Category: Electronics

Electronics Security
10/09/2026

Homemade Wireless MOB (Man Over Board) Device

What happens if you fall overboard while sailing alone? In this episode, we put several traditional Man Overboard (MOB) safety techniques to the test and build a simple DIY wireless MOB safety system for around €25 that can automatically stop the boat’s engine if you fall into the water. We test different methods for preventing a man overboard situation, look at ways to improve your […]

DIY Electric systems Electronics
25/07/2026

Rev counter for our engine

I am surprised and concerned at how expensive some original parts for our boat engines can be.My Yanmar 2GM20F engine did not come with a rev counter, a tachometer, and when I started looking for the original part, especially the engine sensor, I almost fell on my ass: 200 euros for the engine sensor and at least 100 more for the clock !! A search […]

Electronics
18/07/2026

Ruggedized tablet to navigate (by the sea)

This time we are going to talk about using a tablet as an economical plotter on our boats. We have prepared a video for you in which: we bought and tested the cheapest rugged, waterproof (aquatic) tablet on the market: The OUKITEL RT1. We compare it with other tablet options that we can also use on our boats as a plotter, we put it to […]

Electric systems Electronics
04/07/2026

The best low cost battery monitors

Today we are going to get into the issue of batteries, one of the most expensive goods on our boats and the easiest to break down or run out, causing us the consequent annoyances. In the video we can see the basics of the monitors, the simplest and cheapest that only control the battery voltage, those that already allow us to know at what rate […]

Electronics
20/06/2026

WiFi power failure detection alarm

In this post and in the associated video, we are going to see how we can take advantage of the benefits of the WiFi flood detector that we have seen in other episodes, to build an alarm that alerts us to the mobile when the power fails or the connection cable is disconnected to port of our ships. A very simple solution that we tell […]

DIY Electronics Toys
30/05/2026

Must-have tools and other nautical gifts

With Christmas just around the corner, and knowing how difficult it is to get the gifts right, we have decided to make a list of ideas to give to any fan of Boating, DIY or the sea in general … Let it not be said that the wise men fall short of ideas. In the video you can see my favorites, the ones that I […]