Uploaded December 2024 | Updated September 2026, 8 hours ago

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In this video, I show you my new little gadget, which is a 2-channel voltmeter for breadboards. It makes life easier when you need to measure voltages on a breadboard.

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CH32V003J4M6: https://s.click.aliexpress.com/e/_oEHxP1d
WCH-LinkE programmer: https://s.click.aliexpress.com/e/_DdUKRAz
Multimeter: https://s.click.aliexpress.com/e/_AfAhM2
Breadboard: https://s.click.aliexpress.com/e/_DloYYXN
0.42" OLED display: https://s.click.aliexpress.com/e/_omVq1Zd

Article: https://www.curiousscientist.tech/blog/breadboard-voltmeter
PCB: pcbway.com/project/shareproject/2_channel_breadboard_voltmeter_0749f2e1.html
Parts and tools: https://curiousscientist.tech/tools