Introduction to LCD2004 LCD display with I2C module for Arduino

This is introduction to LCD2004 LCD screen with I2C module. You will learn about the hardware, wiring, library, codes and displaying values from sensor or variable mixed with texts.

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[howitworks]

Awesome video, this was the only one I’ve found that was actually helpful for an absolute beginner! I came back to it a few times. Like he said, it’s a brief intro. Now that I’m a bit deeper into it I’ve had to find other videos, but this one 100% gave me my base

[garethdavies]

Very interesting and informative video. I have learnt a lot from this and now I will put it into action . Thanks again

[carrocesta]

very nice job, thanks dude! Greetings from Spain

[radekkierzek]

Yeah! Finally LCD 20x4 over i2c working on my Arduino 1.8.13 half a day for searching and
Robojax save my other half :-)

[Dressa]

54 / 5000
Übersetzungsergebnisse
thanks to the video i understood the first attempts

[putrishamsuddin]

Thank you Robojax for your interesting video. Your explanation had helped me a lot

[gamestv]

This works for me.
Thank you so much.

[informativeworld]

thanks for this tutorial, please tell me how i use this display to show the temperature by using four thermocuples, thanks

[drdbbajpai]

good wxplaination, continue this spirit

[FlightSim]

Wow... RJ that was a lot... awesome !! Thumbs up it is very interesting LCD and big ; dear RJ, are multiply LCDs allowed on one Arduino? or each LCD requires individual Arduinos and Codes on it's own? Probably I need to provide more Arduous and more LCDs, besides I need to learn a lot to make all my little LCDs work each one as an individual gauge for my Cockpit of Flight- Simulator

[jmn]

Here's a tough question for you. I have a pendant that has a 20x4 LCD screen on it. It's hard for others to see what's on the pendant LCD so I would like to mirror the output to either another LCD OR even better to a big computer screen. Is there anything out there to help me piggy back into the LCD to display on a bigger device?

[wiseelu]

I respect your work,  but there are some mistakes you have made, some coding doesn't work and it cost me lots of time to fix it.

[FPVSLO]

I had many problems. It did not work on A4 and A5 for default codes and libraries. I found that when using arduino MEGA - you must use dedicated inputs D20 and D21 at communications pins. It is labeled. It will not work at analog inputs. Used 3 h to figure it out. Bad...

[shehriyarbinak]

Good tutorial try to make it for 12864 lcd with gpio expander

[mahmoudali]

My dear friend, I have an LCD screen that displays the left side only, and it works on an AC charging machine. How do I fix the problem. It's model WH2004L-tmi-et#000. Thanks

[qzorn]

just received this display and will try this arduino uno project for IIOT to display modbus input registers 30001, 30002. thank you.
also, there seems to be problems with the modbusMaster.h rs485 rtu "serial2" working with the ESP32? do you have video and/or working arduino ide example? thank you.

[damirsuljkic]

Hi!
Thank you very much for posting this video.
I keep getting a "avrdude: stk500_recv(): programmer is not responding" error, which makes me unable to upload. The wiring is ok, and the libraries including the code has been downloaded correctly.
Do you have any Idea what it could be?

[skycraft]

i have wired my display as you directed display back light is on but no letters are displayed i tried turning the potentiometer but still no letters not sure what i am missing this is a new purchase so i have not used it before : this is what i purchased --
Blue Serial IIC/I2C/TWI 2004 204 20X4 Character LCD Module Display For Arduino
what am i missing ???
Thank You
Kevin

[FlightSim]

R.J, thanks very much for all inputs, I have general questions abut Arduinos, doesn't Arduinos get full after each time too many different codes uploaded to board? Do we need clear out every other time the uploaded codes? How? because I'm planning to come up with a Code that Arduino be able read UDP receive from my simulator for each gauge, I know by receiving all these data a lots of codes will transfer from Flight Simulator to Arduino. I watched lots of videos abut this Popular "X-Plane 11" ( flight simulator ) but still couldn't find any solution. Regards

[prabhakrishnan]

Can you make the video with this stuff without I2C?