Microduino mCookie Core+ ATMega644

Microduino mCookie Core+ ATMega644 is the heart of your next DIY gadget. The tiny 27 mm × 27 mm board carries an 8-bit ATMega644 MCU and slips into the mCookie magnetic, stackable ecosystem.

Simply snap it between other mCookie modules to build data-loggers, robots, wearables, or IoT endpoints. The orange silicone bumpers protect the PCB and align perfectly with standard bricks, so even beginners can assemble reliable circuits without soldering.

• 64 KB Flash and 4 KB SRAM running at 16 MHz
• 32 General-Purpose I/O pins, 8 analog inputs, 6 PWM outputs
• Auto-aligning gold pogo-pin connectors for tool-free stacking
• Arduino IDE support with abundant online examples
• Low-power 5 V operation (3.3 V tolerant pins)
• Dimensions: 27 mm × 27 mm × 7 mm (including bumpers)
• Requires separate USB-TTL programmer or mCookie FT232 Adapter for code upload

Whether you teach STEM classes or hack weekend projects, Core+ delivers dependable performance in a pocket-size form factor. Combine it with sensor, Wi-Fi, or motor driver tiles to bring creative ideas to life.

View full documentation