Review on π Wishiot HC-SR501 PIR Infrared IR Sensor Body Motion Module with 1 Channel Relay Module 5V for Effective Motion Detection and Home Automation by Iori Yagami α
The quality of the product is at the level, I will recommend this product to my friends.
I took it to automatically turn on / off the LED lighting in the kitchen under the cabinets. A pair of transistors, resistances, a capacitor, and now, when you approach the tables, the light turns on smoothly, you leave - it goes out after 30-40 seconds. Very convenient, in places where hands can be in flour, water, etc. The description says: "It is not recommended to use the sensor in places with sudden temperature changes." So, it does not react to the stove and the dishes cooked on it, there are no false positives.
- Price, small size, with a Fresnel lens, input voltage range (both 5V and 12V are possible), free delivery to the post office.
- Pulse output 3.3V
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