Serial 16x2 lcd arduino

And print it to the display. I use the function "analogRead " function to read the analog value and use the "lcd. And there is no need of double qunotes. Next I add some delay. Otherwise the text will blinks continusoly. That because of the first instruction "lcd. Every time when see this command the Arduino will clear the display, This results the blinking of display. But use of delay will decrease this blinking.

The programming part is completed. The complete program is given in the code section of this article. You can use a breadboard or just use the jumber wires. The connection diagram is given in the Schematics part. Please careful about the backlight LED connection.

Over voltage will kill that LED. You can see the tinkercad simulation here. Contact : akshayjoseph gmail. Please log in or sign up to comment. Here we just use 4 wires. Add an LCD to your projects to display data acquired from sensors, display your own custom characters, or use it as a debugging tool. In this tutorial, you will learn how to use and set up 2. Basic setup to a paint app!

Sign In. My dashboard Add project. Arduino IDE. This article help you to interface LCD with Arduino and make your project to fight against Covid This article is mainly for beginners. The code explained line by line. Key points. Setcursor , lcd. Author Akshay Joseph 17 projects followers Follow. Respect project.

Similar projects you might like. Arduino 2. Powered by. Keep me signed in on this device. Or connect with your social account: Login with Arduino. There we need more than 12 wires. But here only use just 4 wires. But now I am using I2C Communication. I2C is short for Inter-IC. And it is a type of BUS. This is designed by Philips semiconductors. I2C is a synchronous, multi slave, multi master packet switched, single-ended serial bus.

For more about I2C protocol click here. It is also known as I2C Module. It has total of 20 male pins. The rest 2 pins for power supply Vcc and ground. And there is a jumber fixed on the module. Before starting we need to know about addressing of I2C devices. Every device which can attached to MCU have an address. We need to know this address for communicate with that particular device.

You can see three solder pads on the I2C module. This is Address selectors. In default the A0, A1, A2 are in "Not connected" condition. And some time default address is 0x3F. But when we use more than one LCD, need to change the address. Because two or more different device can't communicate with the same address.

For more address see the table given below. In some cases A0, A1, A2 are "Not connected" state, but the address is not 0x We can't communicate with this address. So we need to find the original address of that device. For that we need to run the Arduino with "I2C Scanner" code.

First add the header file for include "Wire. Then in setup part, begin the "Wire" library by "Wire. Then begin the serial monitor as the baud rate of by "Serial. Next in loop part, define two variables with the datatype "byte" named "error" and "address". To get the result, please download the sample source code which is attached below and upload it into your Arduino. In this tutorial, the Arduino UNO is being used.

Thanks for the tutorial. Reply 2 years ago. Question 3 years ago. By mybotic Mybotic Follow. More by the author:. Description Now, with only 3 pins from microcontroller, you can display message on this LCD. Feature: 1.