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Euclidean Circles v2 by vpme.de
https://www.muffwiggler.com/forum/viewtopic.php?t=151440
– BOM and build guide, v2.0
Notes:
(0) please ignore R20, C2, C3, C8, C9, IC8
(1) C31, R35, R36, ICSTM32F031F6 and 74AHCT1G125 already populated on PCB
(2) supplied with PCB set
(3) for approx. 10V trigger outputs, install IC6b instead of IC6 and D50, R29 - R34.
(4) alternatives for D49: 1N5818, 1N5819 or any other Schottky diode with 1A rating that fits that SMT footprint, also LL5817-19 in
MELF package
(5) Alternative sources for the encoders and knobs:
UK:
http://www.hobbytronics.co.uk/rotary-encoder-rgb
and
http://www.hobbytronics.co.uk/clear-knob
DE:
http://www.exp-tech.de/rotary-encoder-illuminated-rgb
and
http://www.exp-tech.de/clear-plastic-knob
(6) when not installing the SixSwitches extension, put solder jumpers across J123 and J456 or install 2x3 male headers and
short them with jumpers, see build guide
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