Project guidance sencor/analog

Projects General Guidance
1

I am an student my project is phone call detector using rf circuit and arduino rf circuit noticies change in frequency when call happens ,i am using arduino to detect small changes of frequency ,before in first attemt it worked but after few days it stopped working i didnt dusturbe any connection but it stop working hel me debugg this

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Sorry to hear about your troubles, and glad you could get that off your chest. Since you haven't provided any details (like a properly formatted sketch, clear schematic, photos of actual wiring, what "stopped working" means in detail), all I can say is good luck if you decide to fix it.

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Care to explain how you are doing this?

1 Like
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No problem, glad to help. The orange wire should be blue and the pink one needs to be replaced it is in the high impedance state.

Please keep in mind that we are not a free design or code-writing service. We’re more than happy to help with your design or code, but we need you to make an initial attempt. Please design and write your code, then post it along with an annotated schematic and an explanation of what’s not working properly. There is also a for hire section if you want to pay for it.

I would assume the teacher/professor expects you to learn how to do this and understand what you did. This is basic material and if you do not master this you will have an increasingly difficult time.

  1. Show Your Work First: Before asking for assistance, make an attempt to design or write the code yourself. Share your work along with details about what isn’t working. That includes a preliminary schematic that you drew.
  2. Provide Clear Documentation: Since we can’t see your project, share an annotated schematic (best) or a clear drawing of your setup. Clear Pictures are welcome, but avoid using Fritzing diagrams as they are wiring diagrams, not schematics, and are not ideal for troubleshooting.
  3. Include Technical Details: If there is specific hardware involved, include links to technical information. There are often many versions of similar components, so precise details are essential. I will assume the processor is a UNO. Many times the processor is stated as ESP32, please state which one and post a link to it.
  4. Reference Resources: For additional help, check out useful links and tutorials: Useful Links on Arduino Forum. Of course one of the better sources of information (in my opinion) is the Arduino Cookbook. Skim it cover to cover and stop on any project that interests you.