Connect PIR sensor to NodeMCU using 3.3V (HC-SR501)

Connect PIR sensor to NodeMCU. In this video, I show how to connect the HC-SR501 PIR sensor to NodeMCU (ESP8266), bypassing the PIR sensor's 3.3V voltage regulator. This improves the sensor's reliability and RFI tolerance, in my experience. The sensor becomes more stable and has fewer false positives. This is how all my PIR sensors are connected in my openHAB home automation system.

I use this HC-SR501 sensor with my NodeMCU Kube multi-sensor for home automation projects around the house.

---
Components used in this video:
PCB: https://goo.gl/U2fY7y (or my Tindie: https://www.tindie.com/products/11677/)
NodeMCU: http://amzn.to/2hd6RJk
OLED: http://amzn.to/2xR4iQP
HC-SR501 Sensor: http://amzn.to/2DhmyUL

Видео Connect PIR sensor to NodeMCU using 3.3V (HC-SR501) канала BK Hobby