- https://publicdomainreview.org/collections/hamonshu-a-japanese-book-of-wave-and-ripple-designs-1903/ – design of waves and ripples
- https://boatlamps.co.uk/collections/recessed-led-down-lighters/products/recessed-led-light-fixture-chrome-type-un-switched?variant=21259135879
- https://www.parts4engines.com/yanmar-3gm30-stainless-exhaust-outlet/
- https://randomnerdtutorials.com/esp8266-adc-reading-analog-values-with-nodemcu/
- https://github.com/ttlappalainen/NMEA2000/blob/master/src/N2kMessages.cpp
- Arduino NMEA 2000
- http://i-marineapps.blogspot.com/2014/05/boat-instrument-app.html – Now Imray
- http://www.plaisance-pratique.com/IMG/pdf/NMEA0183-2.pdf
- NMEA Revealed – GPSd
- Digital waste water monitor
- ESP32 details
- ESP32.net
- VS Code integration for ESP32 development
- 1/8″ OD nylon tubing
- Right-angle PL259/SO239 adapter
- NMEA 2000 drop cable