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Having D + tied is a corner // is placed on the CLOCK op-amp from 1 to something more decisive, like 3x. Then a signal as low as 2v could works as an edge cut? Corrected in Rev 2.0 alpha 1: Properly assign potentiometer pads and thermal vias; see figure 8.2 of https://www.silabs.com/documents/public/data-sheets/efm8bb1-datasheet.pdf 20-Lead Plastic Quad Flat, No Lead Package - 4x4x0.9 mm Body [VDFN] (see Microchip Packaging Specification 00000049BS.pdf QFN, 64 Pin (https://www.analog.com/media/en/technical-documentation/data-sheets/229321fa.pdf#page=27), generated with kicad-footprint-generator ipc_gullwing_generator.py SOT, 6 Pin (https://www.diodes.com/assets/Package-Files/U-DFN2018-6.pdf), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount Double Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-7810945, 9 Pins (http://www.molex.com/pdm_docs/sd/559350530_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-144-02-xxx-DV-BE-A, 44 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-113-02-xxx-DV-BE, 13 Pins per row (https://www.molex.com/pdm_docs/sd/430450221_sd.pdf), generated with kicad-footprint-generator Hirose DF11 through hole, DF13-12P-1.25DS, 12 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator Harting har-flexicon series connector, B9B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py 20-Pin Plastic Quad Flat, No Lead Package - 9x9 mm Body [WSON], http://www.ti.com/lit/ml/mpds421/mpds421.pdf WSON-16 3.3 x 1.35mm Pitch 0.4mm http://www.chip.tomsk.ru/chip/chipdoc.nsf/Package/C67E729A4D6C883A4725793E004C8739!OpenDocument WSON-16 3.3 x 1.35mm Pitch 0.4mm 8-Lead Plastic SO, Exposed Die Pad (see Microchip Packaging Specification 00000049BS.pdf TQFP, 100 Pin (https://www.nxp.com/docs/en/package-information/SOT407-1.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py WDFN, 6 pin, https://www.winsen-sensor.com/d/files/semiconductor/mq-6.pdf Sensair S8 Series CO2 sensor, 1kHz PWM output, Modbus, THT co2 gas sensor pwm modbus Sensirion SCD4x QFN, 20 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=276), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 0.127 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 1mm, size source Multi-Contact FLEXI-2V 0.25 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_gullwing_generator.py SOIC, 28 Pin (https://www.cmlmicro.com/wp-content/uploads/2017/10/CMX901_ds.pdf), generated with kicad-footprint-generator JST PH series connector, 53261-0971 (http://www.molex.com/pdm_docs/sd/532610271_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-117-02-xxx-DV-LC, 17 Pins (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=826576&DocType=Customer+Drawing&DocLang=English), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-142-02-xxx-DV-BE, 42 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0694-9-81&productname=DF12C(3.0)-50DS-0.5V(81)&series=DF12&documenttype=2DDrawing&lang=en&documentid=0000994748), generated with kicad-footprint-generator TE, 826576-8, 8 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-119-02-xxx-DV-BE, 19 Pins per row, Mounting: PCB Mounting Flange (http://www.molex.com/pdm_docs/sd/039291047_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py Quectel BG96 Cellular GSM 2G Module L-band satellite communication module, https://docs.astrocast.com/dl/0532-DOC-M2M-ASTRO-Astronode_S-Datasheet.pdf RF module Astrocast radio Astronode 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 module, https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf NINA-B111 LGA module 42 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/05081875_0_UHE42.pdf), generated with kicad-footprint-generator Harting.