Quote
DR1983
I currently assigned pin 12, as it should be correct. Would this be changed in Marlin to 4 in order to work?
No, in marlin that stays 12, as it is labeled on uno. You keep this style of notation, unless requested otherwise - e.g. usually the case with thermistors.
#define HEATER_0_PIN 0 // extruder (digital numbering)
#define HEATER_BED_PIN 1 // bed (digital numbering)
#define TEMP_0_PIN 4 // 4 is A4, this or other pin that has nothing attached to it MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!!
#define TEMP_BED_PIN 5 // 5 is A5, this or other pin that has nothing attached to it MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!!