Dev.to
5/11/2026

I lost my TV remote, so I built one with an Arduino
Short summary
Developer reverse-engineered a Xiaomi TV's IR protocol after losing the physical remote and built a DIY solution using Arduino D1 Mini with web control. The process involved discovering Xiaomi's non-standard quaternary protocol and integrating an open-source IR database to solve the problem.
- •Built Arduino-based IR remote after losing physical remote for Xiaomi TV
- •Reverse-engineered non-standard quaternary protocol using open-source tools and GitHub database
- •Created web UI for control, demonstrating detailed hardware debugging workflow
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