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3 questions
1
vote
2
answers
104
views
How can I down mix stereo to mono audio on a DFPlayer Pro?
I am trying to make an MP3 speaker using a DFPlayer Pro.
The processor generates a DAC left and DAC right which are then fed into a stereo amplifier which generates the L+/- and R+/- to go to the ...
- 107
1
vote
2
answers
5k
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DFPlayer + amplifier give weird noise
I connected a DFPlayer with a PAM8403 on pin DAC_R like this:
I also added capacitor on the supply line.
Here the sound i have from the speaker:
You can lisen here: https://www.dropbox.com/s/...
- 9
1
vote
0
answers
2k
views
DFPlayer Module Sleep mode working for anyone?
I'm trying to put a DFPlayer module into sleep mode.
The command seems to be: 7E FF 06 0A 00 00 00 FE F1 EF. The normal power consumption my supply is showing (when the module is idle) is about 15mA, ...
- 1,902