uno continues to stall

Projects Programming
1

this is the control for my parking heater.
Uno is main control and mega thermostat

have the Uno working.
Also have the mega working.
But if I operate the Uno with the push buttons it works 100%.
But if, for example, I get a start comando from the mega on the Uno, he is stuck in a few lines.
the Uno also runs more often when he is not connected to the mega.

would it be too much for an Uno and should I go to the mega?

this is when the Uno is manually operated:

myserial started START PROCEDURE: 1 - Ventilator HIGH - Glow Plug HIGH - H_L HIGH - Fuel Pump HIGH STARTEN MISLUKT gloeispiraal LOW brandstofpomp LOW START PROCEDURE: 2 - Ventilator HIGH - Glow Plug HIGH - H_L HIGH - Fuel Pump HIGH - Glow Plug LOW START PROCEDURE COMPLETE

READY FOR ANOTHER COMMAND

and here he hangs on the mega's comando:

myserial started a START PROCEDURE: 1 - Ventilator HIGH

and does not do anything anymore to a reset!

standkachel_17_02_19_org.zip (17.3 KB)

Temperature_Control_17_02_19_org.zip (20.5 KB)

2

You won't get much help while you make everyone download and unzip your files. You will get faster and better help if you post your code in accordance with the forum guidelines in the how to use this forum sticky.

3

if it was not that big I did that immediately.
but that was not possible

do not think it's up to the code either.
the Uno only has the A0 to A5 free and a large program.

Go this week to put a mega in its place.
think it works well with a mega