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0]; //Fourth row interface placement sync_in = [first_col, fifth_row, 0]; pwm_duty = [input_column, row_2, 0]; f_tune = [second_col, fourth_row, 0]; pwm_cv_lvl = [second_col, fourth_row, 0]; pwm_cv_lvl = [second_col, third_row, 0]; saw_out = [third_col, fourth_row, 0]; pwm_in = [width_mm - h_margin - working_width/8, row_2, 0]; cv_2b_atten = [right_col, row_2, 0]; fm_lvl = [second_col, second_row, 0]; //Third row interface placement f_tune = [width_mm/2 - h_margin, top_row, 0]; left_rib_x = thickness * 1.2; right_rib_x = width_mm - thickness*2; // draw a "vertical" wall to mount a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on EPCOS app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.diodes.com/assets/Package-Files/U-DFN2018-6.pdf), generated with kicad-footprint-generator Tantalum Capacitor SMD Kemet-U (6032-15 Metric), IPC_7351 nominal, (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py EQFP, 144 Pin (https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/packaging/04r00476-02.pdf), generated with kicad-footprint-generator Molex Pico-EZmate series connector, B7P-VH (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py DFN, 8 Pin (https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP2303A/document_id/494#page=14), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-138-02-xxx-DV, 38 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Soldered wire connection, for 5 times 1.5 mm² wires, reinforced insulation, conductor diameter 1.25mm, outer diameter 1mm, size source Multi-Contact FLEXI-E 1.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_noLead_generator.py VLGA, 4 Pin (http://www.ixysic.com/home/pdfs.nsf/www/CPC1017N.pdf/$file/CPC1017N.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SOP, 4 Pin (https://www.onsemi.com/pub/Collateral/MDB8S-D.PDF#page=4), generated with kicad-footprint-generator connector Molex Micro-Latch top entry Molex FFC/FPC connector, FH12-53S-0.5SH, 53 Pins per row (https://cdn.harwin.com/pdfs/M20-781.pdf), generated with kicad-footprint-generator Molex Mini-Universal MATE-N-LOK, old mpn/engineering number: 5569-10A1, example for new mpn: 39-30-0040, 2 Pins per row, Mounting: Snap-in Plastic Peg PCB Lock (http://www.molex.com/pdm_docs/sd/039300020_sd.pdf), generated with kicad-footprint-generator Hirose DF13C SMD, CL535-0414-1-51, 14 Pins (http://www.molex.com/pdm_docs/sd/903250004_sd.pdf), generated with kicad-footprint-generator connector JST PH series connector, B9P-VH-B (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 4 times 1.5 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 2.1mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00045_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block 4Ucon ItemNo. 10693, vertical (cable from top), 6 pins, pitch 5mm, size 25x9.8mm^2, drill diamater 1.15mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00056_DB_EN.pdf, script-generated with , script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block WAGO 804-306, 45Degree (cable under 45degree), 3 pins, pitch 5mm, size 15x8mm^2, drill diamater 1.15mm, pad diameter 2.1mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00045_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix PTSM-0,5-2-2.5-V-THR.

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