How to measure large AC mains voltage through MCU ADC?

Comments · 50

• UR

  @uranium_beaver · 3 months ago

  I like your passion about natural selection but you could at least mention galvanic isolation and and consequences of its lacking

  15

• TH

  @theWeakForce77 · 3 months ago

  you are a wonderful teacher. Great diagrams, calculations and explanation! Thank you!

  1

• AR

  @arp_catchall · 4 months ago

  Thanks for great and clear explanation AND for not using music or sound effects : really helped with concentration.

  3

• SS

  @ssjihad7014 · 4 months ago

  love it,,, i wanna see a video about making a oscilloscope using stm 32 f411 blackpill,,

  3

• MA

  @mand6029 · 4 months ago

  You always produce very intuitive, and inspiring videos, we thank you very much, really, bravo🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

  3

• TO

  @tobiasrice · 4 months ago

  I’m not sure I have a reason to build this circuit, but I got a lot out of it regardless. Seeing how some of the concepts put into practice gives me a much better understanding of the concept. <br>Thanks for sharing your experience with the community!

  1

• PR

  @premjipatel2812 · 4 months ago

  Very interesting and clever approach, thanks

  1

• EN

  @Enigma758 · 4 months ago (edited)

  I&apos;d still use opto-isolators or s step down transformer rather than connect AC mains to my ADC via resistors only. &nbsp; You really should consider some form of isolation for safety.

  17

• DA

  @Dailymailnewz · 4 months ago

  Thank you very much this is indeed useful stuff I thought what you said only small voltage.

  1

• RA

  @Ramasco_Industries · 4 months ago

  This was an amazing video, thank you!

  1

• TR

  @trinitron40237 · 3 months ago

  We need more amateurs like you.🙃

• LU

  @lunedemai2 · 3 months ago

  The chassis of most oscilloscopes is connected to earth ground. Measuring mains voltage without a differential probe can lead to potentially fatal consequences.

  2