Open-source hardware project for building a physical Pomodoro timer cube using ESP32 microcontroller. Features visual LED feedback with falling-sand animation, gravity-sensing activation, and customizable timer durations for makers and tech enthusiasts.
The ESP32 Pomodoro Cube is an open-source hardware project that allows makers to build their own physical timer cube. Unlike commercial products, this DIY approach offers complete customization and serves as an educational electronics project.
The cube uses an ESP32 microcontroller with an accelerometer to detect which face is pointing up. Each of the six faces represents a different timer duration (typically 5, 10, 15, 25, 30, and 60 minutes). When you flip the cube to a specific face, it automatically starts the corresponding timer.
The signature feature is the LED matrix display showing a "falling sand" animation. As time progresses, LED pixels "fall" from top to bottom, providing intuitive visual feedback on remaining time.
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Standalone hardware device. Optional web interface for configuration. Code available on GitHub under open-source license (typically MIT or GPL).