This is a set of one Blue 16x2 Character LCD with backlight, and one I2C Backpack for said display.
The "backpack" allows you to control the display over I2C, which means, you only need 2 wires, plus power and ground to control the LCD.
A character LCD allows you to display 2 lines of 16 characters, usually these are the built in english alpha-numeric characters, but you can also specify up to 7 custom characters.
Driving an LCD like this from your Arduino is super easy, all the hard work has been done for you with this library: LiquidCrystal_I2C_DFR
Simply follow the download and install instructions, open the HelloWorld example, and away you go. A number of other examples are in the library to really help you understand it all.
You will need to solder the backpack onto the display, I've left them separate in case you want to use a socket instead or whatever, pin 1 is marked on the backpack with a square, this goes to pin one the display. Look at the photo on this listing and it should be clear what goes where )
The trim pot is to adjust the contrast, if you see nothing or blocks instead of the letters, adjust the contrast, same for if you see any strangeness, adjust the contrast as first step of trouble shooting.
The I2C address may vary, current batch is address 27. The HelloWorld example in the library will detect and tell you the address.
All of our products are shipped from Christchurch, New Zealand using CourierPost for NZ, and Airmail for international.
