![]() ![]() The following table will give you an overview about the possible maximum ADC voltages, how to change the setting in the script and how much of the value range is used. That’s why you can set the maximum ADC voltage to other values than 5V. This solution will work but you will only use 2.05V/5V = 41% of the digital value range. Based on the maximum ADC voltage the digital input of the LM35 temperature sensor is between *2.05/5 = 420. ![]() The default maximum ADC voltage of the Arduino board is 5V and equated to the value of 1023. If you connect the LM35 with an Arduino digital input pin, the internal Arduino analog-to-digital conversation (ADC) converts the analog voltage to a digital value between. For every degree of temperature change the sensor changes his resistance that the output voltage changes by 10 mV. One often used one wire temperature sensor is the LM35 with an operating temperature range of -55☌…150☌. The one wire temperature sensor changes the resistance based on the current temperature. ![]()
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