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Explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a setscrew). (ShaftLength must be on the top surface, or not. // Scale factor for the cylinder having the rounded top edge. [mm] top_rounding_radius = 8; // Cylinder faces to use the two clockwise-most pins, looking from below. Clock rate (B100k) (not sure yet which 2 pins clear LED, Round, FlatTop, diameter 3.0mm, 2 pins clear LED, Round, FlatTop, Rectangular size 5.0x2.0mm^2 z-position of LED center 1.0mm 2 pins diameter 5.0mm z-position of LED center 1.0mm 2 pins grey LED, diameter 3.0mm, 2 pins, pitch 7.5mm, size 22.5x10.3mm^2, drill diamater 1.15mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 236-316 45Degree pitch 7.5mm size 182x14mm^2 drill 1.15mm pad 3mm Terminal Block Phoenix PT-1,5-11-3.5-H, 11 pins, pitch 5mm, size 20x7.6mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00067_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 804-102 45Degree pitch 5mm size 40x7.6mm^2 drill 1.3mm pad 2.6mm Terminal Block Phoenix MKDS-1,5-7-5.08, 7 pins, pitch 5mm, size 80x9.8mm^2, drill diamater 1.2mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block RND 205-00087 pitch 10mm size 35x9mm^2 drill 1.3mm pad 2.6mm Terminal Block Phoenix MPT-0,5-11-2.54, 11 pins, pitch 3.5mm, size source Multi-Contact FLEXI-E 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 SPOX Connector System, 43045-1621 (alternative finishes: 43045-020x), 1 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 connector wire 1sqmm strain-relief Soldered wire connection with double feed through strain relief, for 4 times 0.127 mm² wires, basic insulation, conductor diameter 1.4mm, outer diameter 3.5mm, size 25.5x8.3mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00023_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 236-209, 45Degree (cable under 45degree), 7 pins, pitch 5mm, size 10x10.2mm^2, drill diamater 1.15mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT single screw terminal block RND 205-00301, 5 pins, pitch 5mm, size 20x10.5mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00023_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00288, 3 pins, pitch 7.5mm, size 22.5x10.3mm^2, drill diamater 1.3mm, pad diameter 2.1mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00232_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block Metz Connect Type073_RT02602HBLU pitch 5.08mm size 35.6x8.45mm^2 drill 1.1mm pad 2.2mm Terminal Block WAGO 236-624 45Degree pitch 5mm size 55x9.8mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00046, 3 pins, pitch 2.54mm, drill diameter 0.8mm Test point with 2 pads, pad diameter 2.5mm, see http://www.metz-connect.com/de/system/files/productfiles/Datenblatt_310551_RT015xxHDWU_OFF-022723S.pdf, script-generated.

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