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Http://www.st.com/resource/en/datasheet/stm32f429ng.pdf WLCSP-143, 11x13 raster, 4.521x5.547mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f301r8.pdf WLCSP-49, 7x7 raster, 3.277x3.109mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/DM00366448.pdf WLCSP-168, 12x14 raster, 4.891x5.692mm package, pitch 0.8mm TFBGA-121, 11x11 raster, 10x10mm package, pitch 0.4mm pad, based on the left sub-panel top_row = height - 25; // build up seven rows; middle one unused row_2 = row_1 + vertical_space/7; cv_in_1a = [left_col, row_1, 0]; square_out = [width_mm-h_margin, row_1, 0]; pwm_in = [input_column - h_margin/2, row_1, 0]; fm_pot = [input_column + h_margin/2, bottom_row, 0]; fm_in = [first_col, fifth_row, 0]; //left_rib_x = thickness * 2; right_rib_x = width_mm - thickness; // additives - labels, etc // one more vertical 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 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 gate. Main synth_tools/Schematics/SynthMages.pretty/6.3mm_NPTH_MAXJLCPCB.kicad_mod 24 lines 978eb1d01f Fix for when invisible bread has no bread From 6a9c45505ac6d396b29028a4373b6ff337eac9d1 Mon Sep 17 00:00:00 2001 Subject: [PATCH] romps with traces, vias, and net links 06eccf7d9c added the once through idea with commentary by Latest commits for branch pcb_finalization re-re-remove the mysterious extra trace Add notes about UX component wiring 55ee65a5e9 Checkpoint after re-centering sliders, before removing redundant LED resistors checkpoint after roughing out middle PCB ebf8c2dd87 Move LED resistors light tweaks light tweaks From cd915e24c94d463c67b0b011c09a1ed6f99bb0bf Mon Sep 17 00:00:00 2001 Subject: [PATCH] updates led holes to PCB edge 15.979999999999999mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, solder-cups edge-mounted, female, x-pin-pitch 2.77mm, distance of mounting holes 63.5mm, distance of mounting holes 47.1mm, distance of mounting holes to PCB edge 8.2mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.29x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 25-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.77x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 44-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x2.54mm pin-PCB-offset 9.4mm 9-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, distance of mounting holes to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm.

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