Thermistor not work

Basic Information:

MCU / Printerboard: raspberry pi pico

I tried connecting a 100k thermistor to the peak and this was the result…

lmao

I base it on this

Although “”“it worked”“” but the results it gave were wrong, it was at more than 100 degrees when it is 26 degrees outside… I managed to be moderately stable with the resistance…

I didn’t find anything similar to a 100k thermistor connected to the pico and using klipper

First off, please follow the template when you put in the request. I’m asking that because the first thing that I would like to look at in this case is your klippy.log file. Using a 10k pull up for a thermistor is somewhat unusual, the most common value is 4.7k.

Secondly, if you’re working on developing your own board and need help, you’re going to have to provide a lot more information. What is the thermistor that you’re using (Part number, resistance at 25C and the thermistor’s “Beta” value). When working with a thermistor like this, providing us with the ambient temperature of the room would be helpful as well. Photographs of the actual hardware are also helpful.

Without more to go on (ie the information requested above) and looking at your results, it appears that you have a flaky electrical connections. If you’re using a breadboard, like in the picture, it could be that the breadboard is worn out and the spring connections are loose.

If you’re going to be asking for help, it’s a good plan to share everything right up front. Don’t make the people you’re asking for help work to get the information required.

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thank you very much myke, I just changed the 10k resistor for a 4.7k one and soldered everything directly.

Once this was done, I got a much more stable temperature similar to room temperature, which is 26 degrees.
image

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