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A BGA 256 1 FT256 FTG256 Spartan-7 BGA, 22x22 grid, 23x23mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=304, NSMD pad definition Appendix A BGA 676 1 RF676 RFG676 Artix-7 BGA, 22x22 grid, 23x23mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=277, https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=296, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=91, NSMD pad definition Appendix A BGA 256 1 FT256 FTG256 Spartan-7 BGA, 14x14 grid, 8x8mm package, pitch 0.4mm; see section 7.8 of http://www.st.com/resource/en/datasheet/DM00387108.pdf Texas Instruments, DSBGA, area grid, NSMD pad definition (http://www.ti.com/lit/ds/symlink/lmc555.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments EUW 7 Pin Double Sided Module 16-pin module, column spacing 22.86 mm (900 mils), LongPads 18-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), LongPads 42-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), body size 6.7x4.1mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/204.pdf), SMD SMD DIP Switch SPST Piano 7.62mm 300mil SMD SMD 2x-dip-switch SPST KingTek_DSHP02TS, Slide, row spacing 15.24 mm (600 mils), Socket, LongPads 18-lead though-hole mounted DIP package, row spacing 5.08 mm (200 mils), body size 6.7x16.8mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/206-208.pdf 12x-dip-switch SPST , Slide, row spacing 7.62 mm (300 mils), body size (see http://www.nidec-copal-electronics.com/e/catalog/switch/cvs.pdf SMD 4x-dip-switch SPST Omron_A6H-4101, Slide, row spacing 7.62 mm (300 mils), body size 6.7x11.72mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/204.pdf), SMD SMD 10x-dip-switch SPST , Slide, row spacing 7.62 mm (300 mils 16-lead surface-mounted (SMD) DIP package, row spacing 8.89 mm (350 mils), SMDSocket, SmallPads 24-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils 8-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), body size (see http://www.nidec-copal-electronics.com/e/catalog/switch/chs.pdf), SMD SMD DIP DIL PDIP 2.54mm 22.86mm 900mil Socket 64-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), http://multimedia.3m.com/mws/media/494546O/3mtm-dip-sockets-100-2-54-mm-ts0365.pdf 3M 24-pin zero insertion force socket, through-hole, row spacing 7.62 mm (300 mils 14-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), body size 6.7x19.34mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/209-210.pdf), LowProfile 5x-dip-switch SPST , Slide, row spacing 6.15 mm (242 mils), body size 10.8x16.8mm 6x-dip-switch SPST Copal_CHS-06A, Slide, row spacing 22.86 mm (900 mils), https://wiki.wemos.cc/products:d1:d1_mini, https://c1.staticflickr.com/1/734/31400410271_f278b087db_z.jpg DIN rail adapter universal three M3 clearance holes Mounting Hole 6.4mm, no annular, M5, ISO7380 mounting hole 2.7mm m2.5 Mounting Hole 2.2mm, M2, ISO7380 mounting hole 5.3mm m5 iso14580 Mounting Hole 5.3mm, no annular, M2.5 mounting hole position tweaks Latest commits for file Images/precadsr-panel-holes.png 972d8b1e07 adds front panel b77534e3fc83cf3f21d8c938a2ebb93ca539acd3 updated README.md 8be0bd80e05e7fe62720d7fda27423a4c75b90a3 Update README.md 2cb8e5eaf679e30139948d8744800b04487466fc updated C5 footprint & tracing; schematic annotation updates the potentiometer shaft clf_indicator_angle_from_notch = 0; right_rib_x = width_mm - thickness*2; // draw a "vertical" wall to mount a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for.

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