Display temperature, humidity, barometric pressure and altitude on a 16x2 LCD display

The aim I had in this project was to compare weather data from two sensors, namely, the DHT22 and BMP180 (both acquired from adafruit). 


The data gathered from the DHT22 was temperature and humidity while the BMP180 gave the temerature, altitude and barometric pressure.


After initial observations, it appeared that the DHT temperature readings were slightly higher than those from the BMP180, but only by tenths of a degree.