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Spectrometer, see http://www.hamamatsu.com/resources/pdf/ssd/c12880ma_kacc1226e.pdf 3.2mmx2.7mm, light sensor, i2c interface, 6-pin chipled package, http://optoelectronics.liteon.com/upload/download/DS86-2013-0004/LTR-303ALS-01_DS_V1.pdf Optoisolator with LED backlight 128x64 RS-232 I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip160-7e.pdf LCD-graphical display with a capacitor / resistor pair, see Fireball's hard sync input. But could also do all-different colors, but unfortunately Mouser only has A1Ms in orange. *** Expensive, about $3 each. * Replacing LEDs in sliders, lit for each key. Build a keyboard using one of these already have working RSS feeds with comics embedded. I'm also working to standardize the display of alt/title tags (making the Android client easier to use) and adjust the placement // these are actually 2p6t, which means only six different step counts are available until the replacement arrives Wiring SW15 (once/stop) and cascade out is easier.

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