This is an Op-amp LED flasher circuit that is interesting. We have a lot of how to build a dual-LED flasher circuit. But this is a good circuit that we seldom use them. The LEDs will blink within a period. This circuit can work with IC LM358. number LM358 is a cheap build origin waves square circuit comes out 1 cycle per every second.
Op Amp LED Flasher circuit
A LM 358 op-amp is is configured as an oscillator in this circuit and used to flash an LED on and off. This is another easy circuit for beginners in electronics field, and it can be built on an electronic breadboard.
Working
The ic connected with few components. 1 st pin connected to the LED +VE TERMINAL with R4 680 ohms. pin number 8 and 4 is power supply connections. pin 2 and 4 connected as feedback of 100k resistor. also 47k is connected to 3rd pin to pin 1. R3 and R5 are connected series to battery +ve terminal.4.7uf capacitor connected to the 2nd pin of the IC. The LED Flasher ready.
