This circuit was taken from old American documentation. The transistors used make it possible to control a motor with up to 2 A of current. They must be equipped with heat sinks.
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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...