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Shape, without the two keybeds in storage; decipher key matrix, work out either MC or dumb resistor array to output correct volts for each stage? * TBD, needs testing; but if LEDs are possible, this should be possible, too * Manual trigger * See manual step (featuring debouncing!), sequencer cascading, basic glide (for portamento), attack decay sustain release envelope generator synth module. Layout and panel are Kosmo format. * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md ## GitHub repository https://github.com/holmesrichards/precadsr Submodules Latest commits for file Fireball/Fireball.kicad_dru | 102 Fireball/Fireball_panel.kicad_prl | 77 Synth Mages Power Word Stun.kicad_pcb 23180 lines From 215821e48128fa87907c6added840580ad4c06ac Mon Sep 17 00:00:00 2001 Subject: [PATCH] PCB initial layout, no traces PCB initial layout, no traces "solder_mask_clearance": 0.0, PCB initial layout, no traces Fireball/Fireball.kicad_prl | 8 pin SIM connector for 2.4mm PCB's with 30 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 60 contacts (polarized Highspeed card edge card connector socket for 1.57mm PCBs, vertical, alignment pins, weld tabs (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf conn samtec card-edge high-speed Highspeed card edge connector for 1.6mm PCB's with 60 contacts (not polarized Highspeed card edge connector for IQRF TR-x2D(C)(T) modules, http://iqrf.org/weben/downloads.php?id=104 8 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 20 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 6 pin 0.5mm Pitch http://www.st.com/resource/en/datasheet/ecmf02-2amx6.pdf UQFN DFN 0.5 ST 20-Lead Plastic Thin Quad Flatpack (PT) - 10x10x1 mm Body, 2.00 mm [TQFP] (see Microchip Packaging Specification 00000049BS.pdf DFN, 6 Pin (https://www.silabs.com/documents/public/data-sheets/si512-13.pdf), generated with kicad-footprint-generator Hirose DF11 through hole, DF11-18DP-2DSA, 9 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0694-9-81&productname=DF12C(3.0)-50DS-0.5V(81)&series=DF12&documenttype=2DDrawing⟨=en&documentid=0000994748), generated with kicad-footprint-generator JST GH series connector, B10B-XH-AM, with boss (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py PQFP, 208 Pin (http://www.microsemi.com/index.php?option=com_docman&task=doc_download&gid=131095), generated with kicad-footprint-generator JST ZE series connector, S22B-PUDSS-1 (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Molex KK-254 Interconnect System, old/engineering part number: 26-60-4120, 12 Pins (http://www.molex.com/pdm_docs/sd/559320530_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-137-02-xxx-DV-LC, 37 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Molex Sabre Power Connector, 43160-2105, With thermal vias in pads, 3 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator Harwin Gecko Connector, 6 pins, http://www.lodestonepacific.com/CatKpdf/VTM950-6.pdf Inductor, Radial series, Radial, pin pitch=2.50mm, , length*width=4.6*3.8mm^2, Capacitor, http://www.wima.de/DE/WIMA_MKS_02.pdf C Rect series Radial pin.

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