PaulEE:
I'm pretty new to arduino programming & I'm trying to make a simple little unit which will control my pipe welding kit, basically I operate the welding arc myself then I start the wire feed once the material heats up enough & after about 1/2 second I start up the turntable & then stop everything in reverse. I've basically got it working but I've got to keep tapping the up/down keys on my 16 digit keypad to set the timing, I know there's a way of making the delay value time go up & down fast on its own when I hold the key
If the key is down, then
if the key was up, then increment the value and make a note of the time
otherwise, if the key was already down, AND it has been 250ms since the last increment, then increment the value and make a note of the time