Newbie questions about parts list

MIDIbox SEQ
1

I’m thinking of building a MBSEQ v4. Already added myself to the buy list for the wilba PCB. I just had a few questions:

  1. I’ve seen some builds with an externally accessible SD card slot on the back panel, but no mention of this in the documentation or any build instructions I could find. I’m guessing if I can find a suitable SD card socket, I can just solder the pinouts from that to the core board via some cabling? FWIW, I’m planning to go with LPC17.

Here is what I understand I will need, does this list sound right?

  1. Core board (LPC17)

  2. LPCXPRESSO (from mouser)

  3. Wilba’s CS PCB and components needed to assemble it (kit + whatever isn’t included)

  4. 2 2-line 40 character LCD panels. I’m seeing 17", 19" and 20" mentioned in various places, what size goes with the Wilba board? or am I an idiot and those measurements apply to something else?

  5. Enclosure. I would like a desktop version. I have access to a makerspace with some nice equipment, might try to make my own :-).

  6. (Optionally) IICs for more midi out ports. Not sure if I want to do this yet. But I do have more than two devices to control.

  7. Power supply

Am I missing anything?

Thanks for your help, super excited about some day having one of these :slight_smile:

2

Welcome!

The list sounds good (you also need parts for the Core board ofc, but Tim/SmashTV sells them in a nice package).

Yes, you can solder to any SD Card slot (or even disassemble an el-cheapo USB-SD Adapter which is available for less than 2 bucks, often cheaper than a standalone SD card slot :))

Regarding the 40x2 character LCDs, afaik they come only in one industry standard size (also look for HD44780 compatibility) , but better check the LCDs datasheet - you can compare the dimensions (e.g. for the mounting screws) with the dimensions of Wilbas control-surface PCB (it is in the Wiki). Probably the 17/19/20 inch stuff refers to the overall width of the sequencer aluminum panel.

The SEQ V4 definitely rocks, you won´t regret the build for a second :slight_smile:

Greets,

Peter

3

Oh duh. That makes a lot more sense. There’s no way those LCDs are 17". Brain isn’t working today :-). Thanks for the tips though. I’ll probably be back with more questions when it finally comes time to build.