Jens Hauke-
Recycling an IKEA light bulp
05/27/2020 at 21:03 • 0 commentsThis 40 LED version recycled the PCB of a 600lm IKEA light bulb. Adding some additional wires, attach an ATTiny44 find a matching charlieplexing pattern and there it is. No need for KiCAD this time ;-).
BTW. There are 36 LEDs around. This are 3 LEDs per hour, if this would be a clock. Is that gonna be a clock? …
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Version from 2016
01/30/2018 at 09:55 • 0 commentsThis 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.
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PCB?
01/06/2018 at 13:39 • 2 comments -
A simple animation
12/28/2017 at 21:59 • 0 commentsFront view
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![I am still a beginner in SMD soldering :-)]( "I am still a beginner in SMD soldering :-)")
Back
![Back]( "Back")
PCB
![back from perfect purple PCB service]( "back from perfect purple PCB service")
LED ring
A charlieplexed 20 LED blinker with ATTiny45. Space efficient daisychained LED placing with shared anode/cathode soldering pads.
