Wireless Keyboard

SAN

Hello everyone....

I am trying to build one wireless keyboard using propeller and Parallax Easy Bluetooth module. I want to make the normal PS2 keyboard wireless
using the propeller micro-controller. Now i am able to send the data from the transmitter section to receiver .... but i don't know how to
connect the receiver micro-controller to PC so that it can receive the keyboard data and work as a normal keyboard.

Can any one help me.. please.. ?

Mike Green

You can certainly build a Propeller interface between a PS/2 keyboard and a Parallax Easy Bluetooth module that simply takes the typed keycodes and sends it over Bluetooth. You haven't said whether you want to have this all act like a Bluetooth keyboard for the PC or if you have some interface (like another Propeller) between a 2nd Easy Bluetooth module and the PC. If you want the 1st, you'll have to write a PC driver that sits in the background between the virtual serial port of the Bluetooth driver and the PS/2 keyboard driver. If you want the 2nd, you'll need to write a program that works like a PS/2 keyboard. You might need a 3.3V to 5V bidirectional level translator like those shown in the Propeller "sticky thread" here http://forums.parallax.com/showthread.php?p=791527 under "Technical Considerations". I think there was a Propeller demo program posted (as an attachment to a message ... not in the Object Exchange) that emulated a PS/2 keyboard. You'll have to browse for it. I don't have a link. Maybe someone else has the link.

SAN

Thank you sir......
Actually I want to build the first type.....I want to build it like a Bluetooth keyboard for PC.
I dont know how to write that PC driver. Only this problem I have.

Can you please guide me how to do this ?

Mike Green

Writing a PC driver like this is complex and way outside the scope of these forums. If you don't have enough experience to do it yourself, we can't help you there.