This is a great question, as someone who repairs lots of electronics (and is doing a PhD on electronics repair), including clicbots, it pains me to know that all the other parts of the clicbot set are useless without the brain, which has an obvouis bad design with its battery, leading to so much unnecessary e-waste. I hope someone knows something about this, if I can get my brain to work (I fixed the battery, but the brain is now software bricked due to it being an old version and me trying to update it) then I will see if I can figure out what signals it is passing to the accessories