An MP3 player powered by an esp32. It'll have bluetooth support, as well as built in speakers. A power, volume up, and volume down tactile buttons. and a knob via rotory encoder to select songs. A color screen to see album art and everything as well as usb charging and microSD card support.
I have finished routing the pcb!
I had to put the volume buttons on the side under the screen and resistors. but drc complains that it is in the courtyard of the sceen. I, however, dont care and will do it anyways since the header pins for the screen will be trimmed down after soldering.
I will work on making a transparent PETG case for this, then i will work on firmware after I built it!
I worked on the entire schematic for the mp3 player.
I used:
a Xiao ESP32 S3 Plus from seeedstudio as the mcu
a 2.8in ili9341 tft color screen
a MAX17048G+T10 to detect the lipo battery percentage
an AO3407A P-channel mosfet to seperate the peripheral’s power from the esp32’s
a rotary encoder for navigation and 2 push buttons for volume control
a MAX98357A to amplify the audio from the esp32 to drive a 8ohm 3W speaker
For a lipo i’ll probably use like a 2000 or 3000 mAh one
Next i will work on placing the parts into a pcb and then routing it
