The QT Py, BFFs, and EYESPI display make this project easy to assemble. The only soldering required is the headers on the BFFs and QT Py, and the molex picoblade connector wires to the speaker.
Solder Headers
First solder the following header types to the BFFs and QT Py. Make sure that you have the appropriate header paired with the correct board and that the header is facing the proper direction relative to the board. We have a learn guide that covers soldering headers if you're new to the process or want a refresher.
- QT Py ESP32-S2 - Standard male header pins
- I2S Audio BFF - Stacking female header pins
- EYESPI BFF - Standard female header pins
QT Py ESP32-S2
Standard male header with the pins going down on the side opposite the USB-C connector.
I2S Audio BFF
Stacking female header with the female header on the opposite side of the board from the speaker connection.
EYESPI BFF
Standard female header with the female header on the opposite side of the board from the EYESPI ribbon cable connector.
Strip an additional 1/4" or so of the insulation off the ends of the picoblade molex connector wires. Then loop the stripped wire sections through the holes on the speaker, fold it back on itself and solder the connection.
Display
First you must carefully flip up the dark grey flap that secures the ribbon. Gently slip your fingernail or a small flat head screw driver under it, then carefully pry upward. The flap is delicate so be careful, it should not require much force once you've got something up underneath it.
- Connect one end of the EYESPI ribbon cable to the EYESPI BFF.
- Connect the other end of the EYESPI ribbon cable to the GC9A01A breakout.
Both connections should have the blue tab facing upward. Insert the ribbon cable, then push down the flap to secure it.
Stack QT Py & BFFs
Connect the QT Py male header pins to the stacking female headers on the Audio BFF. Connect the standard female header pins on the EYESPI BFF to the stacking header pins on the Audio BFF.
The final stack should have the QT Py with its USB C connector face up on one side, and the ribbon cable connector on the EYESPI BFF facing up on the opposite side. The audio BFF with red and black wires coming out is in the middle.
Place into box
Carefully place the display into its slot at the front of the box, feeding the EYESPI ribbon cable down into its channel made by the two offset walls.
Set the QT Py and BFF stack into the open space behind the offset walls with the USB C connector pointing towards the USB Cable hole cut out of the side of the box. Plug in your desired USB C cable to power the project, feeding it through the hole.
Tuck the any extra speaker wire into the box and set the speaker on top of the QT Py and BFF stack.
Page last edited February 25, 2025
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