About

Python code for HC-SR501 PIR Motion Detector

Items

• HC SR501 PIR board
• RaspberryPi
• 3 x Dupont jumpers F-F

Board Settings

To start with, both sensitivity and time delay potentiometers should be kept to the minimum i.e. both turned CCW to 0700 hour position. Trigger jumper should be set to H position.

Wiring Diagram

https://www.sensoranalytics.com.au/image/shared/WiringDiag.png

Install

• Copy ctrl-pir, driver-pir.py, and pir.py files to ~/src/pir. Set LOGFILE to actual path in pir.py.

Run

cd ~/src/pir
./ctrl-pir start

View Alerts

screen -r pir

Issues

Install screen. Install missing python packages used by pir.py.

Good Ideas

Adding ctrl-pir start to start on boot to crontab. For extra cautious, ctrl-pir restart once a day at some off peak hour.

Phone Alerts and Notifications

Register with pushover.net. Then add your app token and user key in pir.py and set Mute = 1. Now phone will sound and display notifications.