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1x Arduino Mega
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2x CMPS11 Tilt-Compensated Compass Modules (https://www.robot-electronics.co.uk/htm/cmps11doc.htm)
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1x CAN-BUS Shield (http://www.watterott.com/de/Arduino-CANdiy-Shield)
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1x NMEA0183 Wind-Vane (http://www.lcjcapteurs.com/product/cv7-c-is-the-high-speed-ultrasonic-wind-sensor/?lang=en)
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1x SD-Card Breakout (http://www.watterott.com/de/mSD-Breakout)
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1x MAX3232 RS232 to TTL Converter
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12V->5V DC-DC adaptor
WINDVANE
|------------------------------12VDC---------------|
| |
MAX3232 |
| |
| |
CMPS11_1------------| ----------------------------|------------| |
on Mast | | | |
| | |--------------NMEA2000-Bus------------
| ARDUINO | CAN-BUS | |
| | SHIELD | |
| | | |
CMPS11_2----------- |-----------------------------|------------| |
in Hull | | |
| | |
SDCARD ------12V5V DCDC --------------------------
Install the great "NMEA2000 library for Arduino" with its dependencies as described here: https://github.com/ttlappalainen/NMEA2000