NMEA 0183 · AIS · DIY marine electronics
DIY NMEA WiFi Bridge & AIS Touch Display
Free build guides and firmware for practical marine electronics projects. All firmware is free to download and flash. The hardware is low cost and all parts are available from any online supplier — no proprietary boards, no subscription fees, nothing sold here.
Projects
What's available
NMEA 0183 to WiFi Bridge
A beginner DIY build — just five wires, no coding. Connects your existing NMEA 0183 instruments to your boat's WiFi so you can see GPS, AIS, depth, wind, and speed on Navionics or any chart app. Built on a readily available ESP32 development board — parts cost a few pounds.
View projectNMEATouch20
A touchscreen AIS and NMEA display for boats that already have NMEA data on WiFi. Provides enhanced AIS information including clearance ahead or astern of each vessel, plus SOG, COG, and race start tools. If you don't yet have NMEA over WiFi, see the NMEA WiFi Bridge project first.
View projectNetwork Analyser
A touchscreen WiFi network scanner and NMEA diagnostics tool built on a readily available touchscreen module. See every device on your boat network, check open ports and connectivity, and diagnose NMEA data flow problems from a dedicated display.
View projectMore projects coming
Additional marine electronics projects are in development. Check back soon.
Details coming soonMost projects are free
If a project helped make your sailing more enjoyable or safer, consider supporting the work once you have it deployed. There's no expectation of payment for experimenting.