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IRled Communication With PS2 Keyboard

IRled Communication With PS2 Keyboard

nagamma06

Published March 02, 2021

40 UCC

20 VAR

Original source (new tab)

Components

Hardware components

arduino

x 1

ps2 keyboard

x 1

ir led tx and rx

x 1

mbed board platform (WIZwiki-W7500p)

x 1

Project description

Step 1: Hardware We Need

Hardware We Need
Hardware We Need
Hardware We Need
First I will introduce a hardware we need to do this project. 1. arduino 2. ps2 keyboard 3. ir led tx and rx 4. mbed board platform (WIZwiki-W7500) And picture show us how to connect the boards and component.

Step 2: PS2 Keyboard Connection

PS2 Keyboard Connection
I need to explain about how to connect PS2Key board and arduino. But it is more easy to see the below. You can know all about from below. http://www.pjrc.com/teensy/td_libs_PS2Keyboard.html

Step 3: Software for Arduino

Software for Arduino
Arduino is working receive a key value from ps2 keyboard And send it to UART for irled communication. Here we have to connect irled to PWM for 38KHz modulation. It is very simple. I used a library of PS2Keyboard and just add a PWM and UART function.

Step 4: Software for WIZwiki-W7500P Platform

Software for WIZwiki-W7500P Platform
Software for WIZwiki-W7500P Platform
mbed source code is more simple. You can see the picture. It receive ir led data from UART and send it directly to PC serial. That is all.. The key of this project is UART IRled. Please refer http://dangerousprototypes.com/blog/2009/08/26/easy-infrared-data-link/

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