico probe | 16 MB | 24 | 4 | BOOTSEL + RESET | NeoPixel LED, Micro SD | ||
| QT Py RP2040 [25] | Adafruit | 22×18×6 | 14 | Reset Button/ Boot Button | USB-C | STEMMA QT | 8 MB | 13 | 4 | BOOTSEL + RESET | 3.3vdc regulator, NeoPixel LED | ||
| Pro Micro – RP2040 [26] | Sparkfun | 36×18 | 24 | 4+2 | USB-C | QWIIC | 16 MB | 20 | 4 | BOOTSEL + RESET |  | ||
| Thing Plus RP2040 [27] | Sparkfun | 59×23 | 28 | JTAG pins | USB-C | QWIIC, lipo battery | 16 MB | 18 | 4 | BOOTSEL + RESET | Battery charger |  | |
| MicroMod RP2040 [28] | Sparkfun | 22×22 | 0 | edge connector | edge connector | 16 MB | 29 | 3 | none |  | |||
| Müsli USB Pmod [29] | Lone Dynamics | 45×20.32 | 12 | SWD | USB Type-A female | 12-pin male PMOD, SWD | 256 KB | 8 | 0 | BOOTSEL | USB host, 5V boost converter | ||
| Werkzeug USB Multi-Tool [30] | Lone Dynamics | 50×50 | 32 | USB-C | 12-pin female PMOD, USB Type-A female | 1 MB | 24 | 4 | BOOTSEL | USB device/host, PMOD | |||
| RP2040 [31] | WeAct Studio | 53x21.52 | 40+4 | via headers | USB-C | 2 MB, 4 MB, 8 MB, 16 MB | 26 | 4 | BOOTSEL + RESET | ||||
| RP2040-Zero [32] | Waveshare Electronics | 23×18 | 23 | USB-C | 10-pad connector | 2 MB | 29 | 4 | BOOTSEL + RESET | RGB LED (WS2812) | |||
| Pico2040 | zeankun.dev | 51x18 | 40+3 (2mm and 2.54mm variants are available) | SWD | 4 | micro-USB | 16 MB, 32 MB, 64 MB, 128 MB | 28 | 4 | BOOTSEL + RESET | |||
| Bus Pirate 5 | Where Labs, LLC | 60x37 | 10+9 | SWD | USB-C | 16MB | |||||||
| W5100S-EVB-Pico [33] | WIZnet Co., Ltd. | 75x21 | 40+3 | via headers | Micro-USB | RJ45 | 2 MB | 26 | 3 | BOOTSEL + RESET | Ethernet |  | |
| W5500-EVB-Pico [34] | WIZnet Co., Ltd. | 75x21 | 40+3 | via headers | Micro-USB | RJ45 | 2 MB | 26 | 3 | BOOTSEL + RESET | Ethernet |  | |
| W6100-EVB-Pico [35] | WIZnet Co., Ltd. | 75x21 | 40+3 | via headers | Micro-USB | RJ45 | 2 MB | 26 | 3 | BOOTSEL + RESET | Ethernet |  | |
| WizFi360-EVB-Pico [36] | WIZnet Co., Ltd. | 75×21 | 40+3 | via headers | Micro-USB | 2 MB | 26 | 3 | BOOTSEL + RESET | Wi-Fi |  | ||
| 0xCB-Helios [37] | 0xCB | 36×18 | 40+3 | via headers | USB-C | 16 MB | 29 | BOOTSEL + RESET | default off red power LED, blue user LED, level shifter to drive 5V components. ESD protection chip onboard | ||||
| Picopad [38] | Pájeníčko s.r.o. | 129x53 | 12 | via headers | micro-USB | microSD, external connector | 2 MB | 6 | BOOTSEL + RESET | on-off, Wi-Fi, micro SD card, external connector, IPS screen, speaker, battery | |||
| MUREX ANYESC [39] | MUREX Robotics | 78×35 | 3 | via headers | USB-C | edge connector | 8 MB | 3 | 0 | BOOTSEL + RESET | commercial ESC connector, 3 user LEDs | ||
| RP2040-PICO30 [40] | OLIMEX Ltd | 51×21 | 40+3 | via headers | USB-C | Optional UEXT (pUEXT) | 2 MB | 30 | 4 | BOOTSEL + RESET | 3.3V 2A (3A peak) DCDC, All 30 GPIOs available to the user, Optional status LED | ||
| RP2040-PICO30-16 [40] | OLIMEX Ltd | 51×21 | 40+3 | via headers | USB-C | Optional UEXT (pUEXT) | 16 MB | 30 | 4 | BOOTSEL + RESET | |||
| PicoUSB [41] | VoltMake [42] | 45×12x4 | 0 (USB only) | Dual sided USB-A | 2 MB | BOOTSEL + MODE | status LED |  |
AVR is a family of microcontrollers developed since 1996 by Atmel, acquired by Microchip Technology in 2016. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers. AVR was one of the first microcontroller families to use on-chip flash memory for program storage, as opposed to one-time programmable ROM, EPROM, or EEPROM used by other microcontrollers at the time.
Atmel ARM-based processors are microcontrollers and microprocessors integrated circuits, by Microchip Technology, that are based on various 32-bit ARM processor cores, with in-house designed peripherals and tool support.
Arduino is an Italian open-source hardware and software company, project, and user community that designs and manufactures single-board microcontrollers and microcontroller kits for building digital devices. Its hardware products are licensed under a CC BY-SA license, while the software is licensed under the GNU Lesser General Public License (LGPL) or the GNU General Public License (GPL), permitting the manufacture of Arduino boards and software distribution by anyone. Arduino boards are available commercially from the official website or through authorized distributors.
IOIO is a series of open source PIC microcontroller-based boards that allow Android mobile applications to interact with external electronics. The device was invented by Ytai Ben-Tsvi in 2011, and was first manufactured by SparkFun Electronics. The name "IOIO" is inspired by the function of the device, which enables applications to receive external input ("I") and produce external output ("O").
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Adafruit Industries is an open-source hardware company based in New York, United States. It was founded by Limor Fried in 2005. The company designs, manufactures and sells electronics products, electronics components, tools, and accessories. It also produces learning resources, including live and recorded videos about electronics, technology, and programming.
The ATmega328 is a single-chip microcontroller created by Atmel in the megaAVR family. It has a modified Harvard architecture 8-bit RISC processor core.
Intel Quark is a line of 32-bit x86 SoCs and microcontrollers by Intel, designed for small size and low power consumption, and targeted at new markets including wearable devices. The line was introduced at Intel Developer Forum in 2013, and discontinued in January 2019.
The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller (MCU) and developed by Arduino.cc and initially released in 2010. The microcontroller board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits. The board has 14 digital I/O pins, 6 analog I/O pins, and is programmable with the Arduino IDE, via a type B USB cable. It can be powered by a USB cable or a barrel connector that accepts voltages between 7 and 20 volts, such as a rectangular 9-volt battery. It has the same microcontroller as the Arduino Nano board, and the same headers as the Leonardo board. The hardware reference design is distributed under a Creative Commons Attribution Share-Alike 2.5 license and is available on the Arduino website. Layout and production files for some versions of the hardware are also available.
The Micro Bit is an open source hardware ARM-based embedded system designed by the BBC for use in computer education in the United Kingdom. It was first announced on the launch of BBC's Make It Digital campaign on 12 March 2015 with the intent of delivering 1 million devices to pupils in the UK. The final device design and features were unveiled on 6 July 2015 whereas actual delivery of devices, initially planned for September 2015 to schools and October 2015 to general public, began on 10 February 2016.
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CircuitPython is an open-source derivative of the MicroPython programming language targeted toward students and beginners. Development of CircuitPython is supported by Adafruit Industries. It is a software implementation of the Python 3 programming language, written in C. It has been ported to run on several modern microcontrollers.
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RP2350 is a 32-bit dual ARM Cortex-M33 and Hazard3 RISC-V microcontroller integrated circuit by Raspberry Pi Ltd. In August 2024, it was released as part of the Raspberry Pi Pico 2 board.
There are two hardware issues with the device controller, both of which have software workarounds on RP2040B0, RP2040B1, and are fixed in hardware on RP2040B2
