Reverse-engineered Fujitsu FGL Type A wired bus protocol — for older Fujitsu/General air conditioners (2000-2010 era), wired remotes (EZ-0001HSEFR and similar). Full spec + Python tools.
home-automation iot esp32 reverse-engineering smart-home general hvac sigrok homeassistant loxone fujitsu air-conditioner bus-protocol protocol-spec fgl-bus
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Updated
May 10, 2026 - Python