This TTL counter was found in the April 1979 issue of Radio Electronics magazine. The circuit is powered by 5 V and has a pulse generator for educational or experimental purposes.
Written in an article in Radio Electronics magazine in April 1987, this circuit triggers an alarm...
This is the receiver circuit for the previous transmitter. The circuit has a programming key to...
This is an example of a temperature sensor shield using the Texas Instruments TMP390 obtained from...