This project is perfect for someone who is just starting to play around with the LCD display. This project displays the temperature in Celsius and Fahrenheit and corresponds with the RGB LED depending on what the temperature is.

Supplies

16*2 LCD display (make sure the pins are soldered on)
L3M5 temperature sensor
RGB LED
10 K potentiometer
Jumper Wires
3 220 ohm resistors
1 10K ohm resistor

Step 1: Step 1: Assemble LCD Display

The first step you want to complete before assembling your LCD is connect the breadboard to 5V and GND.

Connect 1st pin to GND
Connect 2nd pin to power
Connect 3rd pin to the middle pin of the potentiometer
Connect 4th pin to pin 2 on the Arduino
Connect 5th pin to GND
Connect 6th pin to A4
Connect 11th pin to A3
Connect 12th pin to A2
Connect 13th pin to A1
Connect 14th pin to A0
Connect 15th pin to a 10 K ohm resistor which connects to power
Connect 16th pin to GND

Step 2: Step 2: Potentiometer

Connect the far right pin to Power
Connect far left pin to GND
Connect middle pin to pin 3 on the LCD

Step 3: Step 3: Temperature Sensor

Place the flat face of the temperature sensor face forward on the breadboard
Connect far right pin to GND
Connect far left pin to Power
Connect middle pin to analog pin A5 on the Arduino

Step 4: Step 4: RGB LED

Depending on which type of RGB LED you have the connections will differ

Connect the GND pin to GND
Connect the 'R' labeled pin to a 220 ohm resistor which connects to PMW pin 9 on the Arduino
Connect the 'G' labeled pin to a 220 ohm resistor which connects to PMW pin 10 on the Arduino
Connect the 'B' labeled pin to a 220 ohm resistor which connects to PMW pin 11 on the Arduino