Containing three of my latest purple board - yes, the one that goes with the mysterious East European item - and a purple sticker.
Update: assembled the right (i.e., Eastern-facing) end of the board this afternoon, and spent an hour or so playing mad scientist with this, various bench instruments (power supply, pulse generator, scope, voltmeter), and the Mystery Item. It works! Next up: populate the MCU and a few other parts, and throw together the basic operating firmware. Then, the left end (USB interface), and some rinky-dink Ruby program for demo purposes.
I expect to be turning this into a Genuine Product (actually, 2 or 3 closely-related products) sort of June-July-ish, assuming an ongoing supply of Mystery Items can be negotiated. Watch for an announcement.
Update, Sunday afternoon: MCU is now controlling the interface section (in a rudimentary way, as I'm missing a small but important component at the moment), and taking measurements. Another few hours should have the dingus fully operational. When those few hours will be... well, I've got a busy week coming up.
Update, Thursday lunchtime: hardware is now fully armed and operational. I'm sending measurements back to the host PC via the FT201X. Just need to implement the rest of the firmware features, and it'll look remarkably like a Product (modulo packaging and suchlike details). This afternoon, though, there's Real Work to be done.