I2C 20 x 4 LCD Display on Arduino

The BEST Arduino tutorial on the internet. Great explanation, Eli.

SOLVED – had the problem fixed – see 5:22 – you have to turn on the serial monitor before running the sketch at 7:32 (link in the description) Hi – everything works and all connections are correct but my display doesn't show any characters. It only shows some like white boxes on the screen. what should I do?

Merci!

I've spent a few hours messing around trying different things that didn't work. I downloaded Eli's code and it worked on the first attempt. I will now go through it line by line and learn how it works and use it in my project. Many Thanks 🙂

Thanks, works perfectly.

Hello, I have bougth an i2c for a 16×2 LCD screen. Does this i2c will work with a 20×4 LCD?

thanks lot of.it works

i have done all the things as you showed. bt my display doesn't show any characters. It only shows some like white boxes on the screen. what should I do?

It's especially helpful while prototyping because you don't have to constantly worry about one of the dozen wires coming loose while messing with it.

hello Eli thanks a lot for the tutorial for the 20×4 lcd !! now my lcd works (it's a 20×4) I didn't understand why it didn't go … I thought it was broken or else and then I came across your video, I put the code and it worked for the first time !! thank you very much again.
A last thing sometimes when I put the code from other websites I get an error: "POSITIVE was not declired for this scope" or something, I don't know how to solve it there are libraries on purpose ?? or is it wrong and change it ?? in any case, thank you very much again; to you I forgot I am Italian so my English is not very good as you have read and I am only sixteen years old so I am still not very good with arduino … you are a myth thanks for really !!

Great set of videos. Very easy to follow. Just getting into Arduino. Mine is blinking, so cool. Have I graduated to tech geek yet? Probably just inventing the wheel at the moment.

Hi. 🙂 big fan of your channel. I got some question buddy . How do i creat money transfer business like Wester Union . Wann a create my own and your advise . Thanks alot in advance buddy

You could make a toddler develop an AI

i prefer smaller bezels and also does it even have a grafix cart this aint no technology

ohh another one

Isn't it "I squared c"

Nice

First