Circuit Playground Temperature Sensor

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DeniseLab
 
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Circuit Playground Temperature Sensor

Post by DeniseLab »

Hello! My students are using the Circuit Playground Classic temperature sensor. The values it's returning have consistently seemed very high (by about 10 degrees). Has anyone had this issue? Thank you!

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mikeysklar
 
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Re: Circuit Playground Temperature Sensor

Post by mikeysklar »

The thermistor is located within a 1/4" to the processor so you should expect slightly elevated temperatures over the room ambient temperature.

Just curios which example code are you running and is it Arduino, CircuitPython or Makecode based?

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DeniseLab
 
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Re: Circuit Playground Temperature Sensor

Post by DeniseLab »

Thank you. I'm using Arduino and the temps are running a bit high and I intuitively told the kids that it was likely just ambient heat, so I'm glad that could be the answer. I can try to calibrate it over the temperature range we are using in the code to read a bit lower.

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mikeysklar
 
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Re: Circuit Playground Temperature Sensor

Post by mikeysklar »

You could plug in an external temp sensor to help with calibration. You could compare with the results with the onboard thermistor directly. You'll also want this adapter cable.

https://www.adafruit.com/product/1782
https://www.adafruit.com/product/3448

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