Remap BED Hotend0 Hotend1 ( heater_thermistor) - markniu/PandaPi GitHub Wiki
for example, if you want use the second hotend heater/thermistor as the Bed heater/bed thermistor,
just change the index number in pins_PANDA_PI.h as follow.
before:
#define HOTBED_CODE 0
#define HOTEND_0_CODE 1
#define HOTEND_1_CODE 2
after:
#define HOTBED_CODE 2
#define HOTEND_0_CODE 1
#define HOTEND_1_CODE 0