Short Headers and Sockets

We used short strips of socket headers on the QT Py to keep the circuit low-profile and project compact.

Plan Wires

You'll want to measure out your wire connections depending on where you want to install the NeoPixel LEDs and the QT Py. You can cut down on some of the wiring by sharing power and ground connections across the two NeoPixel Jewels with a ribbon silicone cable.

Mickey Ear Wires Lengths:

Left ear: 24.5 cm

Right ear (QT Py Case Side): 18.5 cm

Solder Connections

The wired connections are soldered to the top of the QT Py with them running underneath the PCB.

Sew Neopixels

The two mounting holes on the NeoPixel Jewels are then sewn to the fabric with a needle and thread.

Lipo Pocket

You can create a pocket for the Lipo battery by measuring and cutting a small slit on the side of the headbands with a hobby knife. These were big enough to fit a 1200mAh lipo battery.

Lipo JST

You can route the battery cable in between the QTPy and LiPo BFF before plugging it into the JST port.

Assemble QT Py case

The QT Py case snap fits together and features a cutout for connecting a flexible TPU band into the side of the case. The TPU band can be wrapped around the headband to attach them together.

Place Slide Switch

A slide switch add-on piece lets you easily turn the circuit on and off.

Press fit case

Align the wires to the cutouts on the case and press fit the two side together.

A piece of twisty tie wire can help to keep the cable taught to the headband.