# Custom Thermistor and adc\_temperature

**URL:** <https://klipper.discourse.group/t/custom-thermistor-and-adc-temperature/15229>\
**Category:** General Discussion\
**Created:** [March 26, 2024, 6:00am UTC](https://klipper.discourse.group/t/custom-thermistor-and-adc-temperature/15229 "2024-03-26T06:00:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![flexbex](https://avatars.discourse-cdn.com/v4/letter/f/87869e/32.png) [@flexbex](https://klipper.discourse.group/u/flexbex)\
**Post date:** [March 26, 2024, 6:00am UTC](https://klipper.discourse.group/t/custom-thermistor-and-adc-temperature/15229/1 "2024-03-26T06:00:10Z")

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Hi in the manual [I found the note](https://www.klipper3d.org/Config_Reference.html#thermistors) about adc\_temperature and custom thermistor. I’m not really sure on how to use it. the custom temperature I would simply use like this?

[thermistor my\_temp\_sensor]  
temperature1: 1111  
resistance1:222  
temperature2: 3333  
resistance2:333  
temperature3: 44444  
resistance3:444

[extruder]  
…  
sensor\_type: my\_temp\_sensor

and for the ADC type I could do it like this? So I could use as many data points I want? At least if I stay reasonable I guess \<1000

[adc\_temperature my\_adc\_temp\_sensor]  
temperature1:  
voltage1:  
temperature2:  
voltage2:  
…  
temperature300:  
voltage300:

[extruder]  
…  
sensor\_type: my\_adc\_temp\_sensor

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<div class="post-metadata">

**Author:** ![LifeOfBrian](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/lifeofbrian/32/2380_2.png) [@LifeOfBrian](https://klipper.discourse.group/u/LifeOfBrian)\
**Post date:** [March 26, 2024, 7:33am UTC](https://klipper.discourse.group/t/custom-thermistor-and-adc-temperature/15229/2 "2024-03-26T07:33:29Z")

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Looks right to me.  
An example would look like this:

```auto
[thermistor bed_thermistor]
temperature1: 44
resistance1: 35899
temperature2: 75
resistance2: 14760
temperature3: 100
resistance3: 6710

```

You have to measure the resistance of your custom thermistor for the particular temperature.  
With those three points Klipper can interpolate/reconstruct the temperature curve.

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\
**Post date:** [May 25, 2024, 7:33am UTC](https://klipper.discourse.group/t/custom-thermistor-and-adc-temperature/15229/3 "2024-05-25T07:33:57Z")

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Closed on May 25, 2024, 7:33am UTC

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