OpenBeam USB Gauge
by unrepentantgeek, published
Inspired by hudson I designed a different enclosure for my USB Gauge out of OpenBeam and laser cut birch plywood.
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Cut flat stock out of whatever you like. I used 5mm birch but other thicknesses will work. The layout includes an extra panel so you can choose whether or not to put a button on the top.
You will also need:
20 x Openbeam L plates 8 x 90mm openbeam 4 x 120mm openbeam 4 x openbeam feet 4 x rubber bumpers 4 x 1/8"ID, 1/4" length standoffs 1 x 2.25" panel meter 1 x 16mm button (http://adafru.it/558) 1 x Arduino Uno (or similar) 104 x M3x6 bolts 23 x M3x10 bolts 4 x M3x16 bolts 131 x M3 nuts Hookup wire
Bolt it all together and hide an Arduino inside. Follow the directions at http://www.nycresistor.com/2012/09/17/analog-gauge/ to write up and program the microcontroller.
For my box I installed an Arduino and used the Firmata firmware to communicate with the board. There is some example code at https://github.com/unrepentantgeek/MeterBox as well as the most up to date Sketchup file.