What electronic components are needed for a speed display?

The GPS on board a boat allows you to track your position, speed and heading in real time during navigation.

To take full advantage of this, it is important to use a speed display , in order to view live data and then replay your sessions to analyze your performance.

The speed display is very simple in terms of its electronic components. It consists of a single component, an M5Stack Core 2, which already contains a 500 mAh battery. You simply need to add a micro SD card to record data from the GPS, anemometer, and buoys.

As an option, for use over a long period, more than 3 hours, it is possible to add a base containing a 1500 mAh battery, for a full day of navigation and measurements.

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Components for a Speed Display

	M5Stack Core2 ESP32 IoT Development Kit V1.1	$46.90
	Lexar 32GB Micro SD Card, Micro SD Memory Card + Adapter, MicroSDXC TF Card up to 100MB/s, A1, U1, C10, V10, Full HD and 4K UHD	€17

Optional for extended battery life

Battery Module 13.2 (1500mAh)

$10.50

🚤 During your training:

• The boat's GPS sends its position in real time

• The buoy anemometer transmits the wind speed

• The buoys transmit the direction of the wind

• Data is displayed live on the Core2 screen

📊 What you win:

• Immediately visualise your speed and your course in relation to the wind

• Optimise your live settings to improve your VMG

• Record your sessions on 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 to progress in RC sailing.