Advice on PS/2 Scan Codes

[penelopepug]

Thanks Melanie. I'm trying to find a means to avoid the use of a keyboard encoder to receive keyboard commands. For example, if I purchased an RF receiver module that plugs into a USB port of a PC, do I have to develop an application that runs on the PC that would accept serial data and convert it into keyboard commands?

I came accross this page that lists USB 16 bit keyboard positions at
http://www.win.tue.nl/~aeb/linux/kbd/scancodes-13.html.

Does this imply that a USB port can be used to receive keyboard commands directly without running a special application? Any advice would be appreciated.

[Luciano]

http://tekgems.com/Products/tg-pbr.htm

WinAmp Multimedia PC Remote

$4.99 USD

[penelopepug]

Thanks Luciano. I've seen that Packard Bell remote before. That remote is IR, not RF howerver I could likely adapt it However, vertually every remote I have encountered has a very slow command repeat rate for some reason. Do you know if this remote is capable of trasmitting 50 to 100 commands per second? I see the software allows you to set how many times the command is repeated but I wonder about the repeat rate. The other thing I wanted to avoid is having lots buttons that are not used (like the mouse and curser buttons) and buttons whose native funtions are mapped for something else. Currently, my remote (although not exactly pretty) has 13 dedicated buttons for the following commands or macro commands;

Volume Up (Keypad 8) - Fast Repeat Rate Required
Volume Down (Keypad 2) - Fast Repeat Rate Required
Scroll Up (Up Arrow) - Fast Repeat Rate Required
Scroll Down (Down Arrow) - Fast Repeat Rate Required
Queue Track (Q)
Play/Select (Enter)
Play Previous Track (Z)
Play Next Track (B)
Pause (C)
Toggle Shuffle Mode (S)
Sort Playlist By Title (CTRL + ShIFT + 1)
Randomize Playlist (CTRL + SHIFT + R)
Reverse Playlist (CTRL + R)

[Luciano]

Hi,

Maybe I have a solution, but what's wrong with your current
keyboard encoder? Why do you want to replace it?

Best regards,

Luciano

[penelopepug]

Hi Luciano. The use of the encoder was a work-around because I did not have a solution to feed data directly into a USB port. What I have done works perfectly, but it is a crude solution and I want to do this the best way possible. The keyboard encoder was meant to have various arcade buttons connected to it. My pics' software receives serial commands then translates those to simulate buttons being pressed by lowering various port pins connected to the button inputs of the keyboard encoder. I beleive there are serial keyboard encoders ICs but I would like a solution that feeds the commands directly into a USB port if possible. I need to understand a lot more about PC architecture I guess.

[Luciano]

Hi,

See this link.

Human Interface Device (HID) class
http://www.lvr.com/hidpage.htm

Best regards,

Luciano

[penelopepug]

Thanks Luciano. I shall dive in.