RP2040 is a 32-bit dual-core ARM Cortex-M0+ microcontroller designed by Raspberry Pi Ltd. In January 2021, it was released as part of the Raspberry Pi Pico board. Its successor is the RP2350 series.
Overview Announced on 21 January 2021, the RP2040 is the first microcontroller designed by Raspberry Pi Ltd. The microcontroller is low cost, with the Raspberry Pi Pico being introduced at and the RP2040 itself costing . The microcontroller can be programmed in assembly, C, C++, Forth, Swift, Free Pascal, Rust, Go, MicroPython, CircuitPython, PicoRuby, Ada, TypeScript and Zig. It is powerful enough to run TensorFlow Lite.
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 into production.
Hackaday notes the benefits of the RP2040 as being from Raspberry Pi, having a good feature set, and being released in low-cost packages.
Multiple stepping levels of the chip have been produced.
Features The RP2040 chip is a QFN-56EP surface-mount device (SMD) package manufactured by TSMC using its 40 nm process. Key features: Dual ARM Cortex-M0+ cores (ARMv6-M instruction set), Originally run at 133 MHz, but later certified at 200 MHz Each core has an integer divider peripheral and two interpolators 264 KB SRAM in six independent banks (four 64 KB, two 4 KB) No internal flash or EEPROM memory (after reset, the boot-loader loads firmware from either external flash memory or USB into internal SRAM) QSPI bus controller supports up to 16 MB of external flash memory DMA controller, 12 channel, 2 IRQ AHB crossbar, fully-connected On-chip programmable low-dropout regulator (LDO) to generate core voltage Two on-chip PLLs to generate USB and core clocks 30 GPIO pins, of which four can optionally be used as analog inputs Peripherals: One USB 1.1 (LS & FS) controller and PHY, host and device support, 1.5 Mbit/s (Low Speed) and 12 Mbit/s (Full Speed) Two UART controllers Two SPI controllers One QSPI (quad SPI) controller (SSI), supports 1 / 2 / 4-bit SPI transfers, 1 chip select Two I²C controllers Eight PIO (programmable input–output) state machines 16 PWM channels 4-channel 12-bit 500-ksps SAR ADC, extra channel is connected to internal temperature sensor For comparison with the RP2350, see .
Boards 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 Raspberry Pi Ltd 51×21 40+3 via headers 6 micro-USB 2 MB 26 3 BOOTSEL Pico W Raspberry Pi Ltd 51×21 40+3 via headers 6 micro-USB 2 MB 26 3 BOOTSEL Wi-Fi, Bluetooth XIAO RP2040 Seeed Studio 20×17.5×3.5 14 Reset Button/ Boot Button USB Type-C interface 2 MB BOOTSEL + RESET Nano RP2040 Connect Arduino 45×18 30 via pads 5+4+2 micro-USB 16 MB 1 Wi-Fi, Bluetooth, 9-axis IMU, microphone Tiny 2040 Pimoroni 22.9×18.2×6 8+3 via headers USB-C 8 MB 12 4 BOOTSEL + RESET Keybow 2040 Pimoroni76x76x30 0 (USB only) USB-C 2 MB 16 keys PicoSystem Pimoroni 96.6×42.7×15.5 0 (self contained) USB-C 16 MB 4 + joypad Color 240×240 LCD, onboard battery Feather RP2040 Adafruit 51×23×7 28 via pins USB-C STEMMA QT, lipo battery 8 MB 21 4 BOOTSEL + RESET Battery charger ItsyBitsy RP2040 Adafruit 36×18×4 33 via headers micro-USB 4 MB 23 4 BOOTSEL + RESET Metro RP2040 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 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 Sparkfun 36×18 24 4+2 USB-C QWIIC 16 MB 20 4 BOOTSEL + RESET Thing Plus RP2040 Sparkfun 59×23 28 JTAG pins USB-C QWIIC, lipo battery 16 MB 18 4 BOOTSEL + RESET Battery charger MicroMod RP2040 Sparkfun 22×22 0 edge connector edge connector 16 MB 29 3 none Müsli USB Pmod 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 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 WeAct Studio 53x21.52 40+4 via headers USB-C 2 MB,4 MB,8 MB,16 MB 26 4 BOOTSEL + RESET RP2040-Zero Waveshare Electronics 23×18 23 USB-C 10-pad connector 2 MB 29 4 BOOTSEL + RESET RGB LED (WS2812)Pico2040zeankun.dev51x1840+3 (2mm and 2.54mm variants are available)SWD4micro-USB16 MB,32 MB,64 MB,128 MB284BOOTSEL + RESETBus Pirate 5Where Labs, LLC60x3710+9SWDUSB-C16MBW5100S-EVB-PicoWIZnet Co., Ltd.75x2140+3via headersMicro-USBRJ452 MB263BOOTSEL + RESETEthernetW5500-EVB-PicoWIZnet Co., Ltd.75x2140+3via headersMicro-USBRJ452 MB263BOOTSEL + RESETEthernetW6100-EVB-PicoWIZnet Co., Ltd.75x2140+3via headersMicro-USBRJ452 MB263BOOTSEL + RESETEthernetWizFi360-EVB-PicoWIZnet Co., Ltd.75×2140+3via headersMicro-USB2 MB263BOOTSEL + RESETWi-Fi0xCB-Helios 0xCB36×1840+3via headersUSB-C16 MB29BOOTSEL + RESETdefault off red power LED, blue user LED, level shifter to drive 5V components. ESD protection chip onboardPicopad Pájeníčko s.r.o.129x5312via headersmicro-USBmicroSD, external connector2 MB6BOOTSEL + RESETon-off, Wi-Fi, micro SD card, external connector, IPS screen, speaker, batteryMUREX ANYESCMUREX Robotics78×353via headersUSB-Cedge connector8 MB30BOOTSEL + RESETcommercial ESC connector, 3 user LEDsRP2040-PICO30OLIMEX Ltd51×2140+3via headersUSB-COptional UEXT (pUEXT)2 MB304BOOTSEL + RESET3.3V 2A (3A peak) DCDC, All 30 GPIOs available to the user, Optional status LEDRP2040-PICO30-16OLIMEX Ltd51×2140+3via headersUSB-COptional UEXT (pUEXT)16 MB304BOOTSEL + RESETPicoUSBVoltMake45×12x40 (USB only)Dual sided USB-A2 MBBOOTSEL + MODEstatus LED
See also Arduino – a popular microcontroller board family ESP32 – a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. STM32 – a family of 32-bit microcontroller integrated circuits Raspberry Pi – Raspberry Pi's series of small single board computers Thumby (console) – a thumb-sized micro-console powered by the RP2040
References
External links
Official webpage Official documentation