Raspberry Pi Pico Oscilloscope for your Smart Phone Tablet, Scoppy Oscilloscope
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- เผยแพร่เมื่อ 15 มี.ค. 2022
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Project Description:
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In today’s episode, you will learn how to make a Raspberry Pi Pico based Oscilloscope and logic analyzer powered by an Android Smart phone or Tablet. An oscilloscope is the most essential tool in all of electronics. It is used to graph an electrical signal as it varies over time. Sooner or later you will need an Oscilloscope for Analyzing low or high-frequency PWM signals, you will need it for testing your analog or digital sensors, you will also need an Oscilloscope for testing your timing circuits, wireless devices, function generators, and so on.
The Multimeter and Oscilloscope are two very important measurement tools used extensively for analyzing and diagnosing electrical and electronic circuits, components, devices, etc.
Multimeters are cheap and Oscilloscopes are too expensive and that’s why I decided to make myself the cheapest Oscilloscope on this planet which cost me only 5 dollars. You don’t have to write even a single line of code both the firmware and App are free to download. All you need is to download the Scoppy Oscilloscope firmware from Github, upload it to your Raspberry Pi Pico and you are good to go.
Scoppy App has got lots of buttons; but don’t worry I will explain each and every button and of course I will also explain how to use all these buttons.
After building the Raspberry Pi Pico Oscilloscope then I will share with you test results including,
1. Capacitor charge and discharge testing.
2. Testing an Analog Sensor and
3. We will be measuring the Arduino PWM Signal.
So, without any further delay, let’s get started!!!
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#ScoppyOscilloscope
#RaspberryPiPico
#SmartPhoneOscilloscope - วิทยาศาสตร์และเทคโนโลยี
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Very, very well done vid!
Excellent content. I'll put this together during tomorrow morning's coffee.
As an engineer, I had thousands of hours of scope and logic analyzer use under my belt. Now, 20 years later, I'll purchase a $400 200Mh scope from Amazon, but not for several months.
A few years ago, I watched a similar vid but never followed up in it. I will this time because I actually have serious use for it now.
Thanks for producing this vid. It's very timely for me. You really did a good job.......
Excellent job there, very well done with tons of potential for future projects. Thanks a bunch for the app - I immediately got the paid version and subbed to your channel. Keep it up!
Hey. Would it be possible to use the Pi Zero 2W ? And can you put out the signal via Composite?
I am converting Tiny 5 inch CRTs to portable Arcades and thought if it already has a Pi why not include an Oscilloscope application as well?.
Excellent 👌👌👌👌👌
Amazing !
فكرة مفيدة للغاية
Awesome.
Great !!!
Best beginners level oscilloscope.
Nice
The limitations of this solution seem to be the very limited voltage range and probably the sample-rate.
0:57 Это было неожиданно) На совершенно случайном видео на английском языке встретить наш советский осцилограф С1-93, за которым несколько лет проработал)
Is it working on esp32 ?
& how to build 2nd ch for premium upgrade version?
Hi Great Tutorial, can we also check negative signals using this, for example +- 12 v PWM signal, what would be setup on Pico side to measure negative part of the Signal. Thanks
th-cam.com/video/L8MfcUX7NTg/w-d-xo.html at around 4:44, its possible, something about making a floating ground to make that work.
You'd need to use a voltage divider or something similar to bring it into a safe voltage range and for the negative voltage handling I believe there are some chips that can detect a negative voltage but you'd need to get the voltage as a positive value as you'd break the pico otherwise. Then with software you detect whether a pin for negative is high and then take the input of the divided voltage multiply by what it was divided by and then by 1 or -1 depending on sign. At least afaik
sorry for noobiness on this one ,what whould the main benifits of using the pico ,compared with say a bunch of resisters straight into the headphone socket type of build ?
I'd say few benefits 1) using the mic input you can display the waveform but you can't know exactly the actual voltages 2) the sampling rate of the built in microphone is very limited 3) the voltage range of the built in mic is definitely smaller then 3.3V of pico and therefore you need to use much higher resistors divider which lowers the resolution and quality of the signal visualization 4) if you connect the headphone and something goes wrong... you may end up with a broken phone which costs much more than the pico 5) the pico can also have a wifi module and the phone can display the signal in full wireless mode
@@halnovemila9698 yep ive got you, i have a spare pi 4 the code should be ok for that to shouldnt it
please what is the maximum voltage and frequency this oscilliscope can measure
the potentiometer is 10k or 100k ?
I wonder if this could be made to work wirelessly with the new pico w.
it is working and j am using
@@shauryaaditya169 can you please share the method for PicoW ?
@@shauryaaditya169
Do scoopy has wifi or Bluetooth
Dear sir, I have failed to firmware pico(made in India). Request to make a long video about firmware
Post more video bro
I dont know English very well
Plz tell me what is maximum frequency can i measure using this scope?
Can I see the sine wave
What i can use arduino uno on this application scoppy
aurduino wont work.
What is the bandwidth of the scope 1MHz or higher?
more like ~100 kHz
Can i use arduino board instead of rasp pico ?
no.
I have only arduinodroid coding app how is that?
Max voltage to be measured
Why you used a 100k and 1k resistors excactly ?why not 120 or 220...
1/100 of input voltage. for normal value in osciloscope (1/100 of input).
@@orkoteg09 Can you explain more sir ,and thanks
Plz reply ...
Wow!
A 1kHz scope!
For only $5 plus a $300 'phone.
Hahahahaha, you already have a phone.
@@ElectroniClinic I already have a Tektronix 'scope.
By your strange logic:
cost of 100MHz scope: $0.
@@ElectroniClinic or a $50 amazon fire tablet maybe
What a dumb comment. It is assumed everyone has a phone.
You can probably do a better one with a bluetooth bud and audio oscilloscope app