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Duck a VCA level using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in 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 (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the section where the stem height. [mm] stem_transition_height = 5; thickness=2; */ module panel(h) { width_mm = 70.8; // 14HP×5.08mm = 71.12; ES for 14HP is 70.8 c_tune = [width_mm/2 - h_margin, top_row, 0]; left_rib_x = hole_dist_side + thickness; v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*2 + thickness; right_rib_x = width_mm - h_margin; input_column = h_margin; col_right = width_mm - h_margin; working_height = height - v_margin - title_font_size*1.5; saw_out = [h_margin + working_width/4, row_1, 0]; fm_in = [h_margin+working_width/8, row_4, 0]; pwm_cv_lvl = [second_col, fourth_row, 0]; pwm_cv_lvl = [second_col, first_row, 0]; //Second row interface placement triangle_out = [third_col, third_row, 0]; fm_lvl = [h_margin+working_width/8, row_4, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_2, 0]; square_out = [width_mm-h_margin, row_1, 0]; pwm_in = [first_col, fourth_row, 0]; //Fifth row interface placement saw_out = [h_margin + working_width/4, row_1, 0]; triangle_out = [third_col, fifth_row, 0]; square_out = [output_column, row_2, 0]; triangle_out = [third_col, third_row, 0]; //Fourth row interface placement triangle_out = [output_column, row_2, 0]; fm_in = [first_col, first_row, 0]; //Second row interface placement triangle_out = [output_column, row_2, 0]; audio_in_2 = [left_col, row_3, 0]; c_tune = [second_col, third_row, 0]; //Fourth row interface placement pwm_in = [first_col, fourth_row, 0]; //Fifth row interface placement square_out = [width_mm-h_margin, row_1, 0]; audio_out_2 = [right_col, row_1.

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