ATtiny2313 Thermometer

The brain of this project is an AT90S2313 that controls the LED Display thus showing the temperature read from a DS182 temperature sensor. The temperature sensor chip, DS1820 is connected to PD1 with a 4.7k pull-up resistor. The circuit presented here uses only one sensor, but you may tie multiple sensors on the same line and modify the program to read it with the help of internal chip ID.

ATtiny2313 Thermometer: [Link]