Repeat the same process to include the Wire library. In this case, we select the LiquidCrystal_V1.2.1 zip file first.Īfter clicking Open, the library is now installed. Browse to where you saved the zip files and select one file at a time, then click Open. Open your Arduino IDE and from the menu bar, go to Sketch->Include Library->Add. First, download the LiquidCrystal_V1.2.1 and Wire zip files. Here are the steps to install the libraries. You can download these files at the bottom of this page. After many trials, I was able to make it work using 2 libraries, the LiquidCrystal_V1.2.1 library, and the Wire library. I have tried to include several libraries but I keep receiving errors. The LCD module I’m using is a generic 16x2 LCD with I2C. Libraries are ready-mode codes that you just need to include in your Arduino sketch in order for your LCD to work.
If you use an I2C LCD display, you only need just 4. If you use the regular LCD display, the total number of connections is 12.
These are the connections going to the Arduino board: I2C PINS You will know that your LCD has I2C because you will see pins labeled SDA and SCL. I2C is a serial communication protocol, so data is transferred bit by bit along a single wire (the SDA line). This setup eliminates the need for having to use many digital pins in the Arduino board.
This is usually used to communicate between one master and multiple slaves. I2C (IIC) means inter-integrated communication protocol. The liquid crystals in an LCD produce an image using a backlight. LCD (Liquid Crystal Display) is a type of flat panel display which uses liquid crystals to form characters through a set of instructions or code. It is used in many useful applications such as digital thermometers, cash registers, calculators, and so many more. Many appliances and gadgets are using LCDs to communicate with the end-users. It’s a very handy way to get feedback on what’s happening with your project. Using a Liquid Crystal Display or LCD is a great and cheap way to add monitoring capabilities to your Arduino projects.
0 kommentar(er)
