Arduino MEGA I2C LCD Tutorial

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In this video, we will learn how to use / connect / interface I2C module with LCD and Arduino Mega. Arduino code for the I2c LCD module is available in the library shown in the video.

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Circuit Diagram:
As shown in the video

I2C-library for LCD on GitHub:

I2C LCD Arduino Code:
Shown in the video.

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You saved me at rotating the potentiometer... Thank you!!

basser
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Thank you so much man. I spent almost 2 hours trying to find out whats wrong, only to find out that I had to turn the petentiometer.

portbasic
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Really good tutorial, but I have a problem: behind the letters, there are rectangles and I can't find a way to remove them. Does anyone know how to do that ?

hasankhaddam
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Mine is showing in the LCD but in the compiler it says that

An error occurred while uploading the sketch
avrdude: verification error, first mismatch at byte 0x046c
0x51 != 0xd1
avrdude: verification error; content mismatch


How can I fix this problem? Thank you

rikdota
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My connection pins is same like you but when when i connect the usb port to my laptop neither the i2c module power light up nor the lcd light. Why??

ashishmunbod
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hi its showing error in lcd.begin(); Error: no such matching function

parth_pov