Source code for simple temperature monitor built with Arduino UNO board, DS18B20 temperature sensor, TM1637 display and signal LED.
1x Arduino UNO Rev3
1x DS18B20 temperature sensor
1x TM1637 display
1x LED
1x 220 ohm resistor
1x 4.7k ohm resistor
1x Breadboard + wires
$ sudo chmod a+rw /dev/ttyACM0