lcd screen installation free sample
With all the advantages and disadvantages, lcdds are essentially a good choice for those who see the TV starting from 4k smartphone. Nowadays, in addition to the wholesale models, lcdds are essentially a good option for those that don ’ t have the capacity of a device.
In this tutorial, I’ll explain how to set up an LCD on an Arduino and show you all the different ways you can program it. I’ll show you how to print text, scroll text, make custom characters, blink text, and position text. They’re great for any project that outputs data, and they can make your project a lot more interesting and interactive.
The display I’m using is a 16×2 LCD display that I bought for about $5. You may be wondering why it’s called a 16×2 LCD. The part 16×2 means that the LCD has 2 lines, and can display 16 characters per line. Therefore, a 16×2 LCD screen can display up to 32 characters at once. It is possible to display more than 32 characters with scrolling though.
The code in this article is written for LCD’s that use the standard Hitachi HD44780 driver. If your LCD has 16 pins, then it probably has the Hitachi HD44780 driver. These displays can be wired in either 4 bit mode or 8 bit mode. Wiring the LCD in 4 bit mode is usually preferred since it uses four less wires than 8 bit mode. In practice, there isn’t a noticeable difference in performance between the two modes. In this tutorial, I’ll connect the LCD in 4 bit mode.
Here’s a diagram of the pins on the LCD I’m using. The connections from each pin to the Arduino will be the same, but your pins might be arranged differently on the LCD. Be sure to check the datasheet or look for labels on your particular LCD:
Also, you might need to solder a 16 pin header to your LCD before connecting it to a breadboard. Follow the diagram below to wire the LCD to your Arduino:
Now we’re ready to get into the programming! I’ll go over more interesting things you can do in a moment, but for now lets just run a simple test program. This program will print “hello, world!” to the screen. Enter this code into the Arduino IDE and upload it to the board:
There are 19 different functions in the LiquidCrystal library available for us to use. These functions do things like change the position of the text, move text across the screen, or make the display turn on or off. What follows is a short description of each function, and how to use it in a program.
TheLiquidCrystal() function sets the pins the Arduino uses to connect to the LCD. You can use any of the Arduino’s digital pins to control the LCD. Just put the Arduino pin numbers inside the parentheses in this order:
This function sets the dimensions of the LCD. It needs to be placed before any other LiquidCrystal function in the void setup() section of the program. The number of rows and columns are specified as lcd.begin(columns, rows). For a 16×2 LCD, you would use lcd.begin(16, 2), and for a 20×4 LCD you would use lcd.begin(20, 4).
This function clears any text or data already displayed on the LCD. If you use lcd.clear() with lcd.print() and the delay() function in the void loop() section, you can make a simple blinking text program:
This function places the cursor in the upper left hand corner of the screen, and prints any subsequent text from that position. For example, this code replaces the first three letters of “hello world!” with X’s:
Similar, but more useful than lcd.home() is lcd.setCursor(). This function places the cursor (and any printed text) at any position on the screen. It can be used in the void setup() or void loop() section of your program.
The cursor position is defined with lcd.setCursor(column, row). The column and row coordinates start from zero (0-15 and 0-1 respectively). For example, using lcd.setCursor(2, 1) in the void setup() section of the “hello, world!” program above prints “hello, world!” to the lower line and shifts it to the right two spaces:
You can use this function to write different types of data to the LCD, for example the reading from a temperature sensor, or the coordinates from a GPS module. You can also use it to print custom characters that you create yourself (more on this below). Use lcd.write() in the void setup() or void loop() section of your program.
The function lcd.noCursor() turns the cursor off. lcd.cursor() and lcd.noCursor() can be used together in the void loop() section to make a blinking cursor similar to what you see in many text input fields:
Cursors can be placed anywhere on the screen with the lcd.setCursor() function. This code places a blinking cursor directly below the exclamation point in “hello, world!”:
This function creates a block style cursor that blinks on and off at approximately 500 milliseconds per cycle. Use it in the void loop() section. The function lcd.noBlink() disables the blinking block cursor.
This function turns on any text or cursors that have been printed to the LCD screen. The function lcd.noDisplay() turns off any text or cursors printed to the LCD, without clearing it from the LCD’s memory.
This function takes anything printed to the LCD and moves it to the left. It should be used in the void loop() section with a delay command following it. The function will move the text 40 spaces to the left before it loops back to the first character. This code moves the “hello, world!” text to the left, at a rate of one second per character:
Like the lcd.scrollDisplay() functions, the text can be up to 40 characters in length before repeating. At first glance, this function seems less useful than the lcd.scrollDisplay() functions, but it can be very useful for creating animations with custom characters.
lcd.noAutoscroll() turns the lcd.autoscroll() function off. Use this function before or after lcd.autoscroll() in the void loop() section to create sequences of scrolling text or animations.
This function sets the direction that text is printed to the screen. The default mode is from left to right using the command lcd.leftToRight(), but you may find some cases where it’s useful to output text in the reverse direction:
This code prints the “hello, world!” text as “!dlrow ,olleh”. Unless you specify the placement of the cursor with lcd.setCursor(), the text will print from the (0, 1) position and only the first character of the string will be visible.
This command allows you to create your own custom characters. Each character of a 16×2 LCD has a 5 pixel width and an 8 pixel height. Up to 8 different custom characters can be defined in a single program. To design your own characters, you’ll need to make a binary matrix of your custom character from an LCD character generator or map it yourself. This code creates a degree symbol (°):
The MPC2500XLCD Large ( 240 x 128 ) LCD screen doubles the screen size of the MPC2500. The XLCD screen utilizes the mounting points of the original factory LCD. This new LCD screen comes mounted in the plastic holder surround and easily drops in the place of the old one. With a simple install of the included operating system update, you upgrade to a much larger LCD screen. The LCD screen is available in two colors (White and Blue), which can also be inverted (see pictures) using a function in the JJ OS128 operating system included for free. The operating system allows this larger LCD screen to utilize the full capabilities of the MPC2500 with a larger overall LCD screen footprint.
LCD Screen with complete tilt housing, and plug and play design wire harness. These screens DO NOT need an external contrast POT like you may have seen in the early release of the screens and in the install video. You will need to use the brass grommets from your old LCD screen when installing the XLCD.
The LCD screen is very easily installed as you can see from our instructional video linked below. Typical install takes about 20-30 minutes and only requires a Phillips screwdriver. (Please note: MPCstuff is not responsible for any issues that may arise when you are installing screen).
ABOUT THE OPERATING SYSTEM: To learn more about the operating system, click here. There are a several operational videos below. If you are interested in a more full-featured version of the OS, the paid version of the JJ OS made specifically for this LCD screen is available from JJ OS click here.
PLEASE NOTE: Akai is a registered trademark of Akai Pro. These LCD screens are not made or endorsed by Akai Pro. The OS is made by JJ OS. They are aftermarket products and should be installed at your own risk. Without installing the new OS the LCD screen will only show on half of the screen, just as it did with the smaller LCD screen.
MoniServ, Inc.(lcdparts.net/lcdpart.com), we carry thousands of replacement parts for all types of industrial LCD screens (LCD panels), such as the LCD screens for ATM, PLC, Kiosks, POS, CNC machinery, Medical, Gaming, Digital signage, Avionic and other industrial applications. Varieties of LED backlight upgrade kits are also available! With simple tools, you can repair these expensive display assemblies at the fraction of the cost
The LCD business card has a 2.4″ LCD TFT lens with a resolution of 320×272 pixels. The screen ratio is 4:3, which means your video should be shot or edited to the same aspect ratio to get the best results.
The vast majority of video footage is shot using an aspect ratio of 16:9. If we try and install this to the device, you are in effect trying to squeeze an oblong into a square, and the results are that a black bar will display at the top and bottom of the screen. Because the LCD business card’s screen is only 2.4-inches across the diagonal plane, this makes a small screen even smaller! So, for best results, make sure your video is edited to, or shot, in a 4:3 aspect ratio.
As with all video brochures, the video content of the LCD business card can be removed and replaced; however, because of the unusual aspect ratio, it needs to be run through a converting process using a piece of freeware, available here to download. If you are already a customer and are having problems converting your file, we will do this for you as part of our customer support guarantee. All you have to do is upload your artwork file to our free WeTransfer account, and within 24 hours, we will have to file back to you, ready to install, using the USB cable provided.
Selling to large organizations can be a complicated process with a large number of decision-makers and stakeholders holders in the approval process. Having your sales personnel initiate 1-2-1 presentations with each influencer in the buying cycle is unrealistic, and relying on an internal advocate to accurately position your business and solution, unreliable; this is when the LCD business card can come into its own.
The 2.4- inch LCD business card is small, compact. It plays instantly upon opening, meaning the recipient has a compelling elevator pitch, which they can use for reference and show their co-workers when questions arise regarding your product or service offering.
Traditional brochures are not conducive to modern office environments or the increase in home working. The standard office library – filing cabinets and hard copy workflows are increasingly a thing of the past in a modern cloud-based storage environment. Therefore, something small, neat, compact, and fully automatic, without the need for any installation, set-up, or connection is a unique opportunity.
If you would like to receive a sample of the LCD video brochure, you can order one free of charge here, alternatively, speak to one of our account personnel, schedule a call, or email us.