I just started arduino project with the original arduino starter kit. I was trying to do the series circuit, where you need to push two switches simultaneously to light up the LED.
In photo.jpg (see attachedment), it DID NOT work for reasons I didn't understand. To troubleshoot it, I replaced the second switch with a wire (see photo(1).jpg), and the it worked.
I know it is very basic. I tried various things but couldn't figure out what went wrong.
Any help is very much appreciated.....
If you have the circuit working with one pushbutton, try swapping the other pushbutton in its place. You could have a defective pushbutton. Otherwise, it should work with two if you push both at the same time. That pushbutton should make a closed circuit on either side so you might also try turning the button in the breadboard 180 degrees (same with the swap button).
thanks for you reply.
I tried undoing everything, and redoing everything at different positions on the breadboard. Somehow it is working now....
it is really a mystery to me why it didn't work before...... I could have sworn I checked every single thing... making sure the legs were firmly connected, testing with different switches and LEDs and wires.....
never mind, it is working now! thanks!
I have used those little pushbuttons and they are touchy as far as making good contact with the breadboard. The legs are a bit too short so they barely plug in.
It could also be that your breadboard has a broken contact where you plugged stuff into it (or possibly you have a wire that has a break inside of it).
