2 LED Flasher with 555

Posted on Jul 1, 2012

The circuit is based on the IC1 that is 555, for the creation of alternate flashes from the two led D1-2, that can be also different colour. The frequency of alternation can be regulated from the trimmer R3 and from the C1, if changes his capacity. The supply can become from a battery or from one separate power supply. A use of circuit is creation '' clue '' of alarm. Exists the possibility is connected at the same time with D1-2, the optocoupler IC2-3, with that we externally drive circuits, for various uses.

2 LED Flasher with 555
Click here to download the full size of the above Circuit.

Part List R1-2= 1.5Kohm C2= 100nF 63V D1-2= LED 3mm R3= 250Kohm trimmer C3= 100uF 16V BATT= 9V Battery R4-5= 470 ohm IC1= 555 S1= Push Button or switch on-off C1= 10uF 16V IC2-3= 4N25 optocoupler

Leave Comment

characters left:

New Circuits



Popular Circuits

Audio-powered noise clipper
Sawtooth Generator For Sweep Generators
circuit How to find currents of all nodes using superposition theorem
decibel meter circuit
Variable Power Supply 0-24V
Joyoung JYC-22F-type low-voltage power supply circuit
Electronic Peacock by the CD4017 NE555 circuit diagram consisting of the opening screen