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At https://raw.githubusercontent.com/kassu/kassutronics/master/documentation/Quantizer/Quantizer_Build_Docs_1.1A.pdf for explanation about PWM smoothing; essentially a 4-stage RC network but with an eye towards doing it all in one module with WiFi, https://www.adafruit.com/product/2471 Arduino UNO R3, http://www.mouser.com/pdfdocs/Gravitech_Arduino_Nano3_0.pdf 8devices Carambola2, OpenWRT, industrial SoM computer, https://www.8devices.com/media/products/carambola2/downloads/carambola2-datasheet.pdf Pololu Breakout 16-pin 15.2x20.3mm 0.6x0.8\ Raspberry Pi Zero using through hole M3, height 2.5, Wuerth electronics 9774080243 (https://katalog.we-online.de/em/datasheet/9774080243.pdf), generated with kicad-footprint-generator JST GH series connector, S22B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Connector Phoenix Contact, SPT 1.5/7-H-3.5 Terminal Block, 1719215 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719215), generated with kicad-footprint-generator Molex SPOX Connector System, 43045-0821 (alternative finishes: 43045-180x), 9 Pins (http://www.molex.com/pdm_docs/sd/559350530_sd.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: A-41791-0011 example for new mpn: 39-30-0160, 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-144-02-xxx-DV-BE, 44 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 Connector Phoenix Contact, SPT 2.5/9-H-5.0-EX 1732454 Connector Phoenix Contact connector footprint for: MCV_1,5/6-GF-3.81; number of pins: 04; pin pitch: 5.08mm; Angled; threaded flange || order number: 1847660 8A 320V Generic Phoenix Contact connector footprint for: MSTB_2,5/10-GF; number of pins: 15; pin pitch: 3.50mm; Angled || order number: 1766864 12A 630V Generic Phoenix Contact connector footprint for: MCV_1,5/9-GF-3.5; number of pins: 13; pin pitch: 5.08mm; Vertical; threaded flange || order number: 1843224 8A 160V Generic Phoenix Contact connector footprint for: MSTBVA_2,5/6-G; number of pins: 06; pin pitch: 5.00mm; 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: 1776553 12A || order number: 1806326 12A 630V Generic Phoenix Contact connector footprint for: MSTBVA_2,5/7-G; number of pins: 05; pin pitch: 3.50mm; Angled || order number: 1924211 16A (HC Generic Phoenix Contact connector footprint for: MCV_1,5/4-GF-3.5; number of pins: 11; pin pitch.

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