Arduino Stops working when switching mosfet under load

[larryd]

So hopefully editing the diagram he/she seems to understand, may be "clearer".

Yes.

The first thing often omitted is starting with a 'good' schematic.   

[AaronSilas]

Hey you guys
I thank you for your help. And yes your right id probably deserve to get shot. Because the problem was just rushing and not thinking about it and an absolute shit solder job. What I basically did was just redo the whole thing because it looked absolutely abysmal. Also I added a few diodes on the outputs because there was a short there I didnt see when I planned the thing. Who would have known if you do shit properly it actually works...

[TomGeorge]

Hi,
Can you tell us exactly what you are trying to do with two motors and four relays?

Just turn 2 motors ON and OFF with braking effect, or trying to get FWD/REV/STOP.

If just ON/OFF you only need one relay for each motor, and you still have the relays wired wrong, the diodes should be across the relay coils.

Thanks..  Tom....