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Http://www.st.com/resource/en/datasheet/stm32f207vg.pdf WLCSP-66, 8x9 raster, 3.767x4.229mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l152ze.pdf WLCSP-143, 11x13 raster, 4.539x5.849mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the four plastic clips sliders: 3mm above panel, tight but possible mini toggle: 2.5mm above panel, tight but possible micro toggle: probably too tight; could work with printed spacers mini toggle: 2.5mm above panel, ample thunkicons: probably too tight; could work with printed spacers and existing lead lengths alpha pots: barely enough to attach knob 01bb4964a6 Add CV (and knob) controlled glide to schematic Add pulldown resistors for reset debounce cap; formatting col_left = h_margin; working_height = height - 25; // build up seven rows; middle one unused row_1 = bottom_row + v_margin + 12; row_2 = working_increment*1 + row_1; row_3 = row_2 + vertical_space/7; row_5 = row_4 + vertical_space/7; row_6 = row_5 + vertical_space/7; row_4 = working_increment*3 + row_1; row_3 = working_increment*2 .

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