Wiring USB-C Breakout
Measure and cut the USB-C cable so it's 4 inches (10cm) in length.
Using a wire stripper, remove about an inch of insulation to expose the four colored wires. Strip some insulation from their tips.
Solder the four wires to the following pins on the USB-C Breakout:
- Green wire to D+ pin
- White wire to D– pin
- Black wire to GND pin
- Red wire to VBUS pin
Solder Headers to QT Py & BFF
QT Py and BFF boards are connected "belly-to-belly".
Install and solder two 1x7 socket female headers to the NeoPixel BFF Driver board's bottom side.
Install and solder two 1x7 male header pins to the QT Py ESP32 Pico's bottom side.
Install QT Py to BFF
Orient the QT PY ESP32 Pico with the NeoPixel BFF Driver board so the USB port is lined up with the 2-pin JST PH connector.
Plug in the QT PY ESP32 Pico to the NeoPixel BFF Driver board.
Hardware for Bottom Cover
Use the following hardware to secure the USB-C Breakout board to the bottom cover.
- 2x M2.5 x 10mm long screws
- 2x M2.5 hex nuts
Secure USB-C Breakout
Place the USB-C breakout PCB over the standoffs on the bottom cover.
Insert and fasten the screws through the mounting holes. Use the hex nuts to secure the USB-C breakout.
Solder LED Strips for Bottom Half
The bottom half of the sphere will need 85 NeoPixel LEDs. Connect two LED strips together by soldering their wires. Make sure the DATA OUT wire connects to the DATA IN wire. Cut the joined strips so it has a total of 85 LEDs. Replace the first LED's connector with the 3-pin JST PH connector. Use heat shrink tubing to insulated the exposed wire.
Soldering Connector for Bottom Half
Solder the 3-pin socket connector to the end of the strip. Use heat shrink tubing to insulate the exposed wire.
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