This circuit was found in the December 1976 issue of Radio Electronics magazine. The circuit includes a powerful pulsating siren. It is activated by courtesy light switches and other sensors.
The capacitor connected to the diode delays the start of operation of the oscillator, whose...
This circuit can be used as a receiver for the CIR10534 transmitter or others described in this...
By pressing and releasing PB1, only one LED is lit, drawing a number from 1 to 6, as in a die. The...