Friends in this video I will show you How To Make Delay Off Timer Circuit With Adjustable Time Function..Simple Timer Circuit Using 555 IC..Friends it a simple project and you can easily make this project at your home...Friends in this circuit we will use 555 ic to regulate the time..Friends in this circuit we will connect a preset to adjust the time..Friends in this circuit we will also connect a relay and friends we can connect any electric light with the relay..Friends when we will on the circuit the relay will also on and the light [which we connect with the relay]will start to glow...But after some time the circuit will be off automatically and the relay will also off..Friends when the relay will be off the light[which we connect with the relay]will also off with the relay..Friends you can adjust the off time of this circuit by adjusting the preset...Friends if you will adjust short time the circuit will be off shortly and if you will adjust long time the circuit will be off after long time...Friends in this circuit you will adjust time from 30 seconds to 4 minutes..Friends in this way the circuit will work...So friends if you want to know how to make a delay off timer circuit at your home then watch the video and follow my instruction...Friends the timer circuit diagram is in the video please see the circuit diagram...Thanks...
Used materials.....
1 piece blank pcb board, 1 piece 555 timer ic, 1 piece 1M preset, 1 piece 10k resistor, 1 piece 1k resistor,1 piece 220uf/25volt capacitor,1 piece 100nf/25volt capacitor, 1 piece micro on/off switch, 1 piece BC547 transistor, 1 piece 6 volt relay...
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