5 replies to this topic

[Johan]

Hello people, my name is Johan. I'm a newb with Netduino. I have just started to work with Netduino. And I'm excited to see that I can do some nice projects with ease of use. I'm working now on a project that will monitor fluids on a ship. On that ship are three tanks. One with waste water, one with clean water and one Diesel tank. Also I want to monitor the battery just in case there's no wind. Because it's Sailing ship :-) For the tanks I use a pressure sensor normally used in the automotive industry which can measure op to 3,5Bar. And for the battery I think I'm going to use a voltage divider and use the charge curve from the battery supplier. All that I want to display in the cabin and keep track of the tanks and warn me if it gets to high or to low. Later on I will post the code and schematics, when I find the time :-) If you have questions or remarks, feel free to post them. I'm looking forward to it.

[Stefan]

When it's done, sail to Terheijden Harbor and show me Sounds like a fun project.

[JonnyBoats]

Tell us more about your sailboat,what kind, how big, do you liveon it etc.?

I have a LeComte NorthEast 38 sloop.

Many boats have expensive batteries,and monitoring them properly can make them last much longer and save a ton of money. Properly maintained (as in a data center) deep cycle batteries can last 10 years. Many boaters consider themselves lucky to get 3-4 years before replacing them.

If you want to do a really good job of battery monitoring consider using Kelvin 4-wire leads (http://en.wikipedia....erminal_sensing )

[Johan]

Tell us more about your sailboat,what kind, how big, do you liveon it etc.?

I have a LeComte NorthEast 38 sloop.

Many boats have expensive batteries,and monitoring them properly can make them last much longer and save a ton of money. Properly maintained (as in a data center) deep cycle batteries can last 10 years. Many boaters consider themselves lucky to get 3-4 years before replacing them.

If you want to do a really good job of battery monitoring consider using Kelvin 4-wire leads (http://en.wikipedia....erminal_sensing )

Actualy the boat isn't mine, it's my brothers :-)
I will get the details, when I know the right terms.

And thanks for the 4-wire leads way of meassuring.
I was thinking of a simple voltage divider.
But this is better.

[Johan]

When it's done, sail to Terheijden Harbor and show me
Sounds like a fun project.

It looked as an easy enough project to get back into programming.
And getting the hang of a Netduino.

I will make some reports on how I do it and place it on the forum.

And yes it's fun

[Johan]

The boat is a Wesley Vulcan. And what I'm going to monitor is: 1x Waste water tank 1x Fresh water tank 1x Diesel tank 1x Batteries For the tanks I'm using three 3,5Bar pressure sensors. Normally used in the exhaust of a Daimler (Mercedes) car. I'll fix those in the bottom of the tank and measure the fluid pressure. They need a 5V for supply power and it delivers a percentage of that as indication of pressure. About 20% of the supply (1V) is the normal pressure of 100kPa. But because the Netduino can handle max 3.3V I made a voltage divider. This is a variable resistor of 100k Ohms, so it can't get higher then 3.3V.