Raspberry Pi Pico Board – Unsoldered Pins

The Raspberry Pi Pico Board runs the RP2040, a dual-core ARM Cortex-M0+ microcontroller built by Raspberry Pi. The pico board ships with unsoldered pins, meaning the 40-pin header is included but not pre-soldered, giving you the choice of orientation for breadboard use or direct PCB mounting. The RP2040 runs at up to 133MHz across both cores and has 264KB of SRAM on-chip. Onboard 2MB flash stores your MicroPython scripts or C firmware between power cycles.

A non-obvious detail about the RP2040 is its Programmable I/O (PIO) blocks. These are independent state machines that handle protocols like WS2812 LED timing or custom serial formats in hardware, freeing both cores for application logic. The pico unsoldered format matters here too — soldering pins yourself lets you choose flush-mount, right-angle, or castellated configurations depending on whether the board is going into a case or onto a PCB. The trade-off is clear though: with only 264KB SRAM and 2MB flash, running large Python projects that import many libraries simultaneously hits memory limits quickly. MicroPython itself takes around 50–60KB of RAM at startup.

Students learning embedded systems, hobbyists building MicroPython data loggers, and makers prototyping low-power sensor nodes all work with this board regularly. Thonny IDE has first-class support for the Pico and handles firmware, the REPL, and file transfers over the Micro-USB interface. The microcontroller board also works with the C/C++ SDK for bare-metal projects. Pick it up from StemVolt with fast dispatch across India.

Related Product:

• Checkout the Raspberry Pi 4 Model B – 2GB RAM Board

Features:

• Dual-core RP2040 runs both cores simultaneously for parallel task execution
• 264 KB SRAM handles MicroPython runtime and C++ programs without memory pressure
• 2 MB onboard flash stores full firmware and user scripts on the PCB directly
• 26 unsoldered GPIO pins let engineers choose header type for their specific build
• Drag-and-drop UF2 programming via Micro-USB — no drivers or programmer hardware needed

Technical specifications:

 Applications:

• Students use Raspberry Pi Pico Board to build temperature and humidity loggers with I2C sensors
• Pico board PWM outputs control servo positions in college robotics arm projects
• Raspberry pi pico microcontroller runs MicroPython scripts for OLED display and keypad interfaces
• Engineers prototype custom raspberry pi board sensor arrays using PIO state machines for precise timing
• Microcontroller board unsoldered variant fits directly into custom PCB designs for production prototyping

Package includes:

• 1 x Raspberry Pi Pico Board – Unsoldered Pins