A ring oscillator made of DCOI (Dual Complementary Opto-Isolator) elements.
https://hackaday.com/2015/01/09/dual-complementary-optoisolator-logic/
https://hackaday.com/2015/01/09/dual-complementary-optoisolator-logic/
By Julian
Youtuber, shed dweller, solar charge controller aficionado
you could make a handful of jellybeans oscillate. what an awesome circuit
what projects r they used in, useage?
love the kickstart wire.
I think the bigger problem here is that whatever you build is going to increasingly die after 1000 hours. That clock wave looked like shit, anyway. Maybe just use these for the gates and use a more suitable method for the clock. You would have had to run your output wave through a Schmitt trigger to clean it up so, just use a Schmitt trigger hex inverter as the oscillator. You could use one input as the oscillator and then feed the output of that to the rest of the chip in parallel. You get an oscillator and a charge pump. Unfortunately, you can't put a heck of a lot of amps on that, though. You'd be lucky to drive 20mA.
I wonder….just using 1 pair of opto-isos instead of a cap in the middle could a motor be put there and used as an H-bridge? I know it wouldn't be very strong as far as amperage.
lot off bla bla..so skip
Build this with IR LEDs instead of the red and green, power it with a couple of coin cells, stuff it into a hatband with the LEDs sticking out, and watch what fun things it does to surveillance cameras… 🙂
So a DCOI computer would be larger than the first one I worked on! Elliott 803b!! lol
Very nice looking
Been having a lot of good results from HCPL-4701 Broadcom opto's , they do a whooping 3500% transfer and will do 400% with an input as low as 40µA .
You could even be cheeky and call it an optical computer. *whistle*
The breadboard layout is not symmetrical at all. It just has repeating units.