/challenges-projects/design-challenges/experimenting-with-thermistors/b/challenge-blog/posts/blog-3-thermistors-minitutorial-part-2---measuring-temperature-using-thermistor-and-arduinoI welcome you to my next blog post as part of Experimenting with Thermistors Design Challenge . In previous 1st blog post I described my plans as part of this competition and in second blog post I started my series of 3 mini tutorials showing usage ofen-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/experimenting-with-thermistors/b/challenge-blog/posts/blog-3-thermistors-minitutorial-part-2---measuring-temperature-using-thermistor-and-arduinoSun, 31 Jul 2022 18:41:32 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8451afba-7d9d-47d5-bfa6-5bfeb6f94bf1DAB1<p>Nice basic test.</p> <p>Did you measure the actual resistance of the 2.2K ohm resistor or are you just using it stated value?</p> <p>What is the precision of the 2.2K resistor?</p><img src="https://community.element14.com/aggbug?PostID=24080&AppID=377&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/design-challenges/experimenting-with-thermistors/b/challenge-blog/posts/blog-3-thermistors-minitutorial-part-2---measuring-temperature-using-thermistor-and-arduinoFri, 29 Jul 2022 20:45:01 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8451afba-7d9d-47d5-bfa6-5bfeb6f94bf1shabaz1<p>Hi,</p> <p>It may be worth increasing the resistance, because 2.2 k ohm is rather low. With 5V across the circuit, there is power dissipation of several mW depending on the temperature, and this will result in the thermistor self-heating, causing errors of&nbsp;several degrees perhaps (on the other hand, this may be acceptable on the use-case, so this is just informational).</p><img src="https://community.element14.com/aggbug?PostID=24080&AppID=377&AppType=Weblog&ContentType=0" width="1" height="1">