Very cool project. I wonder if perhaps making the LEDs fade off and on with the same frequency instead of the abrupt transition would provide a nice effect too.
Nice job, such a nice little method to give life if you will to something which may otherwise be bland. Also, wouldn’t having a 10 and 4.7 microfarad capacitor in series give you roughly 3.2 microfarad? That may have been closer to your desired speed.
Could you run it with two timers in parallel? That way you could have it beat more realistically, no? Like .....-..-.....-..-.....-..-.....-..- etc.? Even make the first beat slightly weaker than the secondary, like a real heartbeat.😁
Theoretically that would work. However, since parts are not manufactured perfectly to spec, I don't think it would be possibly to get perfectly synced and consistent timing continuously. Not with just using discrete components. If someone knows differently, please speak up.
That would be really cool. A 555 generated a square wave. I would need to replace it with something that generates a sine wave or possibly uses PWM. Any ideas?
