This is a DIY kit (requires soldering) to make your own LED badge and use it with SquareWear! The board measures 2″x2″ (5cmx5cm) and is fits 3mm LEDs. The kit comes with:
To use it, design a pixel pattern you like, such as a smiley, a heart, or a letter etc. Then insert LEDs to the corresponding pins. The longer (positive) lead of the LED should go into the pin marked ‘+‘. Half-grid points are allowed, as long as the longer lead goes into a ‘+’ pin. All LEDs are connected in parallel, so they will all light up together. You can fit a SquareWear behind this board (using double sided tape and appropriate insulation) to make a standalone LED badge.
The board has sewable pin holes on the four corners. To control it with SquareWear, connect the + sewable pin to SquareWear’s Vdd, and -sewable pin to one of the power sink pins.