Quick Summary (TL;DR):A reliable ESP32 power failure detector for Home Assistant needs two independent paths: the ESP32 stays alive from a UPS or battery-backed 5 V supply, while a separate isolated signal tells it whether the monitored mains circuit is…
Quick Summary (TL;DR):A conventional roller shutter or tubular blind motor normally uses two direction inputs: OPEN/UP and CLOSE An ESP32 can control those directions through two relay outputs and expose the motor as a native Home Assistant cover entity with…
Quick Summary (TL;DR):Combining a PIR motion sensor with a mmWave presence sensor such as the LD2410 gives Home Assistant a much better occupancy signal than either sensor alone. The PIR is excellent at detecting a person entering because it reacts…
Quick Summary (TL;DR):The HLK-LD2450 becomes much more useful in Home Assistant when you stop treating it as a simple presence sensor and start using its X/Y coordinates and three configurable rectangular zones. With current ESPHome, the LD2450 can expose up…
Quick Summary (TL;DR):A conventional roller shutter or tubular blind motor normally uses two direction inputs: OPEN/UP and CLOSE An ESP32 can control those directions through two relay outputs and expose the motor as a native Home Assistant cover entity with…
Quick Summary (TL;DR):Combining a PIR motion sensor with a mmWave presence sensor such as the LD2410 gives Home Assistant a much better occupancy signal than either sensor alone. The PIR is excellent at detecting a person entering because it reacts…
Quick Summary (TL;DR):The HLK-LD2450 becomes much more useful in Home Assistant when you stop treating it as a simple presence sensor and start using its X/Y coordinates and three configurable rectangular zones. With current ESPHome, the LD2450 can expose up…
Quick Summary (TL;DR):The safest and most universal way to add an ESP32 garage door opener to Home Assistant is to imitate the existing wall pushbutton rather than trying to control the motor directly. Use a dry-contact relay connected across the…