Vibetastic - Single Key Keyboard

Click the image above to watch the demo video

Overview

A very silly but functional single-key keyboard - perfect for vibe coding! This project combines interesting hardware design choices with AI-assisted firmware development.

Key Features

• Dual Power Management: Uses TPS2117 for clean switching between battery and USB power with controlled slew rate
• Versatile Switch Compatibility: Custom PCB footprint supports both low-profile and full-height Cherry MX switches
• Stabilizer Support: Full-height keycaps can use stabilizers for improved feel and reduced wobble
• AI-Coded Firmware: The entire codebase was developed through AI collaboration without manual code review

Hardware Highlights

The PCB incorporates several thoughtful design decisions:

• TPS2117 power switch controller enables high capacitance loads without violating USB specifications
• Hybrid Cherry MX footprint accommodates both switch types (though stabilizers only work with full-height switches)
• Clean power management replaces traditional MOSFET/diode circuits

Project Structure

• /firmware/ - PlatformIO-based embedded firmware
• /hardware/ - KiCad PCB design files and component libraries