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6 cheap sensors you can make and gift to family and friends

There are several cheap sensors that can help you build incredibly versatile devices without spending a lot. And, you won’t ...
Recombu

10 Best Light With Pir Sensors

[Works with Multi Development Board] HC-SR501 micro pir sensor module for raspberry pi, it has jumper breakout for dual-mode operation (as picture shown). Works with any SOC, MCU or can even work ...
EDN

Motion Sensor using Passive Infrared

The presented schematic shows how to build a simple PIR motion sensor. PIR sensors allow motion sensing, it is almost always used to detect whether someone has moved in or out of the sensors range.
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10 Best Pir Sensors

Working Voltage:DC 2.7V-12V;Max Static current:1mA;delay time: 2S;Blockade time: 2S;Sensor angle:100 Degree;Sensor distance: 3-5m. Repeatable Trigger Mode:When people enters the sensing range, the ...