Dislpay: Nokia 5110 LCD
Sensor: DHT11
Arduino model: Uno
Very simple and useful arduino application. It's a basic C code that measures the temperature and humidity in a room / place using DHT11 sensor. You can use different sensor but then you should look for another diagram.
http://www.circuitbasics.com/how-to-set-up-the-dht11-humidity-sensor-on-an-arduino/
http://randomnerdtutorials.com/complete-guide-for-nokia-5110-lcd-with-arduino/