This circuit was obtained from the Encyclopedia of Electronic Circuits volume 5 of 1995. The circuit uses the 4001 CMOS to obtain hysteresis in the sensor feedback.
The operational amplifier can be of any type in this circuit, found in a 1974 publication. The...
We found this alarm in an English publication from 1978. Although the original power supply is 3...
SAM D5x and E5x MCUs Provide Powerful Performance and Enhanced Security Features CHANDLER, Ariz.,...