Hello, I have a problem with this project it works well but the FM module TEA5767 makes noise. This is a UNO board I2C connection problem is SCL pin. In the thread on the forum I found a solution:
Biri3d found a solution at the end of the thread, but I'm just a beginner and I can't know the code and I put a break in there. Could none of them help me?Alternatively, refine this code:
So that it doesn't make a fuss just when switching fm stations. Thank you very much for your help and I apologize if I wrote something wrong.
That's not really a software solution Biri3d added some hardware to do that. A huge overkill in my opinion but I never tried that module.
I guess there's a wrong wiring of some kind or the TEA5767 breakout board is badly designed (often the case with cheap Chinese boards from Ali).
Post the wiring diagram of your setup and the schematics of the board you use, maybe we can suggest a solution.
I don't have a scheme. I connected it according to the sketch.If I disconnect the SCL pin it cracks and the noise disappears. Also, when I hold down the restart button on the UNO board the sound is clear.The SCL pin on the OLED display can keep the sound is clean.I also tried a completely simple sketch, everything plays there cleanly. This is probably due to the connection of the OLED display and the TEA5767 module to I2C.
Thank you for trying to help .
Yes, that's probably the case. You have to option to use the solution Biri3d suggested (using a relay to disconnect SCL from the board if not used. Or you don't send anything to the display while radio is playing.
For all other solutions we need to know exactly what hardware you're using (no, "TEA5767" isn't enough, there must be more circuitry on that board, good suppliers provide schematics for their boards) and how you wired it (all connections, not just the I2C signals).