Using Resistance to measure temperature
In preparation for my final project I wanted to read the temperature the nichrome wire I am using for my robotic foam cutter.
It turns out that it is pretty straight forward to use resistance variation in order to measure temperature by using this formula:
Thermistors are of two opposite fundamental types:
With NTC, resistance decreases as temperature rises to protect against inrush overvoltage conditions. Commonly installed parallel in a circuit. As current sink.
With PTC, resistance increases as temperature rises to protect against overcurrent conditions. Commonly installed series in a circuit. As resetteable fuse.
I used a NTC thermistor and connected it to my Fabduino and use the Arduino IDE in order to program it by converting the Resistance values
both to Celsius and Fahrenheit values.