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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 LED backlight TFT graphical display LED backlight 240x128 http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip240-7e.pdf LCD graphical display LED backlight 160x104 RS-232 I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip320-8e.pdf LCD display 320x340 RS-232 I2C or SPI LCD 4x10 character 3.3V VDD I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip160-7e.pdf LCD-graphical display with LED backlight TFT graphical display LED backlight 160x104 RS-232 I2C or SPI 3 Line 12 character wide alpha numeric LCD LCD-graphical display with LED backlight 128x64 RS-232 I2C or SPI LCD 4x10 character 3.3V VDD I2C or SPI LCD graphical display 480x272 16-bit colour with LED backlight 240x128 http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip240-7e.pdf LCD graphical display 480x272 16-bit colour with LED backlight 240x128 http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip240-7e.pdf LCD graphical display LED backlight 128x64 RS-232 I2C or SPI 3 Line 12 character wide alpha numeric LCD LCD-graphical display with LED and photoresistor 3 Lead Plastic Package OnSemi CASE 100AQ for QRE1113, see https://www.onsemi.com/pub/Collateral/QRE1113-D.PDF OnSemi CASE 100AQ for QRE1113, see https://www.onsemi.com/pub/Collateral/QRE1113-D.PDF OnSemi CASE 100CY, light-direction upwards, see http://www.onsemi.com/pub/Collateral/QRE1113-D.PDF PhotoDiode, plastic SMD DIL, 4.5x4mm, area: 2.2x2.2mm, https://dammedia.osram.info/media/resource/hires/osram-dam-5989350/BP%20104%20FAS_EN.pdf PhotoDiode, plastic SMD DIL PhotoDiode, plastic SMD DIL, 4.5x4mm, area: 2.65x2.65mm, https://dammedia.osram.info/media/resource/hires/osram-dam-5467146/SFH%202440_EN.pdf DFN, 6 Pin (https://www.jedec.org/sites/default/files/docs/Mo-178c.PDF variant BA), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-105-02-xxx-DV-A, 5 Pins per row (http://www.molex.com/pdm_docs/sd/431602102_sd.pdf), generated with kicad-footprint-generator JST SUR series connector, DF52-15S-0.8H (https://www.hirose.com/product/en/products/DF52/DF52-3S-0.8H%2821%29/), generated with kicad-footprint-generator connector Molex Micro-Fit_3.0 horizontal connector Molex Sabre Power Connector, 43160-0106, With thermal vias in pads, 6 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 ipc_gullwing_generator.py 44-Lead Plastic Thin Quad Flatpack (PH) - 16x16x1 mm Body, 2.00 mm Footprint.

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