Just got my digital board prototype from Seeedstudio today.
It’s got spi in for a set of dac’s and ioexpanders to digitally control all voice card parameters. It also has inputs for 2x gate/cv, Fine tune, noise, pw, and the other parameters coming from the main board.
The idea is to build a crowbx-pander, or basically an xpander with obx voice cards. Each digital host card takes two voice cards so that by controlling four of these one can have an eight voice with four way multitimbral or four layers, or whatnot.
I haven’t finished my first voice card yet, so I can’t test it yet, but I am giving up waiting for the 2.4 bom so I just submitted a mouser order and have a tayda order waiting for the next discount code and then we shall see if the damn thing works.
I can see I did mess up the silk screen, must have forgotten to turn on some layer for component values, but that’s easily fixed.
I’ll keep you guys posted - once it works I’ll post the plans.
Here’s the card: