In this Arduino Tutorial educ8s.tv is going to modify this analog Voltmeter and convert into an Analog Thermometer using Arduino and a DS18B20 temperature sensor.
Today we are going to learn how to use this analog voltmeter with Arduino and make it show the temperature instead of the voltage. As you can see, in this modified voltmeter, we can see the temperature in degrees Celsius. The temperature is measured by this digital sensor, a DS18B20 and it is then displayed on the voltmeter. I really like analog dials like this one, because they give a vintage look to the projects. Let’s now see how to achieve that result.
How to make an analog Thermometer with Arduino a DS18B20 and an analog Voltmeter – [Link]