Displays Equipment Philippines - A Liquid Crystal Display commonly abbreviated as LCD is basically a display unit built using Liquid Crystal technology. We need a medium/device to display output values and messages when it comes to building real-life/real-world electronics-based projects. 7 Segment display is the most basic form of electronic display available which has its own limitations. Liquid Crystal Displays is the next best available option that comes in different size specifications. Let us know more in detail about Displays Equipment.
The most commonly used one is the 16×2 LCD Module, out of all available LCD modules in the market, that can display 32 ASCII characters in 2 lines (16 characters in 1 line). LCD displays that are used in common are 20×4 Character LCD, Nokia 5110 LCD module, 128×64 Graphical LCD Display, and 2.4 inch TFT Touch screen LCD display.
With 2 examples, we will learn how to interface LCD to Arduino – one being interfacing a 16×2 LCD module to Arduino and the other being interfacing a 20×4 LCD module to Arduino. Let your Arduino project make a sign for you! Interface your Arduino project with LCD or TFT screens to add visual feedback. We sell easy-to-use TFT, LCD and other display-related goods for Arduino now available in the Philippines.
Interfacing 16×2 LCD to Arduino Uno
The history of LCDs gets rooted back to the 1970s. These display equipment use lower power to become ideal solutions for Arduino projects. You can easily add an LCD display unit to an Arduino design to make it more productive and result-oriented. These panels are versatile in nature and bring inexpensive solutions to all sorts of designs. Further, LCD panels don’t emit light as liquid crystals are sandwiched between two layers. Hence, these circuits block the light entirely to offer a precise piece of amendment in an Arduino project.
It isn’t rocket science to integrate an LCD (Liquid Crystal Display) with an Arduino to make a user interface. These display units are used to showcase data in different devices i.e. microwave ovens, calculators, digital meters, and many other electronic devices.
In this phase, here’s the description of how one can use a 16x2 LCD in the context of Arduino. In many Arduino-based embedded system designs, LCD modules form a very important part. In designing embedded systems, the knowledge on interfacing LCD modules to Arduino is very essential. This section of the article is about interfacing an Arduino to a 16×2 LCD. JHD162A is the LCD module used here. Based on the HD44780 driver from Hitachi, JHD162A is a 16×2 LCD module. The JHD162A can be operated in 4-bit mode, as it has 16 pins. In 4-bit mode, we are using the LCD module which shows how to display a plain text message on the LCD module using Arduino, and other projects using LCD and Arduino – a digital thermometer.
16×2 LCD Module Pin Out Diagram
- The JHD162A Lcd module can be operated in 4-bit mode or 8-bit mode as it has 16 pins. You can check out the JHD162A LCD module before you get into the details of the project.
- Pin3(VEE): Contrast adjustment pin. This is done by connecting the ends of a 10K potentiometer to +5V and ground and then connecting the slider pin to the VEE pin. At the VEE pin, the voltage defines the contrast. Between 0.4 and 0.9V, is the normal setting.
- Pin4(RS): Register select pin. The JHD162A has two registers namely the command register and data register. Logic LOW at RS pin selects command register and logic HIGH at RS pin selects data register. To display on the LCD screen, if you make the RS pin HIGH and feed input to the data lines (DB0 to DB7).
- Pin5(R/W): Read/Write modes. This pin is used for selecting between reading and write modes. Logic LOW at this pin activates write mode and logic HIGH at this pin activates read mode.
Frequently asked questions
What are the well-being chances with Display Screen Equipment?
A few Users may encounter weariness, eye strain, upper appendage issues, and spinal pain from abuse or inappropriate utilization ofDSE. These issues can likewise be capable from ineffectively planned workstations or workplaces. The causes may not generally be self-evident and can be because of a blend of variables.
Does DSE apply to PCs?
Indeed DSE applies to workstations. DSE can likewise apply to work areas, workstations, cell phones, and tablets.
For what reason does working with PCs make my eyes harmed?
PC eye strain has become a significant occupation-related grievance because of the time span numerous representatives are needed to be at their work areas on their PC's. Issues can go from actual sluggishness, expanded number of mistakes to eye jerking or red eyes. The main thing you ought to do is book an eye test to ensure that nothing is truly off-base. Your optician should then have the option to exhort the best answer for you whether that is to utilize PC eyewear, change your workstation, take more breaks or exercise your eyes.
What does an appropriate workstation resemble?
The image beneath shows a PC workstation that has been evaluated and has had upgrades set up, including change of screen to the right tallness, improved lighting, arrangement of a report holder, stool, and amovable seat.
Various LCD Technologies We Use Today
LCD or Liquid Crystal Display is pledged to demonstrate clearer pictures in different electronic gadgets i.e. laptop computers and flat-panel monitors. Having dominance over the traditional CRT (Cathode Ray Tube) technologies, LCD brings a far better appearance to be the modern age leader in the display technology world.LCD panels are cheaper to produce as well against CRTs.
Some of the different types of LCD panels include;
- IPS Display – In-Plane Switching or IPS, in short, is considered to deliver better color accuracy, quality, and viewing experience in LCD technology.
- PLS Display – Quite similar to the IPS panel, the Samsung product, reportedly, provides 10% brighter and wider viewing angles alongside lower production costs.
- TN Display - Twisted Nematic panel technology has become an absolute choice for gamers, given rapid response, affordability, good color contract ratio, and some other features.
- VA Display – Vertical Alignment panels come with better color quality, higher contrast ratios, and viewing angles as compared to TN profiles. But VA has slower response times.
Final Thought
To facilitate communication between Arduino and LCD modules, we make use of a built-in library in Arduino <LiquidCrystal.h> – which is written for LCD modules making use of the Hitachi HD44780 chipset (or a compatible chipset). This library can handle both 4-bit mode and 8-bit mode wiring of LCD.