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On https://www.schmitzbits.de/ms20.html which is good practice, but ho-dang what a mess a3d4f2b82e romps with traces, vias, and net links Add four more switches/buttons, move LED drivers onto PCB Add four more switches/buttons, move LED drivers onto PCB 496e3e3344 Correcting changed filename in .prl 54f1a61ba5 gets jiggy with PCB locator, 15 Pins per row (https://www.hirose.com/product/en/products/DF13/DF13C-10P-1.25V%2851%29/), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-111-02-xxx-DV-BE, 11 Pins (http://www.molex.com/pdm_docs/sd/559320210_sd.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: 26-60-5080, 8 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 Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-127-02-xxx-DV-BE-LC, 27 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 Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-135-02-xxx-DV-LC, 35 Pins per row (http://www.molex.com/pdm_docs/sd/431600105_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-133-02-xxx-DV-BE-LC, 33 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_gullwing_generator.py TSSOP, 30 Pin (JEDEC MO-153 Var DE https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_noLead_generator.py DFN8 2x2, 0.5P (https://www.onsemi.com/pub/Collateral/511AT.PDF On Semiconductor, SIP-38, 9x7mm, (https://www.onsemi.com/pub/Collateral/AX-SIP-SFEU-D.PDF#page=19 8-Lead Plastic WSON, 4x3mm Body, 0.5mm Pitch, https://ww1.microchip.com/downloads/en/DeviceDoc/16B_WLCSP_CS_C04-06036c.pdf WLCSP-20, 4x5 raster, 1.934x2.434mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f401vc.pdf WLCSP-49, 7x7 raster, 2.965x2.965mm package, pitch 0.4mm; see section 7.8 of http://www.st.com/resource/en/datasheet/DM00387108.pdf Texas Instruments, DSBGA, 3.33x3.488x0.625mm, 49 ball 7x7 area grid, YBG pad definition, 1.468x0.705mm, 8 Ball, 2x4 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32g483me.pdf ST WLCSP-81, ST die ID 494, 3.3x3.38mm, 49 Ball, 7x7 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32u575og.pdf#page=306 ST WLCSP-100, off-center ball grid, ST die ID 483, 3.73x4.15mm, 115 Ball, Y-staggered 11x21 Layout, 0.35mm Pitch, https://www.st.com/resource/en/datasheet/stm32h747xi.pdf DFN, 6 Pin (https://www.renesas.com/us/en/document/psc/package-drawing-hodfn-6pin-l615x16?language=en&r=568376 Miniature Crystal Clock Oscillator EuroQuartz XO32 series, http://cdn-reichelt.de/documents/datenblatt/B400/XO32.pdf, 3.2x2.5mm^2 package SMD Crystal EuroQuartz MT series http://cdn-reichelt.de/documents/datenblatt/B400/MT.pdf, hand-soldering.

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