A Poor Mans Logic Analyzer

In this video we will build a poor mans logic probe which uses your PC sound input to capture logic signals.
1.Build the “logic probe”
2. Set up the PC capture software
3. Reverse engineer a 433MHz RF remote with this “poor mans logic analyzer”
We will build up the test setup step by step and I will show some interesting details about audio inputs that I learned on the way.
Link to Arduino codes and excel file:
drive.google.c...
Audacity: www.audacityte...

[@racialhygiene]

This is very creative and the video is very clear and well put together. Thank you very much, this is exactly the kind of video I wish there was more of.

[@renemangosing9756]

Wow! Great video. Thank you very much sir!

[@odeds358]

Hi, could you input the excel also in link to download it, It will be great to see the calculation you did, Thanks

[@smartpowerelectronics8779]

Hi odeds358, just added it in the comments. Please try the link 🙂

[@odeds358]

Thanks, I learn a lot from your movies@@smartpowerelectronics8779

[@carloisdoingstupidtechstuff]

can I use it on a CRT from an iMac G3 so I can use it as an external display?

[@odeds358]

Thanks, I plan to try it. Is there tolerance in the resistors that I can use?

[@smartpowerelectronics8779]

Not too critical, it depends a bit on your PC, but for my case +/-50% is not a problem 🙂

[@PhG1961]

Waw, this is amazing! Great ingenuity! Where from?

[@smartpowerelectronics8779]

Thanks Philip, originally from the Netherlands 🙂
Originally planned to do this in an hour, I mean , EZ, how difficult can it be?
....it took me a 2 weeks to take all the hurdles..so lets say....I learned a lot about audio inputs.

[@PhG1961]

@@smartpowerelectronics8779 Cool! Ik meende al een Nederlandse/Belgische tongval te herkennen! Ik van België. Ik was verrast van de wijze waarop u de signalen gedecodeerd hebt. Knap staaltje!

[@smartpowerelectronics8779]

Haha precies, dat accent is wel duidelijk 🙂. By the way if you want to reverse engineer anything I suggest you buy a cheap clone logic analyzer, much easier to use.