Monday, 9 May 2011

Shadow Harp/Invisible instrument

With the USB servo controller board pretty well complete (well, the hardware and firmware at least - there's some software to do, making animation creation simpler, but for now, anyone with Notepad can create a simple animation script) thoughts are turning to the BuildBrighton music gig at the end of May, as part of the Brighton Fringe Festival.

With a working prototype already in the bag, and an enclosure design already planned, if not drawn out yet, it's time to put the whole thing together onto a PCB and get soldering!

Here's the first version of a PCB. It's not been tested yet, but has been built with reference to the schematics posted earlier.

Shadow Harp v1 Pcb
As always, print at 100% landscape orientation for press-n-peel toner transfer to make your own version of the invisible instrument

Refer to the schematics and follow the silkscreen layout below for help placing components on the border before soldering:

This layout has been updated, to include the USB socket on the board but more importantly, the orientation of the LDRs has changed. On this board, the LDRs will not bend easily side-to-side, which is important for setting up the device to play! An updated layout will be posted shortly!