How to make an RC boat speed display?
- Philippe

- Sep 16
- 1 min read
Updated: Sep 21
What components are needed?

Speed display – boat & wind
To track your navigations live, all you need is an all-in-one ESP32 controller : touchscreen, Wi-Fi, SD card reader, and built-in battery. We chose the M5Stack Core2 v1.1 ($47) which combines all of this in a single compact package.

To store the training data (boat GPS track, wind speed), you also need a 32 GB microSD card, formatted in FAT32.

The above SD Card are working very well.
🚤 During your workouts :
The boat's GPS sends its position in real time
The buoy's anemometer transmits wind speed
Data is displayed live on the Core2 screen
📊 What you win :
Instantly see your speed and heading relative to the wind
Optimize your live settings to improve your VMG
Record your sessions to SD card and replay them for a detailed debrief
Compare your performance from one session to another and progress faster
It's much more than just a display: it's a digital tool for progressing in RC sailing.



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