Microwave doppler sensor lamp with perplexingly simple circuitry. скачать в хорошем качестве

Microwave doppler sensor lamp with perplexingly simple circuitry.

I got this lamp so we could take a look at it and see if the body detection sensor could be repurposed. (Yes it can!) These lamps have a different sensing system to the traditional PIR nipple lamps that detect body heat. Whereas the PIR lamps can't detect through walls and glass, these lamps can. This would theoretically allow their use in enclosed outdoor lights to convert them into security lights. The sensitivity to movement and ability to detect through walls is a bit creepy. You literally can't hide from them. Even the slightest movement in another room will make the lamp light, and I'd guess that pets passing by the house on the outside could also be detected. The circuitry is really not what I expected though.... The microwave module is pretty much using just one transistor, or possibly a dedicated microwave chip in a 3-pin package. But the main circuitry uses a very common BISS0001 PIR sensor chip, purely for its op-amps, threshold detectors and timers. The RF module is effectively being seen as a PIR sensor by the circuitry. I wasn't expecting that. I was expecting a dedicated control chip. If you enjoy my videos you can help support the channel with a dollar for coffee, cookies and mysterious RF gadgets at:- http://www.bigclive.com/coffee.htm