You see 'R' , 'S', 's', or other charactors on hid_listen when hot-plug the keypads *several times*? Or really nothing? They work with iMate, right?
I think keypad consists of usual 'keyboard' and 'mouse' in terms of ADB protocol, I guess no 'trick' is required.
First try 1k ohm pull-up and then 470 ohm if 1k doesn't work.
Also try on Windows or Linux.
Let me know more info about the keypads like product name or FCC ID. It would be helpful if you can find manual or other documents in the net.
I have tried with the 470 ohm resistor.
I have nothing on the logs. The first one turn on (there is LED), the second is working, but only the trackball side, the last is turning on, and that's all.
And yep, they are working with iMate.
First one : NT-MAC2ST by Sanwa Supply. A basic keypad, with an female ADB to chain.
Second : Scorpius 19ADB, FCCID : F2QKPT19ADB. This one contain a trackball and ADB female.
Three : Model 9602, FCCID : FTR9602. This one is a keypad and a calculator, with a little display. And a cool things : it's possible to make a operation and paste the result to the Mac.
Japanese specific keys will be recognzied if you select Japanese layout on your OS, or you can remap the keys on Keymap Editor.
How do the keys work with iMate?
I have tried with the layout (with macOS) and i have nothing (event with the iMate). The keyboard send the code, but i have nothing on screen (and nothing on my HID software).
For the "RightAlt", it's very weird : with your adapter, the left option key (it's the only option key on this keyboard) send "RightAlt". And with the iMate, it sends "LeftAlt".
Actually, i join the logs with the 4 keys who are "not working".
Log is needed for the keys and startup.
Media keys on Apple Adjustable Keyboard are supported but NeXT may require other code.
The power key are not on the log (nothing appear).
The Down Brightness send 79FF F9FF
The Up Brightness send 74FF F4FF (but i must press very strong, i think i must clean the keyboard)
The Up Volume send 73FF F3FF (Home), like the precedent (i must press very strong).
Actually, it will be a hardware problem, i will try to clean the keyboard.
Try and see if this firmware from Jan, 2018 works if the firmware worked before.
https://github.com/tmk/tmk_keyboard/tree/14e9a84c9c3b571cc932fcaaedbdb9354dbc2697/converter/adb_usb/binary
I have tried with the old firmware, it works. I have used the AlphaSmart as a keyboard, and i can send text for the word processor to the Mac.
You mean Left shift key both left and right shift at same time? That is weird and interesting. The converter doesn't anything like that for shift keys.
I guess keyboards do that. What are name of the keyboards exactly?
Extended keyboard(M0115/M3501) and compatibles can send correct left and right shift respectively. While standard keyboard(M0116) sends only Left shift.See the first post.
Mic key sends 'Play/Pause' on Adjustable Keyboard.
No, i mean that the keyboard send leftshift for the lef shift, and rightshift for the right key.
OK, its the problem in the first post : i suppose the NeXT keyboard is extended and send the correct key.