Raspberry Pi + Adafruit LCD Keypad Pi-Plate Wrist Mount
by sciguy14, published
I used this for my "Control My Cap" Project, wherein a web-connected Raspberry Pi on my wrist was used to control a light-up display on my graduation mortar board. You can learn more here: jeremyblum.com/portfolio/control-my-cap/
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Great design! It'd be awesome to make a bottom that fits the Adafruit low profile micro SD holder (http://www.adafruit.com/produc... so it doesn't stick out so much on your arm. If I knew CAD I'd do it myself.
I used the powersupply from http://www.thingiverse.com/thi.... The batteries that are connected are 18650 cells, 3 of some random laptop battery, configured as 3SP1 so supplying ~11.1 volt.
Do you (or anybody else) have rechargeable Li-Ion recommendation for the Pi?
Another note, the Host USB ports on the Pi connected to the main 5V power rail on the PI. This is an unfused connection (so do it at your own risk), but I actually powered my Pi via the host USB port, since the thing I was attaching it could supply steady 5V power. This enables to you have just one wire running in the right direction from the pi.
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