I have removed all references to PIN 55 except CAM_FEEDBACK_PIN. I have checked my voltages to confirm CAM RELAY ON is LOW drops from 3.3 to a lower voltage and CAM FEEDBACK PIN is HIGH from mVolts to about 1.2volts and set parameters accordingly. I can still induce a Internal error on ISR FLOOD 55 when putting into auto and using trigger camera now. I use this method as I not aware of any other way to bench test this issue
@tridge @peterbarker do you have any further suggestions. Folder containing BIN and Parameters included.