Jens HaukeThis is an older version of the LED Ring. PCB-less, hand-wired on a small acrylic sheet. Holes are drilled with 0.8mm and the thing is powered by two LR726 cells.
Version from 2016
A project log for LED ring
A charlieplexed 20 LED blinker with ATTiny45. Space efficient daisychained LED placing with shared anode/cathode soldering pads.
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.