Improving and Porting the PID Controlled Current Source Design Over to an ATtiny85

So apparently the PID regulated current source using a switching regulator is a pretty popular thing, something that is searched for online quite often, at least that is what the blog stats indicate. In this post I will be taking things one step further, I will be discussing how and why I have ported the design to an ATtiny85 and most importantly the improvements I have made to minimize the steady state error to an almost zero. In case you have been following I would recommend you to go through the two article I have earlier leading up to this.”