Special Design for Automotive LCD Display for Libya Manufacturer
Sinda Display Technology Co., Ltd. is one of the best China LCD display manufacturers and suppliers. We can custom LCD display exactly according to your request. Now we are provide customs display for instrument like digital panel meter,multimunction meter,elevator, POS machines, LGP Dispenser, Fuel Dispenser, Oil Dispenser, Gas Dispenser, Flow Meter, KWH Meter, Energy Meter, Water Meter, Gas Meter, Smart Meter, Clock & Watch, Telecommunications device, Home Appliance, Industrial Contro...
Special Design for Automotive LCD Display for Libya Manufacturer Detail:
Sinda Display Technology Co., Ltd. is one of the best China LCD display manufacturers and suppliers. We can custom LCD display exactly according to your request. Now we are provide customs display for instrument like digital panel meter,multimunction meter,elevator, POS machines, LGP Dispenser, Fuel Dispenser, Oil Dispenser, Gas Dispenser, Flow Meter, KWH Meter, Energy Meter, Water Meter, Gas Meter, Smart Meter, Clock & Watch, Telecommunications device, Home Appliance, Industrial Controller, Car Audio, Color Display Systems and the other industries, Measurement device, UPS, Solar Inverter.
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we can easily offer you high-quality products and solutions, competitive rate and very best shopper support. Our destination is "You come here with difficulty and we give you a smile to take away" for Special Design for Automotive LCD Display for Libya Manufacturer, The product will supply to all over the world, such as: Liberia , New York , Portugal , We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market. We are willing to cooperate with business friends from at home and abroad and create a great future together.
Keypad is a widely used input device with lots of application in our everyday life. From a simple telephone to keyboard of a computer, ATM, electronic lock, etc., keypad is used to take input from the user for further processing. In this article we are interfacing keypad with the MCU AT89C51 and displaying the corresponding number on LCD. This module can be further used in a number of systems to interfaced keypad with microcontroller and other processors to get desired output. The program to interface keypad with controller is written in C language which is very easy to understand.
Keypad is organized as a matrix of switches in rows and column. The article uses a 4X3 matrix keypad and a 16×2 LCD for displaying the output of keypad.
The circuit diagram shows the connection of keypad with the controller. Port P2 of the microcontroller is used to send the data for displaying on the LCD. P1^1, P1^2, P1^3 pins of microcontroller is connected to RS, RW, EN pins of LCD respectively. Port P0 is used to scan input from the keypad (refer circuit diagram for connection).
The concept of interfacing keypad with the MCU is simple. Every number is assigned two unique parameters, i.e., row and column number (n(R, C) for example 6 (2, 3)). Hence every time a key is pressed the number is identified by detecting the row and column number of the key pressed.
Initially all the rows are set to zero by the controller and the columns are scanned to check if any key is pressed. In case no key is pressed the output of all the columns will be high.
Whenever a key is pressed the row and column corresponding to the key will get short, resulting in the output of the corresponding column goes to go low (since we have made all the rows zero). This gives the column number of the pressed key.
Once the column number is detected, the controller set’s all the rows to high. Now one by one each row is set to zero by controller and the earlier detected column is checked if it becomes zero. The row corresponding to which the column gets zero is the row number of the digit.The above process is very fast and even if the switch is pressed for a very small duration of time the controller can detect the key which is pressed. The controller displays the number corresponding to the row and column on the LCD.
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Anaptyxi is an immersive personal growth visualization. It is a multichannel audio and video installation that spans a laptop, projector, CRT, large LCD screen and a small LCD screen. It also includes a printed manual.
This is the HD component of Anaptyxi. It is a 1920 x 1080 video displayed via bluray on customized 42 inch 1080p HD LCD TV.
By Philipppa from Brunei - 2015.05.22 12:13
Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
By Henry from Qatar - 2015.12.30 10:21