So, what is this MiniBox?
Basically, it is the same as the ButtonBox2 (see ButtonBox2 description for information), but with a couple of differences:
It uses another, smaller CPU, an Atmel AT90S2313. | |
It is a bit cheaper to build than the ButtonBox2. | |
Unfortunately it has less program space. | |
It has also less EEPROM space. | |
It has less RAM. | |
It can only connect up to 32 buttons (in an 8x4 matrix). | |
No support for Caps-Lock, Num-Lock and Scroll-Lock LED indicators. |
Here is a list of the MiniBox features:
Can only be used in Matrix mode. | |
Up to 32 buttons can be connected (8x4 matrix). | |
No "ghosting/masking key" problems. | |
Which button that sends which keystroke is configurable from the PC using a configuration program. | |
No external power needed, it uses power from the keyboard interface. | |
The software in the MiniBox can be upgraded via the PC's parallel port (a special cable is needed). |
As with the ButtonBox2, you have to build the MiniBox yourself. I have no plans to start to manufacture and sell these devices. Hopefully the description on these pages contains enough information to build a MiniBox from scratch.
But if you decide to build one, you can download all software I have written for the device for free from the software page. I cannot guarantee that it works flawlessly on your system, but if you get any problems with it I will try to help you to solve them.