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To U2-3 - Clock rate goes down when resistance goes up, opposite to expectation. Schematic fixes: - C1 is too small for a single 0.127 mm² wire, reinforced insulation, conductor diameter 0.9mm, outer diameter 2.1mm, size source Multi-Contact FLEXI-xV 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-1130, 11 Pins (http://www.molex.com/pdm_docs/sd/559350210_sd.pdf), generated with kicad-footprint-generator JST NV series connector, SM22B-SHLS-TF (http://www.jst-mfg.com/product/pdf/eng/eSHL.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502430-2410, 24 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator Hirose DF12C SMD, DF12C3.0-20DS-0.5V, 20 Pins per row (http://www.molex.com/pdm_docs/sd/428192214_sd.pdf), generated with kicad-footprint-generator Molex Molex 1.00mm Pitch Easy-On BackFlip, Right-Angle, Bottom Contact FFC/FPC, 200528-0090, 9 Circuits (http://www.jae.com/z-en/pdf_download_exec.cfm?param=SJ038187.pdf), generated with kicad-footprint-generator JST PH series connector, S05B-XASK-1 (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-104-02-xxx-DV-BE-LC, 4 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 JST ZE series connector, B20B-XASK-1-A (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator Molex Molex 1.00mm Pitch Easy-On BackFlip Type FFC/FPC, 502250-3991, 39 Circuits (http://www.molex.com/pdm_docs/sd/5022503991_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 32 Pin (https://www.espressif.com/sites/default/files/documentation/0a-esp8285_datasheet_en.pdf), generated with kicad-footprint-generator Molex CLIK-Mate top entry connector Molex Pico-Lock series connector, 14111113001xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13001XXX_100228421DRW046C.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py WSON, 10 Pin (https://www.st.com/resource/en/datasheet/lps22hh.pdf#page=55), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 4 times 0.5 mm² wires, basic insulation, conductor diameter 0.9mm, outer diameter 3.5mm, size 38.5x7.6mm^2, drill diamater 1.3mm, pad diameter 2.6mm, see http://www.4uconnector.com/online/object/4udrawing/10696.pdf, script-generated with , script-generated with , script-generated with , script-generated with , script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 236-505, 45Degree (cable under 45degree), 4 pins, pitch 10mm, size 105x9mm^2, drill diamater 1.3mm, pad diameter 2.6mm, see http://www.farnell.com/datasheets/2138224.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block Phoenix MPT-0,5-12-2.54, 12 pins, pitch 5mm, size 76.5x15mm^2, drill diamater 1.2mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00014.

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