This project describes how to measure temperature with Atmega8 and a thermistor and display it on a Nokia 3310 LCD. A thermistor is a device that changes its resistance with temperature. With a proper resistor divider network, the temperature can be measured by measuring the voltage across the thermistor.
The voltage across the thermistor is measured by the on-chip ADC of Atmega8. The necessary coefficients to convert the resistance to temperature are given in the manufacturer’s datasheet of the thermistor.
Read more: AVR displays body temperature on a Nokia 3310 LCD using Atmega8 microcontroller