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Dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in a narrow space between them right_panel_width = width_mm - hole_dist_side, hole_dist_top); echo("Putting a hole for mounting screw: ISO 1481-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1924457 16A (HC Generic Phoenix Contact connector footprint for: MSTB_2,5/12-GF-5,08; number of pins: 04; pin pitch: 7.62mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C or ISO 7049-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1843279 8A 160V Generic Phoenix Contact SPT 2.5/5-V-5.0-EX Terminal Block, 1719354 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719354), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-149-02-xxx-DV-LC, 49 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 Mounting Hardware, inside through hole 4.5mm, height 5, Wuerth electronics 9775041360 (https://katalog.we-online.com/em/datasheet/9775041360.pdf), generated with kicad-footprint-generator JST XH series connector, B30B-PUDSS (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-133-02-xxx-DV-BE, 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 StandardBox.py) (https://product.tdk.com/info/en/catalog/datasheets/inductor_commercial_power_slf10165_en.pdf Inductor, TDK, SLF6025, 6.0mmx6.0mm (Script generated with kicad-footprint-generator Molex LSHM 0.50 mm Razor Beam High-Speed Hermaphroditic Terminal/Socket Strip, LSHM-150-xx.x-x-DV-S, 50 Pins (http://www.molex.com/pdm_docs/sd/555600207_sd.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, BM14B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py VQFN, 20 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0108.PDF U20E-1), generated with kicad-footprint-generator connector JST XH series connector, 14110613001xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13001XXX_100228421DRW046C.pdf), generated with kicad-footprint-generator JST XH series connector, S11B-ZESK-2D (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator.

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