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Connector 144 STLink AI accelerated MCU with optional wifi, https://dl.sipeed.com/MAIX/HDK/Sipeed-M1&M1W/Specifications AI Kendryte K210 RISC-V Texas Instruments (see http://www.ti.com/lit/ds/symlink/lm5118.pdf HSOIC, 8 Pin (http://www.ti.com/lit/ds/symlink/tps82130.pdf#page=19), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-1530, 15 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 Single banana socket, footprint - 2 momentary pushbutton switches 1 rotary switch with LED, generic D Push button switch with 12 positions D 3 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch Vertical 2-215079-0 9-215079-20 TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 16 pin with exposed pad (http://cds.linear.com/docs/en/datasheet/34301fa.pdf SSOP 0.65 exposed pad Micrel MLF, 8 Pin (https://www.onsemi.com/pub/Collateral/NB3N551-D.PDF#page=7), generated with kicad-footprint-generator Mounting Hardware, inside through hole 2.7mm, height 6, Wuerth electronics 9775076360 (https://katalog.we-online.com/em/datasheet/9775076360.pdf), generated with kicad-footprint-generator JST EH series connector, S03B-ZESK-2D (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSOP-I, 32 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/00002164B.pdf#page=68), generated with kicad-footprint-generator Resistor SMD 2512 (6332 Metric), 2.6mm thick, Vishay WKS2512, Terminal length (T) 2.21mm, 1 to set output voltages. (10) One potentiometer for internal clock rate. Switches: Momentary-normal-off pushbutton to manually reset. - One multi-pole rotary switch - 9.5mm, +5mm extra space available - mini toggle pushbuttons: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector straight vertical THT female pitch 2.77x2.84mm pin-PCB-offset 9.9mm mounting-holes-distance 25mm mounting-hole-offset 25mm 9-pin D-Sub connector horizontal angled 90deg THT male pitch 2.41x1.98mm pin-PCB-offset 8.35mm mounting-holes-distance 25mm mounting-hole-offset 25mm 9-pin D-Sub connector horizontal angled 90deg THT female pitch 2.77x2.84mm pin-PCB-offset 9.4mm 25-pin D-Sub connector, solder-cups edge-mounted, female, x-pin-pitch 2.77mm, distance of mounting holes 47.1mm, distance of mounting holes 25mm, distance of mounting holes 63.5mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector edge mount solder cup female x-pin-pitch 2.77mm mounting holes 33.3mm, distance of mounting holes.

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