The Raspberry Pi Pico is a microcontroller with an RP2040 chip featuring 2 x ARM Cortex-M0+ cores clocked at 133MHz; 256KB RAM; 2 MB of onboard Flash, 30 GPIO pins; and a range of interfacing options. It is a single-sided PCB measuring just 21mm x 51.3mm with a micro-USB port and 40 main user pins with through-hole pins to allow for surface mounting.
OKdo Raspberry Pi Pico Kit - OKdo
Raspberry Pi Pico microcontroller mini development board adopts the microcontroller chip RP2040 independently developed by Raspberry Pi Support C/C++,
Raspberry Pi Pico with Pre-Soldered Color-Coded Header Microcontroller Development Board Single Board Computer Dual-Core Processor RP2040 Chip
Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. The Pico is programmable in MicroPython and C++.
Raspberry Pi Pico
Raspberry Pi Pico RP2040 : ID 4864 : $4.00 : Adafruit Industries
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Arduino Nano RP2040 Connect — Arduino Official Store
Get Started with Raspberry Pi Pico and MicroPython - OKdo
Raspberry Pi Build Hat - OKdo
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Get Started with Raspberry Pi Pico & Visual Studio Code - OKdo
Get Started with Raspberry Pi Pico and C/C++ - OKdo
Raspberry PI Pico Type C 16MB Microcontroller RP2040 Pi dual-core