| multiple keyboards [message #379151] |
Sat, 29 December 2018 01:31  |
|
|
Originally posted by: Anthony Adverse
I don't know what the limits are to the ADB and how many keyboards you could actually string together, I know it'll cope with 2 happily. But it seems like a great way to run a 2 player game of some type. The only things I can't think of off hand are antiques like Old Ironsides, and some of the basic games like Galaxy so you don't have to hotseat it. Were there any others that this theory worked well with?
A
|
|
|
|
|
|
| Re: multiple keyboards [message #379453 is a reply to message #379151] |
Sun, 06 January 2019 02:38  |
|
|
Originally posted by: groink_hi
The real limit is the amount of current available on the bus. It is impossible to have 127 devices when the ADB controller is only providing 500mA to the bus (could be more than 500mA on some systems, but Apple only guarantees 500mA.) Under Apple specifications, manufacturers were allowed to draw a maximum of 100mA per ADB node. So you're probably looking at no more than four or five devices on a single ADB.
|
|
|
|
| Re: multiple keyboards [message #379454 is a reply to message #379151] |
Sun, 06 January 2019 02:58 |
|
|
Originally posted by: groink_hi
If you're into microcontrollers like Atmel or Microchip stuff, you could write an ADB device emulator, and make the ADB controller think there's 127 devices. ADB is basically a bus, so you could keep sending the ADB controller fake ADB nodes. Maybe create 127 mice, and have each of them move the mouse pointer one pixel at a time. Now that would be cool to see. Or have 127 keyboard, each keyboard type one character each.
|
|
|
|
Members
Search
Help
Register
Login
Home
