Temperature always 500 using Max6675

jszxwcq · August 2017

Hi Sir,
I'm using the Max6675 to detect temperature, but always show 500, I was using onling configure tool, and changed temperature sensor, also I modified "pin.h", Max6675_SS according to my PCB, but it didn't work. Can you please help me and let me know where else need to be configured? thanks a lot.

Image: https://forum.repetier.com/uploads/editor/ys/vgrc9n8dg6s4.png

the temperature always 500.

Image: https://forum.repetier.com/uploads/editor/cj/igdaoo3gzgby.png

I changed Temperature sensor

Image: https://forum.repetier.com/uploads/editor/ra/hl7b9uibo20f.png

I changed MAX6675_SS

Repetier · August 2017

You can not use temp_0 for a thermistor. You need a analog input that is not connected with more electronic like the 4.7K resistor. Instead use the slave select pin for that, so Digital pin 58 from your screenshot.

jszxwcq · August 2017

Thanks so much, it works.

Temperature always 500 using Max6675

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