Midibox CV schematic?

[mbira]

Hi folks,

I'm looking into building the midiboxCV. Is there a schematic somewhere? I don't see it on the details page. Also, (and I understand if these are not available), but has anyone come up with a bom or artwork for the layout of the boards? I'm a home-etcher, so I'll be hopefully building these using through-hole parts...

[nebula]

Hi mbira, there is no single schematic because the hardware platform suggests building individual modules. You'll require a Core module, a DIN for the buttons (DINX1 actually, easiest to build on perfboard) and an AOUT for the CV outputs - there are 3 varieties of AOUT, all with pros and cons. Their schematics are all on the ucapps site. You could lay out a board with all that stuff, or download the layouts to the existing boards and start etching yourself. There is nothing stopping you from putting one layout right beside the other layout on the same board if you like.

I think you can also use a DOUT for additional gate outputs. There's an article about that in the wiki.

The best all-around AOUT (inexpensive, parts readily available, good pcb layout) is probably the AOUT_NG, and the existing layout for that isn't really suitable for home etching, but boards are readily available from Smash TV.

Don't forget you'll want a good quality bipolar power supply.

[mbira]

Thanks so much, nebula! I love the modular nature of this, and it's great that the core module is used in all the projects.