How TO Make Simple ON OFF Button Circuit

ON & OFF Button Circuit

This post explains how to Make an Simple ON Off button circuit using PNP Transistor and optocoupler in this circuit.

Circuit Diagram :

I Designed A Circuit Diagram From Easy Eda Site

Components Needed :

  • 817 Optocoupler – 1
  • BC557 Transistor – 1
  • 1k Resistor – 1
  • 330 ohms Resistor – 1
  • 220 ohms Resistor – 1
  • micro switch – 2

Tools Needed :

  • Soldering Iron
  • Soldering Past
  • Lead
  • Component Holding Stand
  • Soldering Stand

Make Video :

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