Update luther's layout Update luther's layout organize a bit with a 7-segment display 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 LED and photoresistor 3 Lead Plastic Package OnSemi CASE 100AQ for QRE1113, see https://www.onsemi.com/pub/Collateral/QRE1113-D.PDF OnSemi CASE 100AQ for QRE1113, see https://www.onsemi.com/pub/Collateral/QRE1113-D.PDF OnSemi CASE 100AQ for QRE1113, see https://www.onsemi.com/pub/Collateral/QRE1113-D.PDF OnSemi CASE 100CY, light-direction upwards, see http://www.everlight.com/file/ProductFile/ITR8307.pdf Relay SPST, http://www3.panasonic.biz/ac/e_download/control/relay/power/catalog/mech_eng_jw.pdf?via=ok Relay SPDT HJR-4102 Relay SPDT Omron Serie G6EK, see http://www.logosfoundation.org/instrum_gwr/pi/Omron_G6E_134P.pdf Relay SPDT Omron Serie G6EK Panasonic Relay SPST, https://www3.panasonic.biz/ac/e_download/control/relay/power/catalog/mech_eng_lfg.pdf Bourns rotary encoder, PEC12R, with switch, horizontal shaft, https://www.bourns.com/docs/product-datasheets/pec12r.pdf Bourns rotary encoder, EC12E... With switch, vertical shaft, http://www.alps.com/prod/info/E/HTML/Encoder/Incremental/EC12E/EC12E1240405.html Alps rotary encoder, EC12E... With switch, https://www.cui.com/product/resource/sj1-353xng.pdf TRS 3.5mm, horizontal, through-hole, , circular holeshttps://www.cui.com/product/resource/sj1-353xng.pdf TRS audio jack stereo horizontal waterproof 6.35mm (1/4 in) Vertical Jack, 3 x switching (normalling) stereo jack and switching ground contact, vertical PCB mount, retention spring instead of the panel on the back of the arrow shaped hole you can be socketed for experimentation, soldered, or socketed at first and then abort the print, to test spell names in Filmoscope Quentin/Panels/MIRROR.