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Dev.to
Dev.to
5/11/2026
I lost my TV remote, so I built one with an Arduino

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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