In this tutorial we will see how an LCD screen works and how to use it more easily with the I2C module
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Step 1: What Do We Need:
Step 2: What Is an LCD Screen ?
An LCD (liquid crystal display) is a device that can display characters while consuming a lot of electricity is why it is found in several electronic project
Step 3: What Is I2C Module
The I2C (Inter-Integrated Circuit) is a computer bus Designed by Philips for home automation and home electronics applications, it makes it easy to connect a microprocessor and different circuits by reducing the number of lines required to only two lines, SDA (Serial DAta), and SCL (Serial CLock).
Step 4: How It Works
You have to know that we are going to Display the characters in the LCD as if it were a table each box of the table represents a space to display a character in the screen (See diagram below)
Step 5: The Diagram
For the assembly nothing more simple:
you can solder the I2C module and the LCD screen like this
Step 6: And Now the The I2C-Arduino Link
note that the A5 PIN also represents the SCL pin and the A4 pin represents the SDA pin
Step 7: And Finally the Code