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Wireless SX1276 LoRa Module (http://modtronix.com/img/prod/imod/inair9/inair_dimensions.gif Modtronix LoRa inAir inAir9 SX1276 RF 915MHz 868MHz Wireless RAK811 LPWAN Module https://downloads.rakwireless.com/LoRa/RAK811/Hardware_Specification/RAK811_LoRa_Module_Datasheet_V1.4.pdf RAK4200 LPWAN Module https://downloads.rakwireless.com/LoRa/RAK4200/Hardware-Specification/RAK4200_Module_Specifications_V1.4.pdf Class 2 Bluetooth Module with on-board components Add correct footprints to fireball Minor layout tweaks Based on designs from: Skull & Circuits (https://www.skullandcircuits.com/vca-1-2/ Moritz Klein (and derivatives Fix rail clearance issues, make all power traces large Added input resistor for sync; placed everything on PCB sandwich, making some final-ish decisions about connecting to front panel and Pin 1, vertical PCB mount, https://www.neutrik.com/en/product/nc3fbv1 B Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, with chrome ferrule and straight PCB pins, https://www.neutrik.com/en/product/nmj6hfd3 M Series, 6.35mm (1/4in) mono jack, switched, gold plated contacts, fully threaded nose, https://www.neutrik.com/en/product/nsj12hf-1 Stacking Jacks, Stereo dual jack, half threaded nose, https://www.neutrik.com/en/product/nrj6hf-au Slim Jacks, 6.35mm (1/4in) stereo jack, vertical PCB mount, self tapping screw holes (A-screw), vertical PCB mount, replaces NL8MD-V, https://www.neutrik.com/en/product/nl8mdxx-v 4 contacts, 3.5mm audio cui horizontal jack stereo horizontal TRS 3.5mm, horizontal, through-hole, https://downloads.lumberg.com/datenblaetter/en/1503_07.pdf TRS audio jack stereo TRS 3.5mm, horizontal, through-hole, with switch, horizontal shaft, https://www.bourns.com/docs/product-datasheets/pec12r.pdf Sensortech MiCS MEMS sensor Infineon, IP57, XENSIV, LGA-5, https://www.infineon.com/dgdl/Infineon-IM73A135-DataSheet-v01_00-EN.pdf?fileId=8ac78c8c7f2a768a017fadec36b84500 MEMS Microphone LGA Dust Water TDK InvenSense Knowles MEMS I2S Microphone: https://invensense.tdk.com/products/ics-43434/ microphone MEMS I2S ICS-43434 TDK InvenSense MEMS I2S SPH0645LM4H Knowles Sensirion, SHT40, SHT41, SHT45, DFN, 4 Pin (https://toshiba.semicon-storage.com/info/docget.jsp?did=10047&prodName=TLP3123), generated with kicad-footprint-generator connector JST SUR series connector, 502494-1570 (http://www.molex.com/pdm_docs/sd/5024940270_sd.pdf), generated with kicad-footprint-generator JST ACH series connector, B10B-PUDSS (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for a clock on the cylindrical edge of the rail + a safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*5; width_mm = hp_mm(width.

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