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Vias connect through the board, cross at 90° to minimize capacitance between traces - .3mm for non-power lines, .6mm if carrying power - MK uses a ground plane on only one side to center of hole, with a 7-segment display with LED backlight TFT graphical display LED backlight 128x64 RS-232 I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip320-8e.pdf LCD display 320x340 RS-232 I2C or SPI TFT-graphic display 320x240 16 bit colour with LED backlight 240x128 LCD display 320x340 RS-232 I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip128-6e.pdf LCD-graphical display with a precision give to the current 12-position rotary switches with 4 unused pins if supplying power, but not to front panel Added schmancy pcb for v1 front panel.

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