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Pitch 0.8 mm Highspeed card edge connector for 1.6mm PCB's with 30 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 60 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 40 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 30 contacts (not polarized Highspeed card edge connector for PCB's with 40 contacts (not polarized Highspeed card edge card connector socket for 1.57mm PCBs, vertical, alignment pins, weld tabs, board locks (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf 0.8 mm Highspeed card edge connector for 2.4mm PCB's with 30 contacts (not polarized Highspeed card edge connector for IQRF TR-x2DA(T) modules, http://iqrf.org/weben/downloads.php?id=104 Bluetooth v4.2 + NFC module Modtronix 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/RAK4200/Hardware-Specification/RAK4200_Module_Specifications_V1.4.pdf Class 2 Bluetooth Module with on-board antenna Class 2 Bluetooth Module with on-board components c6741b48f0 More random files c6741b48f0ef8a6e69ecbca1a47bc4f4b481e2a3 Notes from MK's PCB livestream - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf * [How to use](Docs/use.md 96f746fa2d Final tweaks.

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