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Photos Build notes GitHub repository * [https://github.com/holmesrichards/precadsr](https://github.com/holmesrichards/precadsr) * [https://gitlab.com/rsholmes/precadsr](https://gitlab.com/rsholmes/precadsr This repo uses submodules aoKicad and Kosmo\_panel. To clone: schematic start, and some example modules main 5a4e89eea6 Add position for resistor between the hub and circumference. * @todo Provide an option to send CV; could also be done with a 7-segment display with LED backlight 128x64 RS-232 I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip320-8e.pdf LCD display 320x340 RS-232 I2C or SPI LCD graphical display 480x272 16-bit colour with led backlight http://www.lcd-module.com/fileadmin/eng/pdf/grafik/ediptft32-ae.pdf TFT-graphic display 320x240 16 bit colour with led backlight http://www.lcd-module.com/fileadmin/eng/pdf/grafik/ediptft32-ae.pdf TFT-graphic display 320x240 16 bit colour TFT-graphical display 800x480 16-bit colours and touch display STN/FSTN LCD 128x64 dot https://www.digchip.com/datasheets/parts/datasheet/1121/AG-12864E-pdf.php AG12864E Graphics Display 192x64 2 Digit 7 segemnt red/green LED Single digit 7 segment blue LED 2 digit 7 segment green LED with right dot One digit 7 segment high efficiency red One digit LED 7 segment green, https://docs.broadcom.com/docs/AV02-2553EN -1 overflow 7 segment green LED with right dot One digit 7 segment orange common anode Single digit 7 segemnt blue LED, right hand decimal, https://docs.broadcom.com/docs/AV02-1589EN 2 Digit 7 segment LED display Dubble digit super bright orange LED display Double digit seven segment super bright orange LED display Dubble digit green 7 segment LCD 3 1/5 digit reflective arrow bat + 7 + 8); // pot + led + switch? Col_right = width_mm - hole_dist_side - thickness; // additives - labels, etc // one more 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 LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W single output POE DCDC-Converter, 60W POE, Silvertel, pitch 2.54mm, size 28.4x6.2mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00012_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00081, 5 pins, pitch 3.5mm, size 10.5x7.6mm^2, drill diamater 1.1mm, pad diameter 3mm, see http://www.produktinfo.conrad.com/datenblaetter/550000-574999/556441-da-01-de-LEITERPLATTENKL__PTSM_0_5__8_2_5_H_THR.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block 4Ucon ItemNo. 10694, vertical (cable from top), 6 pins, pitch 5.08mm, size 30.5x10.6mm^2, drill diamater 1.3mm, pad diameter 2.5mm, hole diameter 1.5mm THT pad as test Point, square 2.5mm side length, hole diameter 1.4mm, outer diameter 2mm, outer diameter 1mm, size source Multi-Contact FLEXI-xV 0.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Mounting Hardware, inside through hole PLCC, 28 pins, surface mount PLCC, 44.

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