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Hi,
I used this microcontroller: Esp32 TTGO T-Call, this RGB module and this battery.
My problem is the following one:
The microcontroller is connected to the battery, then I connected the RGB module to the microcontroller and I write a simple code to test. It was successful since the RGB module...
I upgraded the setup and attached it. The problem is the following one: If I cover the Adafruit UDA 1334 with my hand it sounds great and has no noise. Without my hand, it is still noisy. What can be the problem?
Thank you for helping me out.
I think the esp32's DAC only has positive voltage. I found this: https://www.adafruit.com/product/3678 (In my opinion with that I will get a negative voltage too.)
Is it a good idea?
Hello, thank you.
I used these two speakers: https://www.hestore.hu/prod_10037421.html
This is the library I used: https://github.com/pschatzmann/esp32_bt_music_receiver
I am using an amplifier but there is no difference except the volume. (I don't want to make the sematic more complex if there...
Hello
I am trying to make a Bluetooth speaker. I use an esp32, that receives the media from Bluetooth and the microcontroller sends it to the internal DAC (8bit). The DAC pins are routed to the speaker. The sound has noise. What do I have to do to avoid the noise? I attached the connection...
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