Arduino LCD I2C tutorial | how to program LCD

[@boasdelely1550]

If it don't work: try to change the code: in stead of lcd.init type lcd.begin, for me this worked.

[@mission_critical]

Thank you ! I will pin your comment so that everyone can learn from this fix! Thank you for subscribing to Mission Critical

[@barryluft4451]

Thanks, I had sort of begun to figure that out and your comment batted me home

[@boasdelely1550]

@@barryluft4451 good to Hear! Good luck with your project!

[@leofranssen]

Thanks a thousand times. You are the first one giving me software without falts. Thanks for that. Best regards, Leo, The Netherlands.

[@mission_critical]

Most welcome brother ❤️

[@thomasstokes5799]

Thank you so much! I was having problems with my LCD, but your video showed I needed the I2C scanner to get the hexadecimal code. Thanks

[@mission_critical]

Glad I would help, Thank you for subscribing to Mission Critical

[@salahsoufi8603]

Thanks alot I saw a lot of Videos, u explained it really fantastic.

[@mdheere540]

Hallo world. I was straggling for a long time with this and you made it so easy. thank you

[@mission_critical]

Glad I could help! thank you for subscribing to Mission Critical

[@Headmastar]

thanks for printing.

[@milespeterson5049]

I have a problem and you BETTER respond. I wrote the code exactly how the video said to do it and it gives me an error. "class LiquidCrystal_I2C" has no member named 'init' how to fix it? please let me know.

[@davida.mendez2353]

Tenga su like buen hombre!! . . Funciona perfectamente con un display de 20 x 4 Saludos

[@francescostrano8314]

ciao. non so potresti aiutarmi, mi hanno regalato una board simile arduino ma a bordo un atmega 64 ho visto il tool di arduino uno mega ecc.. non e' supportato, comunque mi sono messo alla ricerca e finalmente con una interfaccia isp di pochi euro riesco a programmarlo. il problema e che in rete non trono nulla riguardo utilizzo porte analogiche e protocolli i2c per dispay e lcd , mi potresti aiutare tu con qualche esempio sempre se puoi ..grazie Francesco

[@theboys4822]

hello I have a question if we want to make a alert code like for alcohol detector it will print the BAC , if it is increasing or decreasing ?

[@mission_critical]

It will print as you code it to print, I don't understand why it will go ascending or descending

[@ninobrouwers1818]

For people who get strange characters while trying to get the address. Changing the number in serial.begin() to 9600 did the trick for me

[@barryluft4451]

Thank you for a very helpful video

[@mission_critical]

Glad I would help! Thank you for subscribing to Mission Critical!

[@Circuitsplanet]

WHY IT GIVES ME THIS ERROR no matching function to call for LiquidCrystal_I2C::begin() code #include #include LiquidCrystal_I2C lcd(0x27, 16, 2); void setup() { lcd.begin(); lcd.backlight(); lcd.clear(); lcd.setCursor(4,0); lcd.print("Hackster"); } void loop() { }

[@mission_critical]

Most likely unmatched Library, try changing the libraries

[@Circuitsplanet]

Thanks it worked ❤️

[@unitedrobotics7377]

Awesome job bro!!

[@mission_critical]

glad i could Help, Thank you for Subscribing to Mission Critical

[@karamveersingh6955]

Need help on i2c scanner. Cannot find the i2c lcd address. Always show found 0 devices. Using arduino nano Sda on a4 Scl on a5

[@greglester5164]

What cable do we for power and to connect to computer

[@Mhd572]

Good day sir, thank you for making this helpful video, but I've made all the required steps and still the LCD doesn't work, all the connections are fixed and the libraries are included, the LCD is on but no characters at all!! What's seems to be the issue here?!

[@mission_critical]

Hey there, thank you for showing support towards mission critical! For support and help, kindly drop message on Instagram, thank you 😀

[@aramisc1882]

I haven’t being able to use my LCD because mine only has three cables instead of four and I don’t have the code and or the picture on how to install it. Can you help please?

[@lindamy8571]

I've adjust the contrast but there was nothing sentences show in lcd. Can you help me :( ?

[@qubitevo]

My LCD I2C scanner is showing 0x3F, what will I do now ?

[@rohitsingh-xk8cr]

is there any changes in the code for arduino nano?? please reply...

[@TheFreshHotDog]

I get a error message saying 'lcd' was not declared in this scope. How do i fix this

[@atomalpha9553]

please what to do with this error: Arduino: 1.8.12 (Windows 10), Board: "Arduino Uno" ^ In file included from C:\Users\HP\Downloads\Hello_Freinds\Hello_Freinds.ino:4:0: Hello_Freinds:10:12: error: 'int LiquidCrystal_I2C::init()' is private within this context lcd.init();

[@mission_critical]

please try the exact same code from my blog, and try checking if u have duplicate library, if yes, rename the duplicate file

[@kandy5129]

is there a way to make the text start on the left side without using space

[@mission_critical]

i guess give blank spaces, not sure if it will work exactly, give it a try Glad I could help! thank you for subscribing to Mission Critical

[@symountamed7607]

If u here in 2022 and u have a problem with init.... Replace init with begin.

[@CircuitCreator]

PIN 1 》GROUND PIN 2 》POSITIVE PIN 3 》10K POT PIN 4 》A12 PIN 5 》GROUND PIN 6 》A11 PIN 11 》A5 PIN 12 》A4 PIN 13 》A3 PIN 14 》A2 PIN 15 》220Ω PIN 16 》GROUND

[@djamaatul]

what name or how working effect clock update in this video ?

[@boasdelely1550]

hey bro, when i try tu upload the code is says Within this context, i used the libary you gave in the description.

[@mission_critical]

I think there might be collusion in libraries, go to your library folder of Arduino and delete your LCD library, reinstall this one and try uploading again! Hopefully this helps you! Thank you for subscribing to Mission Critical

[@samoethongneochainam5771]

When I tried with the example i2c it's okay, but I edited or modified it compiled error. What's happened

[@ricksanchez-dr1nq]

Hello sir my lcd prints only first char of the word can you help me

[@mission_critical]

i guess your LCD is different or may be some code issue, use the proper Library

[@neelimasoni5922]

Sir, is it necessary to know the address of 12c module in case we r just using only one 12c module in our system

[@mission_critical]

Yes, even if you are using 1 i2c device, address can vary, as sometimes devices have different addresses, so it's would be suggested to know the i2c address before hand! Thank you for subscribing, Tech team Mission Critical

[@neelimasoni5922]

Thankyou Sir

[@simonboy961]

Hi , i have done uploading the code. Only the letter "h" is appearing on my lcd panel , can i have some assistance in this ? thank you.

[@mission_critical]

please go to my instructables link, find the code and use that exact code, hopefully it will work! thank you for subscribing to Mission Critical

[@deepakbains6755]

Hi brother I like you videos .plz help regarding lcd i2c display as no text visible on my LCD screen on yellow light.. connections done properly..but no results

[@mission_critical]

What about the Contrast ? Try adjusting Contrast on the back of LCD

[@bytesizenetworking4788]

@@mission_critical HAHAHAHAHA thanks for this - i am such an idiot!!!

[@ms13leon]

hi i want to display some data on my 4*16 lcd using arduino mega but i programed it using matlab simulation can you help me ?

[@mission_critical]

so you want to program a LCD using Arduino? Or Matlab? Or do you want to use Arduino for Sensors ? Or do you want to display the processed data from MATLAB to your LCD via Arduino? It would be helpful if you make a little clear description, thank you

[@ms13leon]

first thank you for replying ...... i made my program using arduino matlab simulation package and built it to mega ... there is another package for lcd but it didn't work so i tried to transfer data from mega to uno using serial communication and print it on lcd but also it didn't work as i wanted ... i want any way to display the data from mega on lcd

[@mission_critical]

Why don't you try to understand the library commands from MATLAB library and then make changes in final code accordingly, else just write the entire code on Arduino IDE

[@fsociety2011]

sir, my LCD won't display any characters. They just show black bars. I connected A4 SDA and A5 SCL

[@mission_critical]

Did you try adjusting the contrast? Because that's what I can see is wrong in most of the cases, even happens to me sometimes, well, if not, let me know! Thank you for Subsrcibing to mission critical! ~Your Friendly Tech Team from Mission Critical Channel!

[@fsociety2011]

i did but it still doesnt show any characters

[@mission_critical]

Was the upload successful? Try the exact code I have in my instructables post, and make sure upload is successful, let me know when you can't get output at the step too! Thank you for Subsrcibing to Mission Critical, ~ Your Friendly Tech team from Mission Critical

[@fsociety2011]

when i try o copy your code, there seems to be an error in the lcd.init (); line saying "invalid conversion from int to t_backlightPol

[@fsociety2011]

@@mission_critical now it says 'class LiquidCrystal_I2C' has no member named 'init'

[@nganyong9904]

hi. what adruino simulator did u use sir?

[@mission_critical]

i didn't use any simulator, well all the resources needed are linked in description Glad I could help! thank you for subscribing to Mission Critical

[@justme-n-gracie]

what happened to part 2?

[@mission_critical]

Hello there! How to create custom characters on LCD is the part 2 of this video do check it out and if you need another part ( part 3 ) of this video, let me know 😀 . Thank you for Subsrcibing to Mission Critical!

[@genokapanadze4564]

serial monitor prints "Found 0 device(s). ". can anyone help me? what can i do?

[@mission_critical]

Check connections / replace the wire, sometimes it happens it happens due to loose connection, sometimes due to faulty device, just get it checked once

[@genokapanadze4564]

@@mission_critical oh really. why is pinMode 13 necessary? what does it do?

[@mission_critical]

I used pin13 as virtual power pin, I used the digitalWrite(13,HIGH) to turn that pin as +5V

[@genokapanadze4564]

@@mission_critical ok. my ldc is broken.

[@mission_critical]

Okay, get a new one and try once again!

[@manjujain5991]

On my LCD display only light is coming there are no characters coming... plz help

[@mission_critical]

Um, I think you missed the " adjusting contrast " step ~ Tech Team from Mission Critical Thank you for subscribing to mission critical

[@manjujain5991]

@@mission_critical not happening tried it

[@mission_critical]

Now, check if the wires are working, sometimes wires are broken

[@mission_critical]

Also, please upload the exact same code from my instructables

[@manjujain5991]

Light is coming but there is no text displaying

[@remyasoman3750]

Sir, what about the program for a paper counter?!

[@mission_critical]

Hello there, I am sorry for the delay presently, I am on a vacation, after I return I will resume with Electronics basics after which this paper counter machine will be a part of project / concept thank you for your patience and support ~ Akshay Momaya ( Mission Critical)

[@remyasoman3750]

Mission Critical Thank you Sir!

[@advayagashe7466]

it shows a error that "'lcd' does not name a type"

[@mission_critical]

Never heard or came across such error till date, let me check if I can find any solution

[@drvarshaudhodasani1691]

@@mission_critical Same Problem n error

[@mission_critical]

There is a solution to it, check in comments, I have pinned the person who found the solution to this problem, Thank you 😊 Still, if you facing more problems, DM to Instagram Handle of "officialmissioncritical" And thank you for subscribing to Mission Critical

[@ubtech2938]

thx man

[@SHAWNSJ2005]

Sir!! ISRO IS LOOKING FOR YOU

[@mission_critical]

haha, actually i visited them on 9th jan 2020, thank you for subscribing to Mission Critical

[@SHAWNSJ2005]

@@mission_critical how????

[@mission_critical]

@@SHAWNSJ2005 it was an Industry visit, the work ISRO is doing is way too inspiring for our Community!

[@maryroseapoya1735]

thanks this is lit

[@mission_critical]

welcome :) & thank you for subscribing to our Channel!

[@romelelectronics]

amazingggggggggggggggggggggggggggggg

[@ultraninja2006]

how can I solve this : liquidcrystal_i2c.h no such file or directory

[@mission_critical]

Look at the comments, one of my subscribers has found solution to this one

[@ultraninja2006]

@@mission_critical I dont see anyone asking this question :(

[@mission_critical]

I think it's on my other pages, do one thing, go to my Instructables link, download the i2c library attached in that page, download the example code that's attached in that post, let me know what happens next

[@ultraninja2006]

@@mission_critical I did it, now it recognizes the library but not text is shown, just the lcd is on but with no text :( thanks for your time to answer my questions!

[@ultraninja2006]

@@mission_critical I did it but I can only see black boxes even adjusting the knob :(

[@yeshacroe9354]

I got stressed with this part and kinda wanna give up this part. Lord.

[@muhdhamizan6481]

ITS WORKK

[@andrejdoblehar9916]

Nice ;)

[@mission_critical]

Thank you ☺️

[@codingvio7383]

0:00 At least if you ain't sure on how to spell enthusiasts go to a dictionary or just research it or let autocorrect deal with it. But that is just embarrassing

[@bytesizenetworking4788]

Thank Goodness this is not a spelling Channel, and hey - Bang on the money with the Wiring and Coding in this Video - Nice Tutorial, thanks bro

[@sidharthanjayavelu6175]

"daata"

[@mission_critical]

Glad I could help! thank you for subscribing to Mission Critical

[@bhavyaharia4712]

Hello Friends Chai pee lo

[@mission_critical]

😂😂😂 that thing is trending so why not 😂