Make PS2 Keyboard Read Display System with Arduino

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Web site:

http://www.instructables.com/id/How-to-Make-PS2-Keyboard-Read-Display-system-Based/

Project Summary:

The advantages of using PS2 keyboard design are the automatic scanning, automatic identification, and automatic coding of the keyboard. Only when you press the keys, the data will be sent out, which reduces the burden of CPU. It is very convenient to use LCD1602 to display. It is a very simple and low-cost analog keyboard display system.

Full Project:

The operating voltage of PS2 Keyboard read display system is DC 5V. When you press the keys of letters or numbers, the LCD1602 will display correspondingly and also can control the size of the letters.The advantages of using PS2 keyboard design are the automatic scanning, automatic identification, and automatic coding of the keyboard. Only when you press the keys, the data will be sent out, which reduces the burden of CPU. It is very convenient to use LCD1602 to display. It is a very simple and low-cost analog keyboard display system.

Functions:
1.when you press the keys of letter or number only, the LCD1602 will display the letter or number correspondingly.
2.when you press the keys of shift plus letter together,the LCD1602 will display the capital letter.

Circuit diagram:

Bill of Materials:

1 .ICStation ATMEGA2560 Mega2560 R3 Board Compatible Arduino
2.830 Point Solderless PCB Bread Board MB-102 Test DIY
3.1602A HD44780 Character LCD Display Module LCM Blue Backlight
4.PS2 keyboard
5.Breadboard Plug Wire Cable Tire
6.Dupont 20cm Color Cable Line

The material of the related module :1602A HD44780 Character LCD Display Module
http://www.icstation.com/ebay/IC/All%20data%20modules/1419.zip

 

Software & Code Snippets: