My team and I have a problem with programming and we are not sure how to fix the arm going up all the way then not going back down. Motors 6-9 are for the arm. [ATTACH]8674[/ATTACH]
You are probably tripping the PTCs (thermal fuse in the motor). You never send stop to the motors, change the code to be in this form (Pseudo code).
if( button to make lift go up is pressed )
send 127 to motors;
else
if( button to make lift go down is pressed )
send -127 to motors;
else
send 0 to motors;