LMRBot V2.1

I decided to make a robot that looks similar with the one from LMR logo. I wanted to make it at a small scale, but I realized I don’t have enough space to place the battery, and I have had to buy a smaller battery LI-Po.

Being short of money I decided to use AA battery and to do small changes on the robot design.

The brain  is handmade. It took me hours to shape it out of plasticine and that was the hardest part.

Also, for design, I used a little engine which is pumping air into the water bowl, that making little air bubbles around the brain. More, I placed a RGB led under the brain to give a mysterious light and make it look better.

I have a problem with the cod, servo doesn’t move.

UPDATE 1:

I solved the problem with the code and now it works fine.
I PWM just for servo.
I will post video tomorrow morning with robot running. I have not put water yet in the bowl, I still expect to harden the glue. I hope it do not have holes in the glue

UPDATE 2:

These is the final shape of my robot. I can't update a video yet because servo broke during the tests. I hope i can solve these problem tomorrow. 

I am waiting your suggestions.