Data in and out
Follow the photo to reference the correct orientation that the two rings will be connected. Note the left and right rings. The data out from the right ring will be connected to the data in on the left ring.
Ring Wire
Use a 3-wire silicone cover stranded core ribbon cable to connect the two rings together. Measure and cut a piece of ribbon cable to be 4.5cm (1.7in) in length. Use wire stripers to remove a bit of insulation from the tips of each wire. Tin the tips by adding a bit of solder. This will prevent the strands of wire from fraying.
Wire Left Ring
Solder the ribbon cable to the three pins on the left ring. GND, DI and 5V. Third helping hands keep the PCBs in place while soldering.
Wire Right Ring
Solder the ribbon cable from the left ring to the right ring. Connect GND to GND, DO to DI and 5V to 5V. A second pair of helping hands was used to assist in keeping the PCBs secured while soldering.
ItsyBItsy Wiring
Measure and cut a 3-wire ribbon cable to be 9.5cm (3.74in) in length. Use wire stripers to remove a bit of insulation from the tips of each wire. Tin the tips by adding a bit of solder. This will prevent the strands of wire from fraying.
Connect Wire to Right Ring
Attach the cable to the right ring by soldering the wires to the three pins. Use a helping hands tool to keep the PCB in place while soldering.
