Kit of parts
Below is listing of parts included in the kit sold on Tindie.
Itsy Bitsy M4 microcontroller, pre-programmed (not shown).
Custom-made POV controller for ItsyBitsy, containing Inertial Motion Unit, battery charge circuit, and more.
Two Power Distribution Boards (PDB). Note: the PDB exists in two variants, PDB-A and PDB-B. Choose the variant that matches the order of signals on your LED strip (see below)
Three wire harnesses:
4-wire, 28 cm battery wire harness (black)
Battery and switch wire harness (long, with red wire)
Controller wire harness (5 wire, 55cm, black, with JST XH connector at one end)
A length of solid core 22 AWG wire, to use as LED leads.
A rocker switch
Shrink tubing: 12 cm of 20mm diameter tubing
Two PVC endcaps
Tennis grip tape
EVA foam (6mm thick)
Zipties (2mm wide)
(Optional) Set of 3d printed spacers (colors may vary)
Power Distribution Board variants
As mentioned above, there are two variants of the kit which contain different Power Distribution Boards: PDB-A and PDB-B. The correct option for you depends on the order of signals on your LED strips; unfortunately, there is no standard order.
Place the strip horizontally so that the signal travels from left to right.
If the top signal is Ground (usually labeled G) and bottom signal is 5V, then you need variant A.
If the top signal is 5V and bottom signal is Ground, you need variant B.
Original vendor links
For those who want to buy the parts on your own instead of using the kit, here are the links to original vendors. Most users do not need this information.
4 wire, 22 AWG silicone insulated flat cable (used by battery harness): Aliexpress
5 wire, 24 AWG silicone insulated flat cable (used by controller harness): Aliexpress
2 wire, 20 AWG silicone insulated flat cable (used by switch harness): Aliexpress
20 AWG silicone insulated wire (red) (for battery harness for positive terminals)
1 inch wide PVC caps: Amazon
20mm diameter shrink wrap: Amazon
2mm wide zipties: Amazon
Switch: RRA1534400 from Mouser
3.5 mm bullet connectors: Amazon
EVA foam (6mm thick, black): Amazon