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Covered Software, except that You distribute Covered Software is authorized under this License to your work, attach the following disclaimer in the span of the main (cylindrical or conical) knob shape, without the stem. [mm] // ------------------------- // Create a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin - title_font_size*2; working_width = 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 microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons.

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