Parametric Motion / Light Sensor

Motion and Light sensor for MySensors with Arduino Nano, HC-SR501 and NRF24L01.

The light sensor is a simple voltage divider with a LDR and a 10k resistor resistor. LDR between GND and A0, the resistor between +5V and A0.

All electronic parts were bought on AliExpress (Links are examples).

- [Arduino](https://de.aliexpress.com/item/Freeshipping-10PCS-LOT-Nano-3-0-controller-compatible-with-arduino-nano-NO-CABLE/1950565375.html)
- [NRF24L01](https://de.aliexpress.com/item/10PCS-NEW-NRF24L01-2-4GHz-Antenna-Wireless-Transceiver-Module/32216845738.html)
- [HC-SR501](https://de.aliexpress.com/item/10PCS-HC-SR501-Adjust-IR-Pyroelectric-Infrared-PIR-Motion-Sensor-Detector-Module/32294032548.html)
- [MicroUSB breakout board](https://de.aliexpress.com/item/10-st-cke-Breakout-Netzteil-Diy-Elektronische-PCB-Board-Modul-Power-Adapter-Board-USB-Breakout-Modul/32886102706.html)
- [3.3V voltage regulator](https://de.aliexpress.com/item/5PCS-5V-3-3V-DC-DC-Step-Down-Power-Supply-Buck-Modul