20x4 character lcd module display quotation

Newhaven 20x4 character Liquid Crystal Display shows characters with white pixels on a blue background when powered on. This transmissive LCD Display requires a backlight for visibility while offering a wide operating temperature range from -20 to 70 degrees Celsius. This NHD-0420DZ-NSW-BBW display has an optimal view of 6:00. This display operates at 5V supply voltage and is RoHS compliant.

Easily modify any connectors on your display to meet your application’s requirements. Our engineers are able to perform soldering for pin headers, boxed headers, right angle headers, and any other connectors your display may require.

Choose from a wide selection of interface options or talk to our experts to select the best one for your project. We can incorporate HDMI, USB, SPI, VGA and more into your display to achieve your design goals.

We offer character LCDs and graphic LCDs as modules or COG (Chip On Glass) displays in a wide array of character and pixel configuration sizes. From yellow/green, red, orange, green, blue, amber, white, and RGB backlight colors to displays without a backlight, we have the perfect LCD for your application.

Liquid crystal displays (LCD) come in two main types that are of interest to hobby and DIY makers; Character LCD displays and pixel / graphic LCD displays. This intro How To will be covering the more popular and lessread more...

This is LCD2004 Parallel LCD Display that provides a simple and cost-effective solution for adding a 16X02 or 2004 Greenor BlueLiquid Crystal Display into your project.The display offers clear and high contrast whiteread more...

Character module displays are compact size displays widely used, especially in industrial sector. Using liquid crystal display (LCD) technology, this module is able to take advantage of the light modulation properties of liquid crystals using flat display technology.

Character module displays are usually offered in standard format: 8x1, 8x2, 12x2, 16x1, 16x2, 16x4, 20x2, 20x4, 24x2, 40x2, 40x4; individual modules are integrated into complex interfaces, with the aim of increasing readability and visualization. Digimax character module display solutions can be integrated with a large number of interface including 8080, SPI and I2C.

These modules represent major graphemes such as English/Japanese, European, Scandinavian, Cyrillic and Hebraic/Arabic. The color of LED backlight can be customized: yellow-green, white, blue, black and grey.

Digimax has a wide range of character LCDs in a variety of formats: perfect solutions for those want realized compact systems for which display of information is required, such as audio systems, temperature management, home appliances, medical devices and general devices dedicated to reading information.

On previous tutorials on our website, we have covered the use of several displays, LCDs, and TFTs, with diverse Arduino boards. From Nokia 5110 LCD display to different types of OLEDs, the reason for the tutorials has been to ensure that, as a reader, you know how to use many of the most popular displays so this help you make the best choice when trying to select the perfect display for your project. For today’s tutorial, we will continue in that line and examine how to use the 20×4 I2C Character LCD Display with Arduino.

The 20×4 LCD display is essentially a bigger (increased number of rows and columns) version of the 16×2 LCD display with which we have built several projects. The display has room to display 20 columns of characters on 4 rows which makes it perfect for displaying a large amount of text without scrolling. Each of the columns has a resolution of 5×8 pixels which ensures its visibility from a substantial distance. Asides its size, the interesting thing about this version of the display being used for today’s tutorial is the fact that it communicates via I2C, which means we will only require 2 wires asides GND and VCC to connect the display to the Arduino. This is possible via the Parallel to I2C module coupled to the display as shown in picture below. The I2C module can also be bought individually, and coupled to the 16 pins version of the display.

To demonstrate how to use this display, we will build a real-time clock which will display date and time on the LCD. To generate and keep track of date and time, we will use the DS3231 Real time clock. We covered the use of the DS3231 RTC module in the tutorial on DS3231 based Real-time Clock, you can check it out to learn more about its use with the Arduino.

Since the display and the real-time clock are both I2C devices, they will be connected to the same pins on the Arduino. For the Arduino Uno, the I2C pins are located on Pin A5 (SCL) and A4 (SDA). This may differ on any of the other Arduino boards. Connect the components as shown in the schematics below;

To write the code for this project, we will use three main libraries; the DS1307 Library to easily interface with the DS3231 module, the liquid crystal I2C library to easily interface with the LCD display, and the Wire library for I2C communication. While the Wire library comes built into the Arduino IDE, the other two libraries can be downloaded and installed via the links attached to them.

As mentioned during the introduction, our task for today is to obtain time and date information from the RTC module and display on the LCD. As usual, I will do a breakdown of the code and try to explain some of the concepts within it that may be difficult to understand.

We start the code by including the libraries that will be used. After which we create an object of the Liquid crystal library, with the I2C address of the LCD as an argument. The I2C address can be obtained from the seller or as described in our tutorial on using the 16×2 LCD display to ESP32.

Next, we create a set of variables which comprises of byte arrays that represent custom characters to be created and displayed.  The custom characters are usually 5pixels in width and 8 pixels in height, representing each box in the rows or columns of the LCD. The byte array represents which pixels of the box to be turned on or off.

Next, we write the void setup function and start by initializing the library using the lcd.begin() function, with the first argument representing the number of columns, and the second argument representing the number of rows. After this, the CreateCustomCharacters() function is called to convert the char variables created above into characters that can be displayed on the LCD. One of the characters created is then used to create a UI/frame which is displayed using the printFrame() function.

The first function is the printTime() which breaks down the time data stored in the “tm” variable to extract seconds, minutes and hour values. These values are then displayed on the LCD using the lcd.print() function.

The printDate function is similar to the printTime function. It extracts date information from the variable tm and uses the lcd.print() function to display it.

Other functions include the createCustomCharacters() and the printFrame() functions. The createCustomCharacters() function, as the name implies, is used to create custom characters using byte arrays. The function takes two arguments; the character number, and the variable to in which the byte array for that character is stored. Only 7 characters can be created at once as such the character number is usually between 1 and 7.

The printFrame() function, on the other hand, was used to create a sort of user interface for the project. it makes use of the characters created above. Each of the custom characters created is displayed using the lcd.write(byte(x)) function with x being the character number of the character to be displayed. The characters are positioned on the LCD using the lcd.setCursor() function which takes numbers representing the column and row on which the character is to be displayed, as arguments.

Different projects, come with different screen requirements. If you need to display a large amount of information and the size is not a constraint, the 20×4 I2C display is definitely one of the options you should consider.

20x4 lcd module character is a root category including various types of character displays, including character display panels, arduino character display, character display modules, and more. The displays have an LED backlight and are able to display characters such as letters, numbers, and punctuation marks for application in various kinds of machines, data loggers, and measurement devices.

Different 20x4 lcd module character options are equipped with controllers or driver chips that contain built-in character or font tables and have become widely popular in multiple industries. You can find routers that come preloaded with characters for multiple languages, including English font, along with many other international languages that are also available. There are also options for either negative mode or positive mode on monochrome display, so you can find 20x4 lcd module character options that are able to achieve the right appearance you want for your use.

You can find a different range of displays under this category to suit your specific application, such as alphanumeric displays, scrolling message character displays, and various size configurations, including 16x2 character displays, 16x4 character displays, 20x2 character displays, 20x4 character displays, 24x2 character displays, 40x2 character displays, 8x1 character displays, 20x2 character displays, 40×4 character displays, and many more different sizes.

If you"re looking to source bulk 20x4 lcd module character products for your business or wholesale 20x4 lcd module character modules for reselling, you can find multiple options on Alibaba.com to suit your needs. Products are available at different price ranges to suit different wallets.