How to use 16x2 LCD with Arduino || Arduino tutorial

In this video I'm demonstrating how to start using a 16x2 LCD with an Arduino. The first example displays a static text message and number of seconds since Arduino reset. The next one covers modification of my Arduino ohmmeter project to display data on the 16x2 Hitachi HD44780 LCD.
It is a step by step tutorial, which will walk you through wiring the alphanumeric (text) LCD to work with Arduino Uno. You will also learn how to write a sketch (program), which lets you control the liquid-crystal display with the Arduino.

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Video, edit, voice by Chris Lorkowski

[adastra]

Thanks for breaking things down to the bare essentials. You answered questions as I was thinking of them . Subscribed, probably one of the best videos to instill confidence in anyone new to arduinos.

[TheAussiePirate]

<dadvoice>: And where the hell have YOU been young man?</dadvoice>
Good to see you back Chris!!

[HariWiguna]

Welcome back Chris! Great content! Great presentation! Well done!

[RubenLensvelt]

Great video! Videos like this are good starting points for new projects.
Thanks for making this.

[codemasterz]

Hey man, thanks for the video. Would the arduino's 5V not suffice? Don`t have a ps. cheers.

[jabintria]

Hi is this still up? I successfully uploaded the code but there are still no letters or anything on the screen. What do I do? please reply ASAP thanks

[scotthepler]

Is there a way to reverse this? I would like to display on my PC the output of an HD44780 on my PC instead of using the LCD. Can this be done easily?

[vandanatanna]

pls help
dont have any kind of potentiometer but i have a lot kinds of resistors which can i use

[davidprice]

The circuit is wrong the pot connected to the backlight pin 'A" won't do anything.. unless you remove the 150Ω resistor..

[jeevankumarreddyravuru]

Hi i am doing a project on blinking led with delay, the thing is there is some code in the examples for a led blink delay changing using a potentio meter but for me I have 3 LEDs and 3 potentiometers, by using these 3 potentiometers i want to control the delay of 3 LEDs individually i.e led 'A' blinking delay will be controlled by potentiometer ' A' and similarly for LED B and C, i tried many times but result is not as expected, i am new to the programming plz help me

[mateoslab]

My LCD doesn't say which pin is which, I checked the datasheet but that doesn't help :(

[Dvir]

This is a really GREAT video. Thanks!!!
Little help please:
I'm speaking Hebrew, and want to add (or replace) the Hebrew alphabet to the ASCII table of a standard LCD.
Is this possible? How do I do it?

[ammaryassir]

Please help, the background light is working but no text is showing, i used the same schematics as shown both in the video and in the example sketch, any suggestions on why its not printing any text ?

[michaeldecarlo]

The lcd works great but when I add the Ultrasonic Sensor HC-SR04 I get a garbled display, unreadable, all black boxes. Everything is wired and programmed correctly, what causes this? The data in the console is correct from the sensor.

[momomimo]

Do we really need the potentiometer and the resistor to use lcd display? Can I not use it?

[Fidlaa]

And your YouTube video nice work tecnick nice!

[davidprice]

Ah, noticed later in the video the offending resistor was removed, I spoke too soon, good video thanks.

[p_n]

please help me i dont have 150ohm resistor, but i have 100ohm and 200ohm resistor.what shall i do?

[aeshi]

hi my display is working fine at first, my supply is a connected to a resistor to change it to 5V(i have also used 7805 voltage regulator IC and 5V zener diodes), but then when the supply (12V battery) is being charged by a DC generator we noticed that the regulating voltages we use is not working anymore which in turn makes the LCD display random characters. Please help! Thanks