Sonoff Sensors: PIR, door
Tested Sonoff Sensors: Infrared, door
1 min read
Advantages:
- Compliant with ZigBee standard (will work with any ZigBee hub)
- Battery power supply (for human presence can be used radare too, but radar has wired connection)
Disadvantages:
- Infrared (IR) Sensor the “Off Delay” is 1min. This made it difficult to use it in the human presence algorithm. We use two sensors in the toilets/bathrooms: IR and door sensors. The algorithm is simple: if someone opened the door, then closed the door, and then moved inside the room (this will trigger IR sensor) - "Human Presence" is ON until the door is opened again. But if someone leaves the room before the door is closed, due to the long "Off Delay" of the IR sensor, the algorithm mistakenly turns on "Human Presence". Of course, we have a solution, but the "Radar" human presence sensor has competitive advantages (see the article above).
- Possibly Sonoff IR Sensor does not have build in “Correction of Sensitivity depending on external lighting”, it glitches on the daylight.
- All Sonoff sensors do not have response for read commands. Battery level information is sent only by Sensor internal algorithm, this is not very good.
