Published January 17, 2026 © GPL3+

i2C Converter 8x2 LCD

A custom i2C board for 8x2 LCD

IntermediateShowcase (no instructions)3 hours164

Things used in this project

Hardware components

lcd 8x2

Cytron Technologies maker feather aiot s3

Software apps and online services

JLCPCB EasyEDA

Story

Introduction

The purpose of this project is to build a custom interface board to interface the lcd 8x2 with Maker Feather AIOT.

Schematic Design

For designing the schematic and the PCB board I have used EasyEDA. Below is the schematic files for this project.

PCB Design

The PCB output of this design as shown in figure below

Hardware

Below is the image of the completed PCB

Top View

Bottom View

Below is the image of the board which has been soldered with the components

The Output

The above image is the output from the LCD. Since the breakout board is using the Maker Port/Qwiic/ Stemma Qt, I have used the Maker Feather AIOT S3 as the controller as the interfaces were made easy.

Code

LCD Test

//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,8,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display

void setup()
{
  lcd.init();                      // initialize the lcd 
  lcd.init();
  lcd.noBacklight();
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Hello");
  lcd.setCursor(0,1);
  lcd.print("World");
}


void loop()
{
}

Credits

Mohamed Meera Hussien Jawhar Sathik

3 projects • 5 followers

I am curious about the world microcontroller. Initially i start up with PIC then work on Arduino and then to Raspberry Pi.

i2C Converter 8x2 LCD

Things used in this project

Hardware components

Software apps and online services

Story

Introduction

Schematic Design

PCB Design

Hardware

The Output

Schematics

The Breakout Board Schematic

Code

LCD Test

Credits

Mohamed Meera Hussien Jawhar Sathik

Comments

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i2C Converter 8x2 LCD

i2C Converter 8x2 LCD

Things used in this project

Hardware components

Software apps and online services

Story

Introduction

Schematic Design

PCB Design

Hardware

The Output

Schematics

The Breakout Board Schematic

Code

LCD Test

Credits

Mohamed Meera Hussien Jawhar Sathik

Comments

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