Here is a picture of an improved version of the circuit in the last picture.

Now everything is powered using batteries!
Here is a picture of an improved version of the circuit in the last picture.

Now everything is powered using batteries!
Here is the first picture showing some rough wiring of the mouth of one of our eMoodies. This shows one of the 10 possible smiles that we have enabled.

With some simple modifications to this circuit the Arduino microcontroller and the rest of the circuit could be powered using only batteries. But when taking this picture we were to lazy, hence the unnecessary wires