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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 Wi-Fi and Bluetooth combo chip, external antenna, https://www.espressif.com/sites/default/files/documentation/esp32-s3-mini-1_mini-1u_datasheet_en.pdf 2.4 GHz Wi-Fi and Bluetooth combo chip with U.FL connector, https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf D52M ANT SoC Module https://www.thisisant.com/assets/resources/D00001687_D52_Module_Datasheet.v.2.3_(Garmin).pdf RF SoC Radio ANT Bluetooth BLE D52 nRF52 Garmin Canada Dynastream Nordic Low Power Long Range Transceiver Module SMD-16 (https://www.hoperf.com/data/upload/portal/20181127/5bfcbea20e9ef.pdf LoRa Low Power Long Range Transceiver Module rf module lora lorawan Multiprotocol radio SoC module https://www.raytac.com/download/index.php?index_id=43 wireless 2.4 GHz Wi-Fi and Bluetooth module, https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf 2.4 GHz Wi-Fi and Bluetooth combo chip with U.FL connector, https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf D52M ANT SoC Module https://www.thisisant.com/assets/resources/D00001687_D52_Module_Datasheet.v.2.3_(Garmin).pdf RF SoC Radio ANT Bluetooth BLE D52 nRF52 Garmin Canada Dynastream Nordic Low Power Long Range Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket | | | R9 | 1 | 1 | SW_SPDT | SPDT miniature toggle switch | | | D6, D7 | 2 | 47k | Resistor | | S3 | 1 Hardware/lib/aoKicad | 1 | SW_3PDT_x3 | Switch, triple pole double throw, separate symbols K switch normally-open pushbutton push-button LCD D MEC 5G single pole normally-open illuminated tactile switch SPST LED OFF-ON D Single Pole Single Throw (SPST) switch, small symbol D Switch, three position, single pole triple throw, 3 position switch, SP3T K switch normally-open pushbutton push-button LCD illuminated right angle USB type A Plug, Horizontal, http://katalog.we-online.de/em/datasheet/692112030100.pdf usb A plug horizontal Micro USB Typ-B (http://www.molex.com/pdm_docs/sd/1051330031_sd.pdf Micro USB https://gct.co/files/drawings/usb3076.pdf Micro-USB SMD Typ-B Vertical Molex Vertical Micro USB Typ-B (http://www.molex.com/pdm_docs/sd/1051330001_sd.pdf Micro-USB SMD Typ-B Vertical Molex Vertical Micro USB B vertical female connector straight vertical THT female pitch 2.29x1.98mm pin-PCB-offset 9.4mm 37-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.29x1.98mm, distance of mounting holes 33.3mm, distance of mounting holes to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector horizontal angled 90deg THT male pitch 2.77x2.84mm pin-PCB-offset 7.699999999999999mm mounting-holes-distance 63.5mm mounting-hole-offset 63.5mm 62-pin D-Sub connector, solder-cups edge-mounted, male, x-pin-pitch 2.77mm, distance of mounting holes 63.5mm, distance of mounting holes distance 33.3mm 15-pin D-Sub connector horizontal angled 90deg THT female pitch 2.29x1.98mm pin-PCB-offset 9.4mm 15-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, pin-PCB-offset 14.56mm, distance of mounting holes 47.1mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector, straight/vertical, THT-mount, male, pitch 2.77x2.84mm, pin-PCB-offset 4.9399999999999995mm, distance of mounting holes distance 63.5mm 44-pin D-Sub connector horizontal angled.

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