Found in American documentation from the 1980s, this circuit makes use of components of the time, which are uncommon today. The circuit detects the approach using a sensor formed by metal plates.
The National Semiconductor LM675 operational amplifier can provide up to 3 A of output current. In the...
This circuit was obtained from a Philips documentation from 1970. It can be built on modern...
April 2017 - Mouser Electronics already stocks the new Broadcom APDS-9500 proximity and gesture...