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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 LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on a medium customarily used for hall sensors, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot337-1_po.pdf SSOP16: plastic shrink small outline package; 28 leads; body width 6.1 mm; lead pitch 0.635; (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot369-1_po.pdf SSOP, 16 Pin (http://www.st.com/resource/en/datasheet/lis331hh.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: A-41791-0007 example for new part number: AE-6410-02A example for new mpn: 39-30-0200, 10 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 Soldered wire connection with feed through strain relief, for 2 times 1 mm² wire, basic insulation, conductor diameter 1.7mm, outer diameter 1.5mm, hole diameter 1.3mm, wire diameter 1.0mm wire loop as test Point, diameter 3.0mm z-position of LED center 1.0mm, 2 pins, diameter 3.0mm z-position of LED center 6.0mm 2 pins diameter 1.8mm size 1.8x2.4mm^2 z-position of LED center 2.0mm, 2 pins LED, diameter 5.0mm, 2 pins, pitch 3.5mm, size 17.5x7.6mm^2, drill diamater 1.1mm, pad diameter 2.4mm, outer diameter 1.5mm, size source Multi-Contact FLEXI-xV 0.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_gullwing_generator.py SO, 16 Pin (https://ww1.microchip.com/downloads/en/DeviceDoc/16L_VQFN-WFS_3x3mm_4MX_C04-00508a.pdf), generated with kicad-footprint-generator Molex PicoBlade Connector System, 5268-11A, 11 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py LQFP, 48 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-ssop/05081887_A_G48.pdf), generated with kicad-footprint-generator Molex Micro-Fit 3.0 Connector System, 5268-02A, 2 Pins per row (http://www.molex.com/pdm_docs/sd/431602102_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 32 Pin (https://www.st.com/resource/en/datasheet/stm32g071k8.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py HVQFN, 32 Pin (https://www.nxp.com/docs/en/package-information/SOT617-1.pdf), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-0530, 5 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-117-02-xxx-DV-LC, 17 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator JST XH series connector, B7B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, DF52-14S-0.8H (https://www.hirose.com/product/en/products/DF52/DF52-3S-0.8H%2821%29/), generated with kicad-footprint-generator JST XH series connector, BM05B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator Molex LSHM 0.50 mm Razor Beam High-Speed Hermaphroditic Terminal/Socket Strip, LSHM-140-xx.x-x-DV-N, 40 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog&lang=en&documentid=D31688_en), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-124-02-xx-DV-TE, 24 Pins per row (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82181_SOFTSHELL_HIGH_DENSITY&DocType=CS&DocLang=EN), generated with kicad-footprint-generator.

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