05-25-2024, 08:32 PM 
		
	
	
		Yes, this is the exact same type of dongle I want to make for the Blingboard64.  You just plug it in and pair it.  I didn't know that something already exists.  This should be fully compatible with the Blingboard64 since Bluetooth is universal.
EDIT: I looked at this design and I am pretty sure it won't work with any program that doesn't scan the C64 key matrix the exact same way that the C64 does, which is drive the rows low sequentially and read the columns. If you do the reverse, which some programs do to try to eliminate "ghost" keys (multiple simultaneous key presses that can result in a random key appearing to be down), it is likely that it won't work. I tried this in the beginning, just using a couple of analog muxes to emulate the cross-point switch and that is when I discovered the issue that requires the expensive solution. This works fine for BASIC and simple things, but anything custom can be fail.
	
	
	
	
EDIT: I looked at this design and I am pretty sure it won't work with any program that doesn't scan the C64 key matrix the exact same way that the C64 does, which is drive the rows low sequentially and read the columns. If you do the reverse, which some programs do to try to eliminate "ghost" keys (multiple simultaneous key presses that can result in a random key appearing to be down), it is likely that it won't work. I tried this in the beginning, just using a couple of analog muxes to emulate the cross-point switch and that is when I discovered the issue that requires the expensive solution. This works fine for BASIC and simple things, but anything custom can be fail.

