Homebuilt ROVs Forum

does anyone know where i can get a underwater pressure sensor that i can use to calculate the depth of my rov?

If you're not going very deep you may be able to find something at an auto-parts store for a reasonable price. I haven't got around to looking yet, so I don't know for sure.

-Seawolf

http://www.hoperf.com/upload/sensor/HSF1000-TQ.pdf

I purchased 2 sensors, 2.5$ per sensor and 7$ shipping to Croatia. I use arduino to read analog values.

Is these suitable for sensing water pressure?

Are you planning to connect a hose to the sensor to be able to sense the water pressure?

Of course, they are waterproof. I will put it in the hose and seal wire connectors and lower part of sensor.

how did this workout. im intrested in implmenting this in my auv design. thanks

So far so good. I implemented it into arduino, works fine but needs differential amplifier. I can send amp schematics. Now i need to calibrate it. What sensor do u have?

What model of arduino board did you use?

Do you require one in the ROV and at the surface?

Jim

I use only Duemillanove in ROV, and send data over rs485 to my laptop (Java application).

HAS ANYONE THOUGHT OF USEING THOSE CHEAP FISH FINDERS THAT YOU CAN GET ON E-BAY.There wired but I think they could be extended to whats required. they have a small screen that gives you a picture of whats below amd depth below the hull. You might even be able to point them forward to stop you running into rocks Etc. you comments would be wellcome.