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676 1 FB676 FBG676 FBV676 Kintex-7 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=298, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=94, NSMD pad definition, https://www.ti.com/lit/ds/symlink/lmg1020.pdf, https://www.ti.com/lit/ml/mxbg078z/mxbg078z.pdf BGA 6 0.4 YFF0006 Texas Instruments, DSBGA, area grid, YBJ0008 pad definition, 0.95x1.488mm, 6 Ball, 2x3 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32wl54jc.pdf ST UFBGA-121, 6.0x6.0mm, 121 Ball, 11x11 Layout, 0.5mm Pitch, https://ww1.microchip.com/downloads/en/DeviceDoc/16B_WLCSP_CS_C04-06036c.pdf WLCSP-20, 4x5 raster, 1.934x2.434mm package, pitch 0.8mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the articles that helped implement this. Ct = -0.1; // circle translate? Not sure. Circle_radius = knob_radius_top; // just match the top edge radius circle_height = 1; top_margin = (board_height - hole_vdist) / 2 + hole_diameter + hole_margin*2; cutout_width = board_width - (side_margin * 2); hole_horiz = (board_width - hole_hdist) / 2; standoff_radius = hole_radius * 2.5; standoff_height = 3; // tweak on this and/or Hagiwo's quantizer, if going digital ** https://note.com/solder_state/n/nde97a0516f03 and https://www.youtube.com/watch?v=op_DhPr2goc ** arduino nano (other options probably fine), two 74HC595 shift registers (accidentally a pile in my collection) and the.

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