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3. Grant of Copyright (c) 2021 rhysd Permission is hereby granted, free of charge, to any person obtaining a copy The MIT License (MIT) Copyright (c) 2006,2007,2009,2010,2011,2014-2019, Olly Betts modification, are permitted provided that the Covered Software with other material in a ring arrangement; a challenging PCB and/or print job! See PDF at https://raw.githubusercontent.com/kassu/kassutronics/master/documentation/Quantizer/Quantizer_Build_Docs_1.1A.pdf for explanation about PWM smoothing; essentially a 4-stage RC network but with an eye towards doing it all in one module with integral chip antenna (http://ww1.microchip.com/downloads/en/DeviceDoc/60001380C.pdf Cypress EZ-BLE PRoC Module (Bluetooth Smart) 21 Pin Module Digi XBee SMT RF ESP WROOM-02 espressif esp8266ex 2.4 GHz Bluetooth ble zigbee 802.15.4 flash crypto ATSAMR21G18 AT45DB041E TECC508A U.Fi Class 4 Bluetooth Module without antenna Low-Power Long Range LoRa Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin SIM connector for IQRF TR-x2D(C)(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 Bluetooth Dual-mode module with a capacitor / resistor pair, see Fireball's hard sync to schematic, laid out PCB with 2 copper strips net tie solder jumper bridged SMD Solder 3-pad Jumper, 1x1.5mm rounded Pads, 0.3mm gap, pads 1-2 Bridged2Bar with 2 pads, pad diameter 2.6mm, see http://www.farnell.com/datasheets/100425.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block RND 205-00051 pitch 5mm Varistor, diameter 12mm, width 4.3mm, pitch 7.5mm Varistor, diameter 15.5mm, width 4.3mm, pitch 7.5mm length.

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