Serial Communication MY1690X

Components & Accessories
1

Issue with MP3 over software serial using the MY1690X. I have tried several esp32 and use port 2, port 1 with mp3 fails example sketch provided with breakout board “check connection and freezing” . I have reloaded IDE as one suggestion per internet with no change. I purchased two and both are doing the same thing.

2

Can you share a photo of your setup?

3

FYI, both the units were tried using hardware Serial and both not working

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4

Is the power LED lit during attempted use?

5

Yes the power on led is on.

Thanks
Manny

6

TS-Russell, on both units the power led is on. Both fail with serial error that they are freezing on power up? Even when I try to send a command no respond from module but the freezing message.

Thanks,

Manny

7

Have you also tried softserial? Can you test alternate i2c bus?

It’s fairly unlikely that both would be defective, so I’m thinking something else is going on

8

TS-Russell, I have not tried softserial on esp32. The example show you can use hardware Serial and that what am trying to do. I was not aware I could use i2c on the mp3 player? Also, have you all tried on the bench on a esp32 via hardware serial as the SF example shows to uncomment serial hardware and comment out software Serial? Does the mp3 player work on 3.3 volts on hardware serial as stated?

Thanks,

Manny

9

Can you try with an Arduino Uno R3 or a Sparkfun redboard qwiic? Those are known good boards with the MY1690X + the code in the hookup guide.