![Amazon.com: CQRobot Ocean: 10.525GHz Doppler Effect Microwave Motion Sensor Compatible with Raspberry Pi and Arduino Board. for Industrial, Measurement, Automatic Doors, Sensor Lights, Reversing Radar, etc. : Electronics Amazon.com: CQRobot Ocean: 10.525GHz Doppler Effect Microwave Motion Sensor Compatible with Raspberry Pi and Arduino Board. for Industrial, Measurement, Automatic Doors, Sensor Lights, Reversing Radar, etc. : Electronics](https://m.media-amazon.com/images/I/71cXPOgRVJL.jpg)
Amazon.com: CQRobot Ocean: 10.525GHz Doppler Effect Microwave Motion Sensor Compatible with Raspberry Pi and Arduino Board. for Industrial, Measurement, Automatic Doors, Sensor Lights, Reversing Radar, etc. : Electronics
![The Perfect Automatic Lighting System Using Arduino + LDR + PIR : 6 Steps (with Pictures) - Instructables The Perfect Automatic Lighting System Using Arduino + LDR + PIR : 6 Steps (with Pictures) - Instructables](https://content.instructables.com/FEE/47LN/JBWK78IQ/FEE47LNJBWK78IQ.jpg?auto=webp&fit=bounds&frame=1&auto=webp&frame=1&height=300)
The Perfect Automatic Lighting System Using Arduino + LDR + PIR : 6 Steps (with Pictures) - Instructables
![Automatic Room Light and Fan Controller With Bidirectional Visitor Counter : 3 Steps - Instructables Automatic Room Light and Fan Controller With Bidirectional Visitor Counter : 3 Steps - Instructables](https://content.instructables.com/FJF/NJ9E/K9R64I5N/FJFNJ9EK9R64I5N.png?auto=webp&fit=bounds&frame=1)
Automatic Room Light and Fan Controller With Bidirectional Visitor Counter : 3 Steps - Instructables
![Circuit design of automatic street light control system with the Dim... | Download Scientific Diagram Circuit design of automatic street light control system with the Dim... | Download Scientific Diagram](https://www.researchgate.net/publication/326057835/figure/fig3/AS:642704149073920@1530244018783/Circuit-design-of-automatic-street-light-control-system-with-the-Dim-light-capability.png)