Starter Kit: Project 6 - Theremin help

I'm having trouble with the starter kit project 6: light theremin. I'm very new here, so please be kind with your comments about my ignorance; I'm here to learn. Short version, I can produce a theremin like sound, but the light sensor isn't registering, so the sound does not change.

When I started, I followed the steps in the book, but all I got was a dull buzzing sound, that was not theremin sounding at all. So, as a first step, I went to YouTube and watched the official video, and I noticed two things different between the book what was shown: the setup and the code. I changed both to the video setup. My board setup, to match the video, is shown. That produced a theremin sound, as opposed to the buzz, but no variations when I covered the sensor.

Second, I thought the code might be off, so I checked the forums, and it appeared it was correct, but to be sure, I copied the code from this post, and pasted that directly. No change - I got the same results, so, it's not the code (at least in my mind). I did think the sensorHigh and sensorLow values were reversed, but after reading through several posts, that is not the case.

Third, I thought, maybe I have a bad sensor, so I tried every one in the starter kit. All of them produced the same result (or, rather, didn't produce any results). So, that's probably not it. I tried in different rooms, with different lights on and off, incase that was the problem, but that hasn't produced any noticeable change.

This is leading me to believe I have made a setup mistake, though I'm not sure what it could be. If you have suggestions on where I should look, or what I have done wrong, I would appreciate the guidance. Thank you.

Know that all helpers don't play with that, whatever kit it is.

Good. All of us had to do that. Have a look at this link as a start: How to get the best out of this forum - Using Arduino / Project Guidance - Arduino Forum

Posting lots of text is not the way to go.

Hi,
the original design uses an LDR, but in the picture I'm seeing something that looks like a photo transistor.
Does your book indicate to use LDR or photo transistor?
Is my book different from yours?

Livro

And there's something wrong here.
The resistor is not connected to the photo transistor and on the other side I don't know where it is connected.

Board

2 Likes

@jmiller9 LDR (light dependent resistor)
ldr

I have found that in other help chat, the more detailed information you provide, the better. It prevents needless back and forth on items that don't matter.

As for not knowing the project, what would you have suggested I have done, aside from naming the project, posting a link to the YouTube video, and referencing other projects and code?

Thanks for your reply. The setup in the book is what I first did, but all I got was a buzzing sound. I went online and saw the YouTube video (link is above) and the setup was different from the book, which is what I showed in my photo.

The book indicated a photo transistor (see image below). For the resistor, it is placed in the ground (row 28 if it matters). Sorry for the poor picture quality; I should have made that more clear.

Okey.

Links to datasheet are often mandatory. Then we can suggest stuff that will not overheat or worse. Of course, giving You correct help is the intention but know that spoon feeding is not what we do. The goal for forum is helping members learn and grow in programming. The goal is not being a free gift shop giving members ready to use toys. Therefore the sometimes harsch attitude.

Videos takes time to view and that's not polite. Know that helpers do this on their free time without any compensation. There are extremely experienced and knowing helpers here, and me.
You should extract facts from videos, projects, and present them here.
You need to have some idea, some insight in what You want to do. Creating the project plans for You is above the intention of forum.

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