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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 R2, http://www.mouser.com/pdfdocs/Gravitech_Arduino_Nano3_0.pdf 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 M2, height 5, Wuerth electronics 9774025243 (https://katalog.we-online.de/em/datasheet/9774025243.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SOP, 8 Pin (https://www.qorvo.com/products/d/da001879), generated with kicad-footprint-generator ipc_gullwing_generator.py SOIC, 28 Pin (JEDEC MO-153 Var CC https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_noLead_generator.py UQFN, 20 Pin (JEDEC MO-153 Var FD https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 36 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/(UHE36)%20QFN%2005-08-1876%20Rev%20%C3%98.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TQFP, 48 Pin (https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf#page=38), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 28 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=338), generated with kicad-footprint-generator Mounting Hardware, external M3, height 3.1, Wuerth electronics 9774040243 (https://katalog.we-online.de/em/datasheet/9774040243.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 56 Pin (JEDEC MO-153 Var DE https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502430-0820, 8 Pins (http://www.molex.com/pdm_docs/sd/559320210_sd.pdf), generated with kicad-footprint-generator JST PH series connector, B9B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Hirose DF11 through hole, DF13-15P-1.25DS, 15 Pins per row (http://www.molex.com/pdm_docs/sd/431600105_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 16 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=266), generated with kicad-footprint-generator SIM Card, Push-Push, https://www.jae.com/direct/topics/topics_file_download/topics_id=68892&ext_no=06&index=0&_lang=en&v=202003111511468456809 SIM Card with Detect Switch (https://www.molex.com/pdm_docs/sd/1040310811_sd.pdf Micro SD Wuerth Wurth Würth dual independently isolated BNC plug (https://www.winconn.com/wp-content/uploads/364A2595.pdf Dual BNC Horizontal Isolated Subminiature Coaxial Switch 1.35mm High, DC to DC Converters dc-dc recom buck sip-12 pitch 2.54mm length 9.5mm diameter 5.2mm Diode, DO-201AD series, Axial, Vertical, pin pitch=10.16mm, , length*diameter=5.2*2.7mm^2, , http://www.diodes.com/_files/packages/DO-41%20(Plastic).pdf Diode DO-41_SOD81 series Axial Horizontal pin pitch 15mm length 5.1mm diameter 3.1mm C, Axial series, Axial, Vertical, pin pitch=5.08mm, , length*diameter=24*7.1mm^2, Vishay, IM-10-28, http://www.vishay.com/docs/34035/im10.pdf Inductor Axial series Axial Horizontal pin pitch 75mm length 67mm diameter 23.0mm Electrolytic Capacitor CP Radial series Radial pin pitch 5.08mm length 3.2mm diameter 2.6mm C, Axial series, Axial, Vertical, pin pitch=3.81mm, , length*diameter=5.2*2.7mm^2, , http://www.diodes.com/_files/packages/DO-41%20(Plastic).pdf Diode DO-41_SOD81 series Axial Horizontal pin pitch 7.50mm length 10mm width 4mm Capacitor C, Rect series, Radial, pin pitch=7.50mm, , length*width=9*5.7mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 27.50mm length 29mm width 9.6mm Capacitor C, Radial series, Radial, pin pitch=48.26mm, , diameter=40mm L_Toroid Horizontal series Radial pin pitch 3.80mm diameter 10mm Electrolytic Capacitor C Rect series Radial pin pitch 7.50mm diameter.

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