LED Tester
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Description
How to make an automatic voltage tester for LEDs, batteries, and diodes with a 3.7V battery. Here I have tried to provide detailed information on how to make an automatic LED voltage tester with a 3.7V battery. I hope this is useful to you.
XL6009 DC-DC Boost Converter Module: https://n9.cl/my321
2000mAh 18650 Rechargeable Battery: https://n9.cl/4sns0
TP4056 Charging Module: https://n9.cl/5gdhz
Black Mini On-Off Rocker Switch, 2-pin: https://rb.gy/hmaocs
Plug Socket Plated Terminal Connector: https://n9.cl/tamx3f
Digital Laboratory Multimeter Test Leads: https://n9.cl/1wciuz
Below is the electronic schematic
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