How to make variable lab bench power supply using xl4016 buck converter

In this video I'll show how to make a diy variable lab bench power supply
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Note: there is many videos available in youtube with same concept . im uploading because of educational purposes only not meant to copy others. Dm me for any queries. Thank you
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Components required :
1.volt amp meter
2.dc -dc buck converter
3.12v -24v 5a or higher power supply
4.general purpose pcb
5.binding posts and connectors
6.heatshrink tubes (optional)
7.dc female jack
8.rocker switch
9.fuse (optional
10.7805 ic for voltamp meter
11.potentiometer knob
12.10k potentiometer

Circuit diagram:https://drive.google.com/file/d/11JKA...


Music used from youtube audio library
1.watch me
2.parasail
3.find your best way

Thanks for watching.