20x4 i2c lcd display arduino code made in china

ERM2004FS-3 is small size 20 characters wide,4 rows character lcd module,SPLC780C controller (Industry-standard HD44780 compatible controller),6800 4/8-bit parallel interface,single led backlight with white color included can be dimmed easily with a resistor or PWM,fstn-lcd positive,black text on the white color,high contrast,wide operating temperature range,wide view angle,rohs compliant,built in character set supports English/Japanese text, see the SPLC780C datasheet for the full character set, It"s optional for pin header connection,5V or 3.3V power supply and I2C adapter board for arduino.

It"s easily controlled by MCU such as 8051,PIC,AVR,ARDUINO,ARM and Raspberry Pi.It can be used in any embedded systems,industrial device,security,medical and hand-held equipment.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and Development Kit at the bottom of this page.

ERM2004FS-2 is 20 characters wide,4 rows character lcd module,SPLC780C controller (Industry-standard HD44780 compatible controller),6800 4/8-bit parallel interface,single led backlight with white color included can be dimmed easily with a resistor or PWM,fstn-lcd positive,black text on the white color,high contrast,wide operating temperature range,wide view angle,rohs compliant,built in character set supports English/Japanese text, see the SPLC780C datasheet for the full character set. It"s optional for pin header connection,5V or 3.3V power supply and I2C adapter board for arduino.

It"s easily controlled by MCU such as 8051,PIC,AVR,ARDUINO,ARM and Raspberry Pi.It can be used in any embedded systems,industrial device,security,medical and hand-held equipment.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and Development Kit at the bottom of this page.

I don"t know where the term "PLJ-6LED 2004A" came from since the first half (PLJ-6LED) seems to refer to a 6-digit, 7-segment display that does not show up on the Sainsmart website. The second half (2004A) comes up often since it refers to the 20x4 display size. It doesn"t much matter which one you are using since they are all more or less the same as long as the row of pins is at the upper left (and not the lower left) corner of the pc board.

I assume you mean the "New Liquidcrystal library" which is a replacement for, not an accessory to, the library that comes with the Arduino IDE. You must follow the installation instructions for this library which you can get here. I believe they also come packaged with the library. Basically you have to remove all traces of any other LiquidCrystal libraries for this one to compile.

I assume that you are referring to this ArduinoInfo page, and to the device he calls "I2C LCD DISPLAY VERSION 1:" That tutorial is actually the one I used when I was tinkering with my adapter which looks like that one and also came on a slow boat from the far east, Banggood in my case.

You also have to deal with the connections between the chip on the IC and the pins that go to the LCD module. These are specific to each pc board and the tutorial gives you the constructor that goes with each of the boards pictured. There is a "guesser" sketch available here if you want to go that route.

With other i2c LCD libraries you must specify the address. Most libraries are also hard coded to work with backpacks that use a specific pin mapping between the PCF8574 chip and the hd44780 LCD display and if your backpack doesn"t use that pin mapping, it won"t work.

That i/o class includes a diagnostic sketch (I2CexpDiag) which will test the i2c signals and internal RAM of the LCD module to verify that the the library is properly communicating with the LCD module.

After running the diagnostic sketch, you can run and look at other sketches for the hd44780_I2Cexp i/o class like the HelloWorld sketch to see what header files need to be included and how to declare the lcd object.

I would recommend first running the diagnostic skech I2CexpDiag to verify that everything is working, then you can run and look at the other examples included in the hd44780_I2Cexp i/o class (like HelloWorld) to see the what header files need to be included and how to declare the lcd object.

I2C_LCD is an easy-to-use display module, It can make display easier. Using it can reduce the difficulty of make, so that makers can focus on the core of the work.

We developed the Arduino library for I2C_LCD, user just need a few lines of the code can achieve complex graphics and text display features. It can replace the serial monitor of Arduino in some place, you can get running informations without a computer.

More than that, we also develop the dedicated picture data convert software (bitmap converter)now is available to support PC platform of windows, Linux, Mac OS. Through the bitmap convert software you can get your favorite picture displayed on I2C_LCD, without the need for complex programming.

Select the board: Click Tools > Board > "Arduino Duemilanove or Diecimila"(Seeeduino V3.0 Or early version), "Arduino Uno"(Seeeduino Lotus or Seeeduino V4.0).

I2C_LCD is an easy-to-use display module, It can make display easier. Using it can reduce the difficulty of make, so that makers can focus on the core of the work.

More than that, we also develop the dedicated picture data convert software (bitmap converter)，now is available to support PC platform of windows, Linux, Mac OS. Through the bitmap convert software you can put your favorite picture displayed on I2C_LCD, without the need for complex programming.

If you want to use I2C_LCD with traditional Arduino boards ( The boards with female connectors, like Arduino Uno and so on ), please refer to another version of I2C_LCD (With 4 pin female jumper to Grove 4 pin conversion cable).

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Connecting an LCD to your Raspberry Pi will spice up almost any project, but what if your pins are tied up with connections to other modules? No problem, just connect your LCD with I2C, it only uses two pins (well, four if you count the ground and power).

In this tutorial, I’ll show you everything you need to set up an LCD using I2C, but if you want to learn more about I2C and the details of how it works, check out our article Basics of the I2C Communication Protocol.

BONUS: I made a quick start guide for this tutorial that you can download and go back to later if you can’t set this up right now. It covers all of the steps, diagrams, and code you need to get started.

There are a couple ways to use I2C to connect an LCD to the Raspberry Pi. The simplest is to get an LCD with an I2C backpack. But the hardcore DIY way is to use a standard HD44780 LCD and connect it to the Pi via a chip called the PCF8574.

The PCF8574 converts the I2C signal sent from the Pi into a parallel signal that can be used by the LCD. Most I2C LCDs use the PCF8574 anyway. I’ll explain how to connect it both ways in a minute.

I’ll also show you how to program the LCD using Python, and provide examples for how to print and position the text, clear the screen, scroll text, print data from a sensor, print the date and time, and print the IP address of your Pi.

I2C (inter-integrated circuit) is also known as the two-wire interface since it only uses two wires to send and receive data. Actually it takes four if you count the Vcc and ground wires, but the power could always come from another source.

Connecting an LCD with an I2C backpack is pretty self-explanatory. Connect the SDA pin on the Pi to the SDA pin on the LCD, and the SCL pin on the Pi to the SCL pin on the LCD. The ground and Vcc pins will also need to be connected. Most LCDs can operate with 3.3V, but they’re meant to be run on 5V, so connect it to the 5V pin of the Pi if possible.

If you have an LCD without I2C and have a PCF8574 chip lying around, you can use it to connect your LCD with a little extra wiring. The PCF8574 is an 8 bit I/O expander which converts a parallel signal into I2C and vice-versa. The Raspberry Pi sends data to the PCF8574 via I2C. The PCF8574 then converts the I2C signal into a 4 bit parallel signal, which is relayed to the LCD.

Before we get into the programming, we need to make sure the I2C module is enabled on the Pi and install a couple tools that will make it easier to use I2C.

Now we need to install a program called I2C-tools, which will tell us the I2C address of the LCD when it’s connected to the Pi. So at the command prompt, enter sudo apt-get install i2c-tools.

Next we need to install SMBUS, which gives the Python library we’re going to use access to the I2C bus on the Pi. At the command prompt, enter sudo apt-get install python-smbus.

Now reboot the Pi and log in again. With your LCD connected, enter i2cdetect -y 1 at the command prompt. This will show you a table of addresses for each I2C device connected to your Pi:

We’ll be using Python to program the LCD, so if this is your first time writing/running a Python program, you may want to check out How to Write and Run a Python Program on the Raspberry Pi before proceeding.

I found a Python I2C library that has a good set of functions and works pretty well. This library was originally posted here, then expanded and improved by GitHub user DenisFromHR.

There are a couple things you may need to change in the code above, depending on your set up. On line 19 there is a function that defines the port for the I2C bus (I2CBUS = 0). Older Raspberry Pi’s used port 0, but newer models use port 1. So depending on which RPi model you have, you might need to change this from 0 to 1.

The function mylcd.lcd_display_string() prints text to the screen and also lets you chose where to position it. The function is used as mylcd.lcd_display_string("TEXT TO PRINT", ROW, COLUMN). For example, the following code prints “Hello World!” to row 2, column 3:

On a 16×2 LCD, the rows are numbered 1 – 2, while the columns are numbered 0 – 15. So to print “Hello World!” at the first column of the top row, you would use mylcd.lcd_display_string("Hello World!", 1, 0).

You can create any pattern you want and print it to the display as a custom character. Each character is an array of 5 x 8 pixels. Up to 8 custom characters can be defined and stored in the LCD’s memory. This custom character generator will help you create the bit array needed to define the characters in the LCD memory.

The code below will display data from a DHT11 temperature and humidity sensor. Follow this tutorial for instructions on how to set up the DHT11 on the Raspberry Pi. The DHT11 signal pin is connected to BCM pin 4 (physical pin 7 of the RPi).

By inserting the variable from your sensor into the mylcd.lcd_display_string() function (line 22 in the code above) you can print the sensor data just like any other text string.

These programs are just basic examples of ways you can control text on your LCD. Try changing things around and combining the code to get some interesting effects. For example, you can make some fun animations by scrolling with custom characters. Don’t have enough screen space to output all of your sensor data? Just print and clear each reading for a couple seconds in a loop.

Simple project that houses and encloses a normal-sized 20x4 I2C LCD. Included are 3 files; 1.) The entire design. 2.) Just the cover. 3.) Just the base shape. The entire thing can be printed at once or one part at a time. Exposes 4 pins and backlight...

2004 LCD box with i2c module assembled with M3 screws and nuts. As a protective glass, you can use plexiglass or acrylic with a thickness of 1mm. ...At the back there is a hole for adjusting the brightness and a place for an XH-4P connector for...

... are not normally uploads in Fusion 360... Fails,fails, yes...kill me :) ___Simple model of 2004 lcd module with I2c adapter.___Model of I2C adapter i took from the library of Grabcad. ...If you will find mistakes of this, it is not my problem ;)

#Purpose Is an enclosure for working with a 20x4 char lcd display. Should prevent damage through static electricity ##Problems The dimensions are very close to the PCB of the 20x4 LCD. You should print with a 1% oversize. Alternativ you can hone down...

i buyed mine from china for 8€ i buyed exaktly this one from him: 20x4 I2C LCD http://www.ebay.de/itm/Neu-Arduino-Blau-Display-Bildschirm-IIC-I2C-Serie-2004-20x4-Character-LCD-Modul-/370953200452?pt=Bauteile&hash=item565e88a344 7,68 euro...

A case for Arduino projects using 20x4 lcd display. There are two versions: without and with three holes for 5mm led. In the latter case, you can also use led covers that produce a kind of super led. The box can be rested in two different ways,...

... the LCD display. A fewdabs of glue are required to mount the back cover onto the project box.This object main web page is:http://www.ctheroux.com/editing-extra-large-20x4-lcd-project-box/.You can request the source files on the page listed above.

... display. A few dabs of glue are required to mount the back cover onto the project box. This object main web page is: http://www.ctheroux.com/editing-extra-large-20x4-lcd-project-box/. ...

ERM2004FS-2 is white 20x4 lcd display character,hd44780 or equivalent controller,3.3V/5V power,white backlight,wide view angle,optional I2C board for arduino.Souce from EastRising/buydisplay.com

I had an old Sparkfun 20x4 serial enabled LCD lying around and I decided to make it work for my Printrbot Simple. My version was older and has the serial backpack soldered to it. If you get a new one from Sparkfun, you don"t need the box sticking out...

I made a simple design to practice with an Arduino UNO and LCD (20x4). Using M3 screws to hold the UNO board and the LCD on the stand. ...The design has enough height to be able to use Screw Shields and lateral openings for wires.

20x4 LCD housing Use M2.5 bolts to screw it in, can drill out for larger M3 if required as bosses are large enough to take it. Designed to hang on the top of an 18mm MDF edge and for the cabling to be taken through the MDF at the rear.

An external box with stand for an HD44780 based 20 x 4 LCD display I have hooked to Arduino"s and Rasperry Pi"s. I used a Sparkfun Serial Enabled LCD Backpack Adapter and made a cable entrance hole along with access to the screw connections and...

20x4 LCD housing Use M2.5 bolts to screw it in, can drill out for larger M3 if required as bosses are large enough to take it. Designed to hang on the top of an 18mm MDF edge and for the cabling to be taken through the MDF at the rear. Use small wood...