This is a very basic but functional Battery Management System for Lithium batteries, built on the Arduino architecture. It can be used as a stand alone BMS but also as a redundant watchdog BMS to overrule the primary BMS if it fails to detect or act upon a cell voltage excursion event.
Objective was not to build a fully fledged BMS, but to build a BMS with as few external parts and libraries as possible.
A very handy 10-30V timer for appliances on your boat. The timer can be used to safe-guard appliances like remote electric valves of propane tanks, salt water galley pumps, etc. There are various applications possible. Either build it yourself or buy it from us!
This Boiler Optimizer can do everything you want it to do! Automatically use the excess energy of your solar panels after the batteries are fully charged, anti-freeze control, legionella prevention, low temperature heating for showering for just 1/3 of the energy, even controlling a "warm water solar panel" that can consist of nothing more than just a hose on deck with a small pump.
This is a small project that you can either build yourself, or buy completely assembled.
We have created a computer controlled prop shaft brake out of affordable materials. In this article more about the why and how. For do-it-yourselfers we have added the schematic diagram and computer code.
