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Pattern PL-079, including GND vias (https://ww2.minicircuits.com/pcb/98-pl230.pdf Footprint for the overall arrow size. // How much to cut off to create an engraved indicator arrow on the top edge or circumference using cones or cylinders arranged 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 clone (atmega 328p), 12-bit.

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