I was trying to put together a 555 Astable circuit on a breadboard and ran into problems so I built it on thingiverse and it doesn't seem to work as it should. The lower LED lights up and as the voltage across the 47 uf capacitor rises, the LED shuts off and the upper LED lights as it should.
But in the descriptions I've found online, as I understand it, the voltage should then drop making the upper LED go off and the lower one come back on. This does not happen. The voltage climbs to 12v and the upper LED stays on.
Am I missing something? Is my wiring correct?
Thanks for looking at this.
https://www.tinkercad.com/things/4d...e=mFnZyDiwSfegqobsMOjctQGiX1PNN1CD76tHvL4afQw
But in the descriptions I've found online, as I understand it, the voltage should then drop making the upper LED go off and the lower one come back on. This does not happen. The voltage climbs to 12v and the upper LED stays on.
Am I missing something? Is my wiring correct?
Thanks for looking at this.
https://www.tinkercad.com/things/4d...e=mFnZyDiwSfegqobsMOjctQGiX1PNN1CD76tHvL4afQw