441 LED oscilloscope

The project is finished. I've used an old television as the body. In this video I'm testing all the functions of the self-made oscilloscope and I compare them with the functions of a real oscilloscope. The whole oscilloscope is build with standard components. It's a straight system and there is NO microchip used. In addition you could say that it's an analogue oscilloscope instead of a digital one. The oscilloscope has two channels (for AC and DC signals).

In this video I'm testing:
- Time/DIV
- The slope
- Y-as adjustment on channel 1
- Y-as adjustment on channel 2
- Triggerlevel
- The inputcoupling on AC and DC by adding a DC-voltage with the generator.
- Triggering by adjusting the frequency down to a verry low frequency.

Thanks for watching.

Category:

Science & Technology

Tags:

• Oscilloscope
• LED
• ADC

[helicoptered]

very good, surprised you used led's though, I wouldn't mind a scope myself, how long did it take you to build it?

[willemsruben1]

@helicoptered It was for a school-project. All the time together... I think a month!

[NerdForMIT]

Very good job. I honestly don't know what else to say!

I do however like to see you do PWM waves on this thing. It probably would be very good, oh did you use a old TV as the chassis?

[willemsruben1]

Hmmm... I don't know :P The vertical lines in a square wave signal have a dv/dt of nearly zero with the result that you wont see the vertical lines anymore. However you will see the horizontal lines and you will be able to calculate the duty cicle of the PWM-signal. ;)

The chassis is indeed an old Phillips-television :D

Thank you for your reaction!

[amppower]

max frequency ?

[willemsruben1]

7kHz :P

[Slovenija12345]

can i get the schematics?

[Slovenija12345]

WHAT ICS ARE USED?

[20jklm]

These days are finished with the project for a hypothetical oscilloscope using LED's, inspired by this and other videos circulating on youtube unfortunately first cost, and will not allow me to design it, and second I am unable to publish the vast majority of my work, I would like be more open but would cost me.

[denizard]

wow ... awesome job !!... you could post the circuit of this project?

[shaikh2]

WOW!! Great work......

Could you please sharing the circuit diagram and part list........Thanks

[LoiraoCindy]

Hey man, any chance of you posting the schematics for this project??

Very best led scope i've seen so far! congratz!

[helicoptered]

@willemsruben1 Nice work, have you ever built anything from tubes/valves.. especially soviet ones :)

[game10ful]

Legal mesmo, show.