How To Make LED Tester And Working Voltage

Hello friends, this is very cool idea for your electronics lab, this is led checker with display minimum voltage to work the LED. This is very simple to make. Just follow all the step and make your on gadget.

Diagram :

Components :

1) TP-4056 Module : https://amzn.to/3ly4azB
2) Voltmeter -https://amzn.to/3ikkYqS
3) XL6009 Boost Converter : https://amzn.to/31E1ae6
4) Switch : https://amzn.to/31E1ae6