Currently I'm working on instrumentation amplifiers and the analog signal can't travel very far. So each one has its own AVR controlling it. Then there is a hig

Currently I'm working on instrumentation amplifiers and the analog signal can't travel very far. So each one has its own AVR controlling it. Then there is a high powered micro that collects and stores all the data. Or, there may not be enough pins. May use a small micros to watch all the user interface buttons (think like a keyboard controller) which communicates to the large micro.