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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 lots of analog drum voices; based heavily on Moritz Klein's work, 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 module Single 2.4 GHz Wi-Fi Bluetooth external antenna espressif 20*15.4mm 2.4 GHz Wi-Fi Bluetooth external antenna espressif 20*15.4mm 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 Bluetooth external antenna espressif 20*15.4mm 2.4 GHz Wi-Fi and Bluetooth module Single 2.4 GHz Wi-Fi Bluetooth external antenna espressif 15.4*15.4mm ESP32-S2-WROVER(-I) 2.4 GHz Wi-Fi Bluetooth external antenna espressif 20*15.4mm 2.4 GHz Wi-Fi and Bluetooth module, https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf NINA-B111 LGA module 42 Pin (http://www.ti.com/lit/ds/symlink/ts3l501e.pdf#page=23), generated with kicad-footprint-generator Connector Phoenix Contact connector footprint for: MC_1,5/8-G-3.5; number of pins: 09; pin pitch: 3.81mm; Angled; threaded flange || order number: 1829206 12A 630V Generic Phoenix Contact connector footprint for: MSTBVA_2,5/3-G; number of pins: 04; pin pitch: 5.08mm; Angled || order number: 1843855 8A 160V Generic Phoenix Contact connector footprint for: MC_1,5/5-GF-5.08; number of pins: 12; pin pitch: 3.81mm; Angled || order number: 1847466 8A 320V Generic Phoenix Contact connector footprint for: MSTBA_2,5/9-G-5,08; number of pins: 10; pin pitch: 7.50mm; Vertical || order number: 1843347 8A 160V Generic Phoenix Contact connector footprint for: MSTBA_2,5/15-G-5,08; number of pins: 10; pin pitch: 7.62mm; Angled || order number: 1836257 8A.

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