Big Ideas, Small Board: Meet the Compact Uno R4 Minima-Compatible Development Board
Planning a custom game controller, a smart alarm clock or your next robotics project? The Compact Uno R4 Minima-compatible Development Board is now available from PMD Way with free delivery, bringing 32-bit processing power to a compact board that’s easy to work into your next build.
Based on the Arduino Uno R4 Minima design and powered by a Renesas RA4M1 microcontroller, it offers a useful combination of performance, memory and practical connections for learning, experimenting and prototyping.
More room for your next idea
The board runs at 48 MHz, with 256 kB of flash memory for your program and 32 kB of RAM for working data. Those specifications give you scope to explore projects involving sensor readings, interactive controls and more involved program logic. The RA4M1 is also at the heart of the official Arduino Uno R4 Minima.
Compact size, convenient connections
This board operates at 5 V and includes a USB-C port for programming and power. Its compact format makes it a handy option when space matters, whether you’re building a desktop gadget or fitting a prototype into an enclosure.
Male inline headers provide access to the digital and analog I/O, making jumper-wire connections to sensors, servo control signals and other devices straightforward.
Choose the header option that suits your build:
- Loose headers if you prefer to solder them yourself.
- Soldered headers if you want to get straight to connecting your hardware.
What will you build?
The built-in real-time clock opens up possibilities for clocks, alarms and scheduled actions. USB HID support lets the board emulate a keyboard or mouse—ideal for exploring custom shortcut buttons and interactive input devices.
A few ideas to get you started include:
- A desktop clock with buttons for setting alarms.
- A custom USB controller for shortcuts or games.
- A sensor-driven robotics prototype.
- An experimental musical interface.
Add the appropriate components and let your project take shape with the Compact Uno R4 Minima-compatible Development Board from PMD Way.
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