Low Profile Light: Grindhouse Open Source Release
Low Profile Light is a tiny NFC powered LED implant. It is notable for being little more than 1cm^2 in area, and storing energy in supercapacitors instead of batteries.
I have seen a huge number of topics recently about NFC and the prospect of tiny LED implants, so i thought i'd share this, maybe someone can get something useful out of it.
It was developed as a successor to Northstar 1, but in the end we decided to focus on more feature-heavy implants, and this design was abandoned.
It is a full featured chassis, theoretically capable of communication, power, and wireless arduino code push, all through NFC. It can carry enough power to light the LED for one minute at 100% duty cycle. (or 10 minutes at 10%...).
This design has not yet been proven to work. It's only got two chips though so if you're keen it should be pretty easy to finish off. Or you can just copy the parts you like. We built two prototypes but never got around to doing anything with them.
I'm releasing it without any kind of license. You can modify the design, or even build and sell them if you want.
NFC chipset: AMS AS3955 (this thing is the star of the whole show).
Controller: Atmel ATTiny13
Tiny SMD supercaps: Seiko CPH3225A
included are Kicad files, bill of materials + part sources + expenses, and a picture of the layout.