The HC-SR501 module is a PIR motion detector. This sensor works as a simple switch. The HC-SR501 has an all-or-nothing output. The high threshold makes it possible to know that a movement has been detected. The HC-SR501 is supported by ESP Easy firmware for ESP8266 WiFi modules.
Best Offers HC-SR501 Module, PIR Motion Detector
Deals on Arduino, ESP Easy, ESP8266 compatible sensors and actuators
- This product is available at Ebay, FastTech, LightInTheBox.com and MiniInTheBox.com, GeekBuying, Banggood, AliExpress, Amazon.com, TOMTOP Technology Co., Ltd.
- At ebay.com you can purchase New HC-SR501 Infrared PIR Motion Sensor Module for Arduino Raspberry pi for only $0.99, which is 94% less than the cost in Amazon.com ($16.69).
- The lowest price of Qunqi 10pack HC-SR501 Pyroelectric Infrared PIR Motion Sensor Modules for Microcontrollers was obtained on 2 August 2020 3 h 01 min.