16×2 LCD is a common display that has been available for a long time from different companies and comes in slight variations in display appearance, interface pinout, backlight etc.
Fritzing Diagram
Fritzing is a software which is easier to use than professional electronics design software. It produces diagrams that use graphic representations of the electronic components rather than their symbols, which makes it a lot easier for hobbyists to understand the circuits with ease. You can download a copy for about $10 from https://fritzing.org/download/
I have used two pots (potentiometers), one to control the contrast of the LCD charactesr, and other to control the intensity of the backlight. Make sure for the LCD that pin 1 is on the left when it’s placed in the same orientation as shown in the diagram below. If the pins are in any other configuration, you’ll have to modify the wiring diagram.
![](https://haibat.com/wp-content/uploads/2022/03/162LCD_bb-1024x499.png)
Breadboard Wiring
Once you are happy with the design, you can wire it up on a breadboard as below:
![](https://haibat.com/wp-content/uploads/2022/03/breadboard-1024x768.jpeg)
Note that the LCD pin 1 is on the left and pin 16 is on the right. The above wiring will only work for this type of LCD.
To be continued …
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