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The thermoresistor on my Anycubic Mega displays nonsense temperatures (e.g. 700 °C), since the resistor in the hotend is working fine the problem is 100 % in the board (Trigorilla RAMPS 1.4). Someone suggested switching the pin of the thermoresistor from T0 to T1, so I soldered it this way. Now I have to cook a personalized firmware for making it work. I opened a custom firmware in VSCode but I do not know what parameter I have to change, any idea?

agarza
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Antonio Esposito
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1 Answers1

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If there are 2 slots for temperature measurements, you don't need to solder anything, just plug the thermistor from one into the other and switch pins in the firmware. This board is basically a RAMPS 1.4 board, it includes the pins_RAMPS.h header file, so in order to switch the T0 with the T1 temperature port, you need to change:

//
// Temperature Sensors
//
#ifndef TEMP_0_PIN
  #define TEMP_0_PIN                          13  // Analog Input
#endif
#ifndef TEMP_1_PIN
  #define TEMP_1_PIN                          15  // Analog Input
#endif

to:

//
// Temperature Sensors
//
#ifndef TEMP_0_PIN
  #define TEMP_0_PIN                          15  // Analog Input
#endif
#ifndef TEMP_1_PIN
  #define TEMP_1_PIN                          13  // Analog Input
#endif
0scar
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    Ok, thanks. I had to solder the pins since there was no way to insert the cable directly into the board, i do not know how to explain it but f you see he inside of the Anycubic Mega you can understand it immediately. I have edited the firmware and build it but it bricked the printer, i think the board its faulty since previously also the bed heating probe stopped working. Thanks by the way. – Antonio Esposito Apr 01 '21 at 17:20