IBM iPoint keyboard--anyone have any ideas?

[Chuck(G)]

Was not aware of the receiver's existence, search as I might. PS/2 interface on the PC end? There were several versions of the keyboard, IIRC. Is yours the subject one of this thread? From what I can gather, the Silitek/LMS SK-7500 was a combo affair--and the keyboard doesn't look anything like the IBM iPoint board that's the subject of this thread. Also sold at one time by Unicomp. Could have been a special version spun for IBM, however. (Silitek is/was a subsidiary of Lite-On).

Also this note:

The I-Point was an integrated pointing device found solely on the IBM Wireless Infrared Keyboard (SK-8807) and IBM Wireless Navigator Pro Keyboard (SK-8810). In contrast to the more famous TrackPoint, the I-Point acted similarly to a typical game console controller's analogue joystick input. A similar technology may have been used for the Silitek PS/2 Wireless Rubberdome Keyboard (SK-7500) sold by Unicomp.

One of my "around to it" projects is to increase the bitrate from 1200 to 2400. 1200 is a bit slow when you're talking about repeated keystrokes. For the price of an integrated UART on an MCU and a cheap 3-pin IR receiver module, it might make a handy addition to micro-controller-based device, such as a serial terminal. Add an LCD display and Bob's your uncle...

 

[Bill-kun]

The model number of my keyboard is 19K1800, serial number 3261. Here are photographs of the keyboard and receiver. The keyboard has what look like programmable buttons on the top row with write-up spaces. There is a green LED to the left of them, which I thought was a power LED, but it hasn't lit up. I assume the programmable buttons need proprietary software, which I don't know of or have. Maybe the LED is for when the programmable buttons are used.

The status LEDs (numlock, etc.) are on the receiver, which supports your observation that the keyboard is send-only. As you can see, the cord of the receiver splits into a PS/2 connector for the keyboard and a DB9 serial connector for the mouse. This unit as it came to me also came with an adaptor to convert the serial to PS/2. I used it with the adaptor and the joystick-mouse works pretty well. The two buttons on the left corner of the keyboard are for left and right mouse clicks; I must admit, that would make it at least nearly impossible to play many games such as Wolfenstein 3D.