dfrobot i2c lcd module arduino price

When writing the code, the buttons have an assigned pin out. Then each pin out has an internal resistor that is a specific value. So when entering values to assign the buttons you have to just use trial and error to determine the values of each button. Otherwise when you push the button labeled left, up is displayed on the LCD and when you push button labeled up, right is displayed on the LCD. And so on. Also button labeled select showed displayed nothing. only 1 button was correct so that was my starting point. So you just need to troubleshoot one button at a time to have the buttons properly addressed. In the end it did work. Up, down, left, right and select all show correctly on the LCD display when pressed. Once that was resolved assignments of any button to then perform a task, for example “press up to command on relay 1 which turns on fan” is now possible and can also be programmed show that fan on is successful”. Cool gadget.

16x2 LCD display screen with I2C interface is able to display 16x2 characters on 2 lines, white characters on blue background. With limited pin resources, your project will quickly run out of resources using normal LCDs. With this I2C interface LCD module, you only need 2 lines (I2C)to display the information. If you already have I2C devices in your project, this LCD module actually cost no more resources at all. The address can be set from 0x20-0x27. Fantastic for Arduino or gadgeteer based projects. Compatible with Arduino/Genuino UNO, Leonardo, Mega, 101 (Intel Curie), Micro, Nano, Mini

Have you been fed up with Black/White LCD screen? Do you want to try a colorful one? DFRobot I2C 16x2 Arduino LCD with RGB Backlight Display module will bring you a new experience about screen. It comes with RGB full color backlight, which has 16 million kinds of color. This I2C 16x2 LCD Screen is using an Gravity I2C communication interface. It means it only needs 2 communication lines for the communication and backlight control. The LCD can display 2x16 characters and support scrolling-displaying and cursor movement. Without tedious wiring and complicated codes, you can just utilize the specific Arduino library to accomplish all the design.

DFRobot Gravity I2C LCD1602 with RGB Backlight Display can display 2x16 characters and support functions like scrolling-displaying, cursor movement and backlight color adjustment