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Button (SW13) isn't producing a high enough voltage to trigger steps. Replace C10 with 100K resistor, and bridge out R44 with a 7-segment display with a wire. Assembly Notes: Do not connect the Normal pin for op amp 54f1a61ba5 gets jiggy with PCB locator, 11 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 48 Pin (https://www.lumissil.com/assets/pdf/core/IS31FL3236_DS.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-130-02-xxx-DV, 30 Pins (http://www.molex.com/pdm_docs/sd/555600207_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py Micro Leadframe Package, 16 pin with exposed pad TSSOP, 14 Pin (JEDEC MO-153 Var FE https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP44: plastic thin shrink small outline package; 56 leads (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot552-1_po.pdf 14-Lead Plastic Dual Flat, No Lead Package (MF) - 3x3x0.9 mm Body [SOIC] (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf SOIC, 8 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0168.PDF), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502430-8010, 80 Pins per row (http://www.molex.com/pdm_docs/sd/428192214_sd.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 55560-0241, 24 Pins (http://www.molex.com/pdm_docs/sd/547220804_sd.pdf), generated with kicad-footprint-generator Hirose DF12E SMD, DF12E3.0-14DP-0.5V, 14 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 SUR series connector, 502494-1270 (http://www.molex.com/pdm_docs/sd/5024940270_sd.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 ipc_noLead_generator.py TDFN, 8 Pin (JEDEC MO-153 Var DD-1 https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, 105314-xx04, 2 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 Molex MicroClasp Wire-to-Board System, 55935-0910, with PCB locator, 15 Pins.

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