I'm running Ramps 1.4, Arduino 2560, Marlin firmware. I have been running successfully until now that I have installed a Heated bed with thermistor. I cant get the firmware settings correct, I have verified the thermistor and wiring. When I uncomment the
#define BED_MAXTEMP
The max temp is triggered and both the extruder and HPB read 200 degrees even though they are both at room temp. I usually use Reptier-Host but also tried Kliment-printrun and get the same error.
I'm about ready to toss the HPB out the window, I've been working on this for weeks now.
Thanks for any help
