I have set up a 555 Timer circuit on my breadboard following this diagram.
These are the values I use:
R1: 1k
R2: 1k
C: 0.1uf
Vcc: 9V
The only problem is, on pin 5, I have a 0.001uf capacitor. When I connect the circuit, the led I have on pin 3 (normally I have an 8 ohm speaker but I wanted to see if any current was being produced) doesn't light up. Here is a picture of my breadboard. (Sorry for the horrible wiring… And the extremely large image)
The bigger capacitor is 0.1uf and the smaller is 0.001uf. Also, wire colors don't mean a thing (again… sorry).
Thanks in advance for your help.
Best Answer
I can't see from your picture: does the yellow wire go to pin 8 and the white wire go to pin 7?
The easiest way to troubleshoot this is to use your LED as a test light.
Disconnect the lead that goes from pin 3 and connect it to your +V rail. Does the LED light?
Now take that lead and check pins 4 & 8. Does the LED light?