Kindly Morrow
RP2040 Expansion Board with 3.5" Touch Screen
Prototype faster with a full-featured RP2040 expansion board that brings a 3.5-inch capacitive touch display, RGB LEDs, a buzzer, and a built-in breadboard to one surface. Write MicroPython or C firmware and have pixels on screen in an afternoon. Built for makers who want to skip the wiring mess and get straight to building.
Project idea: Build a standalone environmental dashboard: wire a BME280 to the breadboard section, display live temperature, humidity, and pressure graphs on the touch screen, and program the buzzer to alert when humidity crosses a threshold. No extra hardware needed beyond the sensor.
Key Features
- 3.5-inch capacitive touch screen, readable UI without an external display driver board
- Onboard RGB LEDs for visual feedback or status indicators
- Integrated piezo buzzer for audio alerts, tones, or simple melodies
- Built-in breadboard area keeps components co-located with the controller
- RP2040 dual-core ARM Cortex-M0+ running at up to 133MHz
- Compatible with MicroPython, CircuitPython, and the Pico C/C++ SDK
- Ships from US warehouse, 11,000+ units in stock
Frequently Asked Questions
Does this work with MicroPython out of the box?
Yes. Flash the standard Raspberry Pi Pico MicroPython UF2 and you can drive the display and buzzer with common libraries. The touch controller will need its specific driver, typically CST816 or similar, available in the community repos.
Is the breadboard area a real solderless breadboard or just pads?
It includes a physical solderless breadboard section integrated into the board, so standard 2.54mm pitch components and jumper wires fit directly. No soldering required for prototyping.
What power input does this board accept?
It powers via USB-C, same as the standard Raspberry Pi Pico W form factor. You can also supply 3.3V directly to the appropriate header pins if integrating into a battery-powered project.
