Common Ground - Demonstration - Simply Put

[Keepitreal]

First 17 seconds opened my eyes 😂! Love your content. Second video I’ve come across. Will definitely check more out!

[michaels]

beautiful explanation, cant believe this doesnt have thousands of views.

[markharrisllb]

That’s brilliant! I’m building the world's most over engineered lab power unit and I’m having difficulties working out my grounds, this has helped a lot.

Your Pokemon poster made me smile, my ex's son has classic ASD and Pokemon is his 'thing'. That alone is worth a big thank you.

[tonysicily]

Awesome, you are a genius and an incredible teacher.

I have been struggling getting multi power source projects to work, you have REALLY helped

So, just to check, 5v is NOT 5v but rather it is 5V relative to Gnd, therefore in a multi power source project you need to to set a “common ref point” ie Common ground

[josephbarron]

In all seriousness this a great simple explanation.

Had a customer try to use a Milwaukee battery to change flash patterns on a light controller on a vehicle. Because it wasn’t common the the vehicle ground the pattern didn’t change.

[chrisguyatt]

Very well put, thank you very much for taking the time to explain this.

[gilberttanui]

Transistor should have common ground as arduino current flows through base to emitter whereas same for collector VCC therefore transistor should share same ground

[uku]

Thank you. I still don't understand the physics and theory behind it, but it solved my practical problem

[danialothman]

This was simply put 😄 really helped with visualizing what happens.

[TheSudouser]

Thanks so much, this made it much more concrete for me. I am trying to do BJT transistor Characteristics curves with voltage reading sensors but because I didn't have a common ground, it wasn't measuring the correct voltage. I appreciate your explanation!

[riskytime]

May your electrons be blessed and your ideas thermodynamically instilled with Mother Earth's bountiful energies, thank you friend 🤝

[FourthWayRanch]

I've got a function on a microcontroller works by connecting a pin to ground. I want to do that switching with a voice recog module that outputs a 3.3V signal. how can we do it without a relay?
transistor maybe?

[HOboXWARRIOR]

Late to the party, but this is exactly what I was looking for, great stuff!

[danthefrog]

What if the other power supply is running at a higher voltage than the arduino? Does that change how we create a common ground?

[AlexP-zxyo]

I have a problem when I'm using arduino to read from 8 devices powerd individually.i have connected them all but the serial connection still fails on my laptop

[calebmorand]

Nice explanation! With a common ground between multiple DC power supplies, what would happen if a short circuit happens on one of the power supplies? Would it effect the other power supplies referenced to the common ground of the setup? Thanks! Also can I reference common ground between multiple DC power supplies of different amperage and voltage?

[HappyHermitt]

If I'm using a separate power supply for a servo controlled by Arduino, do I combine the grounds to create a common ground.??

[AutodidactEngineer]

What happens if you short DC ground to earth?
Will it spark?

[sia]

What is maximum voltage to ground rating of a power supply? How do I find it for a power?

[jhg]

Being a math nerd I noticed the time is tau or 2 pi