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Photos ### Photos ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf * [How to use](Docs/use.md 96f746fa2d Final tweaks, version submitted to JLCPCB on 20240124 63579cf959 Add notes about wiring SW15 cross-board UI: 11 potentiometers 11 SPDT switches: // 10 steps based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, based on EPCOS app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.silabs.com/documents/public/data-sheets/Si7020-A20.pdf), generated with kicad-footprint-generator Hirose DF12C SMD, DF12C3.0-32DS-0.5V, 32 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 ipc_noLead_generator.py QFN, 68 Pin (JEDEC MO-194 Var AF https://www.jedec.org/document_search?search_api_views_fulltext=MO-194), generated with kicad-footprint-generator JST GH series connector, 14110313010xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13010XXX_100228421DRW063C.pdf), generated with kicad-footprint-generator Connector Phoenix Contact SPT 2.5/7-H-5.0 1991024 Connector Phoenix Contact, SPT 2.5/7-H-5.0 1991024 Connector Phoenix Contact, SPT 5/1-H-7.5 1719189 Connector Phoenix Contact connector footprint for: GMSTBV_2,5/11-GF-7,62; number of pins: 03; pin pitch: 5.08mm; Vertical || order number: 1836228 8A 320V Generic Phoenix Contact connector footprint for: GMSTBVA_2,5/2-G; number of pins: 05; pin pitch: 7.62mm; Vertical; threaded flange || order number: 1755532 12A || order number: 1757569 12A || order number: 1924020 16A (HC Generic Phoenix Contact SPT 2.5/3-H-5.0-EX 1732399 Connector Phoenix Contact, SPT 5/9-V-7.5-ZB 1719383 Connector Phoenix Contact, SPT 2.5/6-H-5.0-EX Terminal Block, 1719192 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719192), generated with kicad-footprint-generator JST GH series connector, S8B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator.

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