11/18/2023 0 Comments Analog rv battery monitor![]() ![]() For remote monitoring, battery voltage tells you 99% of what you need to know remotely: whether a cell has shorted, whether the batteries are close to fully charged, whether the charger is working. The ESP8266 was my chosen platform.īesides inputs to monitor things like bilge pump, motion detector, smoke detector, etc, I used the ESP8266’s A/D converter to monitor batteries. So a monitoring system that periodically connected to wifi and transmitted status would be an economical way to remotely monitor your boat. My “insight” was that most boats spend 90+% of the time moored/docked/stored somewhere with wifi (marinas, clubs, cottage, home). This hits pretty close to home with me because we have a little sailboat, I’m a nerd, and about 4 years ago I started working on a boat monitoring system which I hoped would have commercial potential. Posted in Arduino Hacks, Transportation Hacks Tagged arduino nano, battery monitor, marine, TFT display, voltage Post navigation If you’re looking for a way to keep an eye on the voltages aboard your land ship, this battery monitor disguised as an automotive relay is still the high-water mark in our book. It will be interesting to follow along with this one and see how it eventually gets integrated in to the boat’s electrical system. We suspect there’s some kind of watertight enclosure in this board’s future, but it looks like things are still in the early phases. Knowing that a perfboard wouldn’t last long on the high seas, even routed his own PCB for this project. Beyond the aforementioned nRF24 module, the current version of the monitor features an Arduino Nano clone, a 128×160 SPI TFT display, and a handful of passives. The bill of materials is pretty short on this one. He actually hasn’t implemented that feature yet, but some way of getting the data into the computer so it can be graphed over time seems like a natural application. With the addition of a nRF24 module, the battery monitor will also be able to wireless transmit the status of the batteries to…something. Any system that has multiple batteries could benefit from a central monitor that can show you voltages at a glance, but is actually going one better than that. He wanted some way to check the voltage on all of the the batteries in the system simultaneously and display the information in a central location, and not liking anything on the commercial market he decided to build it himself.Įven for those who don’t hear the call of the sea, this is a potentially useful project. While those of us stuck sailing desks might not be able to truly appreciate the problem, was tired of finding that some of the batteries aboard his boat had gone flat.
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