Enhancement of the Clock to display temperature
Credits to :-
Date and time functions using a DS1307 RTC connected via I2C and Wire lib
Code based around demo in https://github.com/adafruit/RTClib/archive/master.zip
Pushbutton code from https://arduino-info.wikispaces.com/LCD-Pushbuttons
Modified by Tim Blythman Decmeber 2015
Jaycar link : https://www.jaycar.com.au/diy-arduino-clock-uno
Sensor credit information : http://www.tweaking4all.com/hardware/arduino/arduino-ds18b20-temperature-sensor/
Enhancement to display Temp in oC on bottom line of LCD
Onewire DS18B20 connected to DataPin (documented), with 4.7k Pullup resistor on Signal pin.