11/12/2018
I made some progress last night with my Hexa S/W rebuild. Completely rebuilt the RPi S/W and also installed Ubuntu 16.4.4 and ROS on the master controller on a old laptop I found kicking about.
Today I am trying to visualise my electricals and electronics so I can work out where I'm having a power issue.
If anyone has more experience with these please give me a shout. There is a lot I need to learn and I just can't work out where I'm going wrong and overloading my Mega's each time.