This more advanced version adds a couple of nice upgrades to the basic model. By using an Adafruit Power Boost 1000C, you can boost the voltage from a 3.7V LiPo battery of your choice to 5V USB output, and you can add a remote charging port and on/off switch.
As far as the wiring for the LEDS, if you have questions about using seed/pebble NeoPixel strands, check out this excellent guide!
3D Printed Cases
Print two each of the case and lid for the Mini Sparkle Motion and the Power Boost 1000C.
NeoPixel Wiring & Case
Cut the connector from the NeoPixel strip input end and remove about 2mm of insulation.
Screw the wires to the Mini Sparkle Motion's terminal block as shown (you can alternately solder the wires directly to the Mini Sparkle Motion without terminal blocks as shown in the second photo):
- NeoPixel ground wire (black) to Mini Sparkle Motion G
- NeoPixel +V wire (red) to Mini Sparkle Motion 5V
- NeoPixel Data In wire (green) to Mini Sparkle Motion 33
Then, place the Mini Sparkle Motion in the case and close it up.
Power Boost Output Wiring
Using a 2" pair of wires, solder the USB C plug breakout's VBUS and GND pads to the Power Boost USB output + and - pads.
Note: the Power Boost ships with an unsoldered USB Type A connector, we won't be using that in order to save space.
Power Boost Input Wiring & Switch
Remove one outer leg from the switch using diagonal cutters.
Insert the center leg of the switch into the USB C downstream breakout GND pad and solder it -- don't clip the excess leg, we'll use that in a moment to solder the ground wire.
Using a 10" section of 3-conductor wire ribbon cable, connect the
- USB C downstream breakout VBUS to Power Boost USB pin
- USB C downstream breakout GND (it's easiest to solder this wire to the switch center leg that protrudes from the pad) to the Power Boost GND pin
- Switch NO leg (either outside leg) to Power Boost En pin
Battery
Plug in the LiPo battery. The switch will turn the Power Boost output on and off.
Plug in a USB C charger into the USB C downstream breakout and the LiPo will charge -- you'll see the yellow LED light up during charging.
Page last edited June 25, 2025
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