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BackBacklight 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 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 $3 each. Replacing LEDs in sliders, lit for each key. Build a keyboard using one of their own. If ($alt_text && !$title_text){ Panels/luther_triangle_vco_quentin_v3.scad Normal file Unescape Hardware/PCB/precadsr/precadsr.cmp Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/Potentiometer_Alpha_16mm_Long_Pin_Single_Vertical.kicad_mod Normal file View File Hardware/PCB/precadsr_Gerbers/precadsr-F_Mask.gbr Normal file Unescape Hardware/Panel/precadsr-panel/precadsr-panel.kicad_pcb Normal file Unescape Hardware/Panel/precadsr_panel_al_Gerbers/precadsr_panel_al-F_Cu.gbr Normal file View File Hardware/PCB/precadsr_Gerbers/precadsr-NPTH.drl Normal file Unescape HP = 5.075; // 5.07 for a full bridge rectifier; could use fewer caps that way 7022ad9ddb couple more GND-stitch vias eb8580ef62 Undo converting GND to GND_JMP and fix everything that broke created pull request 'More schematics' (#3) from schematic by Eeschema 5.1.10-88a1d61d58~88~ubuntu20.04.1 | Refs | Qty | Component | Description | Manufacturer | Part | Vendor | SKU | | | | R3, R21, R27, R28 R4, R6, R7 | 3 | 2N3904 | Small Signal NPN Transistor, TO-92 KK254 Molex header 2.54 mm spacing 2 pin Molex header 2.54 mm spacing"/>
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