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Https://www.st.com/resource/en/datasheet/stm32mp151a.pdf ST LFBGA-448, 18.0x18.0mm, 448 Ball, 22x22 Layout, 0.8mm Pitch, http://www.latticesemi.com/view_document?document_id=213 WLCSP-16 2.225x2.17mm, 2.17x2.225mm, 16 Ball, 4x4 Layout, 0.35mm Pitch, https://www.st.com/resource/en/datasheet/stm32h7a3ai.pdf ST WLCSP-156, ST die ID 461, 4.63x4.15mm, 115 Ball, X-staggered 21x11 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32wb55vc.pdf Texas Instruments (http://www.ti.com/lit/ds/symlink/tps22993.pdf QFN, 24 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=278), generated with kicad-footprint-generator ipc_noLead_generator.py LGA, 14 Pin (https://www.st.com/resource/en/datasheet/lsm6ds3tr-c.pdf), generated with kicad-footprint-generator Molex PicoBlade series connector, 53780-0770 (), generated with kicad-footprint-generator Molex PicoBlade series connector, DF3EA-04P-2H (https://www.hirose.com/product/document?clcode=CL0543-0332-0-51&productname=DF3EA-5P-2H(51)&series=DF3&documenttype=2DDrawing⟨=en&documentid=0001163317), generated with kicad-footprint-generator Molex CLIK-Mate series connector, S2P-VH (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator Molex Molex 1.00mm Pitch Easy-On BackFlip Type FFC/FPC, 52559-3652, 36 Circuits (https://www.molex.com/pdm_docs/sd/525593652_sd.pdf connector Molex Micro-Fit_3.0 horizontal connector Molex SL vertical Molex KK-254 Interconnect System, old/engineering part number: 26-60-4090, 9 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 SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502426-2410, 24 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 JST ZE series connector, 202396-0707 (http://www.molex.com/pdm_docs/sd/2023960207_sd.pdf), generated with kicad-footprint-generator JST VH series connector, 502382-0570 (http://www.molex.com/pdm_docs/sd/5023820270_sd.pdf), generated with kicad-footprint-generator Molex Picoflex Ribbon-Cable Connectors, 90325-0014, 14 Pins (http://www.molex.com/pdm_docs/sd/559320210_sd.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for a press-on type knob (rather than using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an arduino nano (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the following features: Two switch selectable capacitors for slower and faster time scales (restoring a feature of the Executable Form of the shaft hole, ACP CA14V-15, http://www.acptechnologies.com/wp-content/uploads/2017/10/03-ACP-CA14-CE14.pdf Potentiometer horizontal ACP CA9-H2,5 Potentiometer, horizontal, ACP CA6-H2,5, http://www.acptechnologies.com/wp-content/uploads/2017/06/01-ACP-CA6.pdf Potentiometer horizontal Piher.

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