CMOS Proximity Sensor (CB10998E)

Details
Written by: Newton C. Braga

 

This circuit is from an April 2000 Poptronics. The magazine no longer exists, but the circuit can be easily assembled, as all components are common., Power can be supplied with voltages from 6 to 9 V., The circuit lights up an LED when touching the sensor or even when approaching it.

 


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