Build An Arduino Oscilloscope In 2 Minutes

Note that this is a very crude oscilloscope that gives very simple readings. It works okay for low frequencies and to see if there is something happening or not.

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Hope to see you there!

Thanks for watching!

[realchristopher]

WTF! This is the easiest to see and the simplest to understand video! Closeup image is very important.

Many people show by putting things far away, odd angles, body or hand covering what they want to show, wires all over the place, no label, no number. I am not sure they aim people who are already experts in the subject matter or noobs like me. It is as if teaching/learning how to swim by immediately jumping into water and magically swim.

[AlperACU]

Here is the full code:

void setup() {
Serial.begin(115200);
}

void loop() {
int val = analogRead(A0);
Serial.println(val);
}

[OMNI_INFINITY]

Thanks! Was also pondering a 2 channel scope by recording it as audio and looking at the waveforms.

[dennisryckman]

Thanks for the video lesson! How do i tell what frequency ranges im looking at in the Serial Plotter? I just see my wave forms bouncing feom 0 to about 18. What arenthose numbers in relation to frequencies? Thank you!

[pavletrnic]

Is it possible to add another jumper to the arduino and have a 2 channel scope (with some code modifications)

[blazingscarabs-yt]

What is all that extra setup on the breadboard, I know your measuring an audio signal but I need to know how to do that?

[mrmeseas]

Mate super helpful I've been trying to test my Rochelle crystals and I confirm I did make them right and made a lil peizo speaker and some El paint substituted barium titanate with the Rochelle crystals and to my surprise that worked aswell a bit crude but the paint worked !!

[沈登獻-wu]

really helpful info and make me only search once to get this, great thanks.

[royo]

Hey, how did you connect that phone audio jack to the breadboard? Thanks

[fringeanomaly]

would it be fine to measure a motorcycle crank position sensor which outputs around 2 AC volts with this setup?

[nayeem]

how can I configure this for 5v ac power

[homemadetech]

I am probably really dumb for asking this question but why do we have to add the ground pin? I tested it out without the ground pin and it worked pretty well. Thank you if you answer this.

[matroskinas]

What is the maximum frequenze I can measure with that Arduino?

[nsfeliz]

the serial plotter has been right in front of me for two years. only now you tell me what its for. your so mean.i hate u😭 what's the max frequency it can handol?

[nsfeliz]

if I connect arduino to an instrumentation amplifier and connect the inputs of the amp to cables up to my body, I can have a crude heartbeat, ECG scope or monitor like those in a hospital. the serial plotter will give a graphical display of your heartbeat.

[ЛимонадДюшес-хб]

Hello. What program on Android do you use to watch oscillations? Give a link to the program, please.

[poikaa]

Is there need for a buffer resistor to lower the input voltage?

[gassanali]

Why is the oscilloscope output so unsteady? Is it real or is there a problem? Great effort btw.

[jancenj]

@1:42 the signal looks like noise. I'm expecting to see a sine wave.