Abstract:
"DIGITAL THERMOMETER" is a simple 0-150°C thermometer with 1°C resolution using ATmega328. It consists of two sections. One is a temperature sensor LM 35. LM35 is an analog temperature sensor IC which can measure a temperature range of -55 to 150°C. The other section converts the temperature value into a suitable number in Celsius scale which is done by the ATmega328 microcontroller The LM 35 IC generates a 10mV variation to its output voltage for every degree Celsius change in temperature. Temperature in degree Celsius is displayed using a 16x2 LCD display.