Smraza2004 LCD Display Module (20 Characters x 4 Lines) Compatible with Arduino

This is the second 2004 LCD I've purchased, the first was maybe an 8 / 10, this one is more of a 6 / 10.The LCD functions as expected but the display has a noticeable pink hue on opposite corners.Not sure if it's typical for all these displays but the first display also has a pink hue in the bottom corner but can barely be seen.On the upside, the I2C connection makes it nice to have a few pins left over to connect some sensor to the Arduino and it was nothing more than swapping the connector with my other display to test it, the down side is that's all it took - it uses the same address as the previous display so having two of these connected at the same time is probably going to be an issue (though I have it currently connected with a 1602 and working ok)One other note, like almost everything else in the Arduino arena, there is no documentation provided, just the display in a box. The only 'documentation' is in the specification section above (which is really all that's required). But then again, who wants to run to the internet for every part they purchase?

The Smraza 2004 LCD display is awesome and works perfectly. Addresses may need to be changed and that is common for all of these types of displays. In comparison, the unit is identical and equivalent to other higher priced units. Other sellers, however, and one in particular even had a poor solder job as the serial to digital PCF8574 board was actually soldered on crooked and not evenly attached to the back of the LCD board. I bought all of these (Smraza, sunFounder, SainSmart & HiLetgo's) in order to run tests as I am building some devices and trying to get away from having to use so many wires when programming my boards. I had been using a standard SunFounder LCD 16x2 character display and having to run all of those wires on each project. Now I can connect 4 wires and be done with it!In order to display properly, you need to load the correct library and sketch. Smraza rules here as they provide not only those, but they also give you the data sheets, pdf's, pictures and two library's to work from. You will use the newer library version if you are current on your Arduino ide (I'm running 1.6.7), or you will use library V1 for older Arduino ide versions. And as others have mentioned, they email you prior to receiving the part with a download link to all necessary files! It is also nicely packaged and comes in its own box with bubble wrap.Here is the sketch that I have used to power up all of my LCD's and you may only need to change the address when swapping between LCD boards. Note that this sketch is for my configuration below and if yours does not work then change the address in your sketch and reload your Arduino. I have only used this on a SainSmart Uno and Genuine Nano, but I am certain it will work with all & will report back when I have successfully used on my Mega, and Micro boards. Cheers!//Here I am using the Smraza with a Nano//Compatible with the Arduino IDE 1.6.6-1.6.9//Library version:1.2#include <Wire.h>#include <LiquidCrystal_I2C.h>LiquidCrystal_I2C lcd(0x3F,20,4); // set the LCD address to: (0x3F Smraza) or (0x27 HiLetGo, Sainsmart & Sunfounder) for a 20 chars and 4 line displayvoid setup(){ lcd.init(); // initialize the lcd lcd.backlight(); lcd.setCursor(0,0);// first number is position, second is row lcd.print("Welcome 2 Ur LCD :)"); lcd.setCursor(0,1); lcd.print("Arduino & LCM IIC 2004"); lcd.setCursor(0,2); lcd.print("Testing with Nano"); lcd.setCursor(0,3); lcd.print("123456789ABCDEFGHIJK");}void loop(){}

Works well, once you get the drivers for it, but there is no instructions comes with it as to where to get them, you have to contact the manuifacturer and wait for them to respond before you can get them.

Nice looking and well made. I chose it because the seller includes a link for instructions, libraries and example sketches. This saves a ton of front end time fumbling around trying to get started talking to new modules so you can get going creating things, but... The address given in the support material was wrong for the module shipped and mine works with 0x27 not 0x3F as stated in the support material. Hopes this helps someone else get started.

I'm very impressed with this transaction, not only was the LCD as described, the seller sent an email with a link to the CORRECT library before the LCD even arrived!!! There are a ton of lcd libraries out there and I'm struggling to get this same LCD I bought from Sainsmart to work.The only hic-up in the install was I put the library in the wrong Library folder. It pays to read the entire PDF too. I failed to read through to the end and missed the part about adjusting brightness if it doesn't display. A simple turn of the screwdriver brought the text to a brightness level that I could see. (Note, you can turn the text so low it doesn't display.)Sure you can find them cheaper on other sites but the support from Smraza is more than worth the difference!!!

Not impressed. Doesn't work yet. I keep trying

I am completely satisfied both with the product and customer support. Two days after receipt of the lcd diplay, I received an e-mail from Smraza with all product details, liquidcrystal library and get started guide. After a minor hiccup on determining the i2c address, everything works fine. Smraza rep got back to me very fast when I notified them I was having a difficulty and that is my error as I am not fully knowledgeable of i2c intricacies yet. btw, I really like their library as it appears to be very efficient in that it is not necessary to define all lcd pin #'s when initializing as I have seen in others' libraries...just give the address and display size. I will probably purchase another lcd from Smraza in a couple months.

Do Not buy this Product Smarza Is not a real company no support at all you might get it to work after hours on the internet good luck