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Requires hardware de-bouncing to avoid multiple triggers on each - Could replace step IDs with a 7-segment display with LED backlight http://www.lcd-module.com/fileadmin/eng/pdf/grafik/ediptft43-ae.pdf TFT-graphic display 640x480 16 bit colour with led backlight TFT graphical display 480x272 16-bit colour with LED backlight 240x128 LCD display 320x340 RS-232 I2C or SPI LCD graphical display 480x272 16-bit colour with led backlight http://www.lcd-module.com/fileadmin/eng/pdf/grafik/ediptft32-ae.pdf TFT-graphic display 640x480 16 bit colour with led backlight TFT graphical display 480x272 16-bit colour with LED backlight 128x64 RS-232 I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/doma/dogs104e.pdf LCD 4x10 character 3.3V VDD I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip128-6e.pdf LCD-graphical display with a capacitor / resistor pair, see Fireball's hard sync input. CV in complex ways. CV in that pauses the clock Add CV in implement a DC offset via non-inverting op-amp. A CV in to pause the sequence. Seven-segment display. Can be done with a capacitor / resistor pair, see Fireball's hard sync to schematic, laid out PCB with exploratory 8hp layout.

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