The boat in question is a 12-meter motorboat, an Azimut 39. Originally, the boat had three battery groups: a generator, a starter battery, and service batteries. The generator and starter batteries were individual batteries, while the service battery group consisted of two 190Ah lead-acid batteries. 

Many yacht owners have thought about how nice it would be to have air conditioning at anchor, quietly, without running the generator. In this testing phase, we only operated the air conditioning in the two cabins from the battery, not the salon air conditioning. 

The yacht in question is a 46-foot motorboat by Cruiser Yachts. The owner has been dissatisfied with the boat's power supply for years. When shore power was unavailable, the power would run out after 3-4 days despite solar charging and 1-1.5 hours of daily generator charging, yacht requires 10-12 hours of battery charging. Before delving into the details, it's important to clarify a fact and dispel a myth: many people confuse LiFePO4 batteries with Li-ion batteries, which have a rather poor reputation in the automotive industry.

The new bridge control panel with new functions: preset "home" - fully raised, "away" - away from the ship, "marina" - port positions. The next step will be the pier following function, when we use an ultrasonic distance meter to keep the ship's bridge at a preset distance (e.g. 30 cm), avoiding that the ship's bridge collides with the ground during waves or low tide. In addition, you always have to get off and on the ship's bridge the same way.

Also, temperature, humidity, rain amount, lux, UV index, solar radiation intensity sensor.