Arduino Libraries Arduino Displays

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This project we used the Arduino uno and paired it with a LCD display. A LCD (Liquid-Crystal Display) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarisers. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in colour or monochrome.

Display to Arduino

Fist step is connecting the LCD display to the Arduino using wires connected as so…

Gnd   Red Wire 1:     ->    Gnd

Vcc   Black Wire 1:   ->   +5V

SDA  Red Wire 2:     ->    A4

SCL   Black Wire 2:  ->    A5

Connected LCD to Arduino

On top of wiring the backlight of the LCD had to be adjusted in order to make contents on screen visible. this was done by twisting the two pins on the back of the LCD that control the backlight.

Blue = Backlight Pins

Arduino code

Next step is loading the example sketch shared to us onto the Arduino software and then onto the Arduino itself. [Example Sketch]

To make sure the code worked i had to Install the LiquidCrystal_I2C.h library. and add it to in order for the software to recognise some of the lines of code.

Outcome

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