Homebuilt ROVs Forum

Did you really have to jam it in your butt crack?

Buenas tardes. La respuesta es SI, debes unir las masas o GND de todo el circuito. Un saludo. Good afternoon. The answer is YES, you must join the masses or GND of the entire circuit. Greetings. No, this is incorrect. With RS485 you do not need to connect the grounds between the two modules, especi...

UTP has a max distance of 100m with Cat 5 cable. Practical with interference it is a bit lower around 80m is the max I managed in a network setup with good cable, but interference of lamp transformators. Presumably you are talking about Ethernet, which has data rates of 10Mb, 100Mb or 1Gb, dependin...

A good idea. Not one I've ever seen used in the industry, but I can't think why not. I'd be interested to see how well this works.

Asesorplaza1 and Bennachie, thank you, that is very helpful :) I'll have to do some reading on Termination resistors! I'd be very surprised if you needed termination resistors with a couple of hundred feet of Cat5. If you did, the quickest and dirtiest fix is to attach a 1k potentiometers across ea...

The link posted by asesorplaza1 explains it well. For 200 feet, just use twisted pair cable (ideally shielded twisted pair). You shouldn't need termination resistors over that length. So long as your baud rate isn't ridiculously high, you should be ok. RS485 is not troubled by voltage drop/attenuati...

PM sent. Check your inbox. If you would be willing, I would like to see what you have on the control of the six motors. I am also very new to Coding and am I the process of trying to learn Arduino and Rapberry Pi. Thanking you in advance. Dan Hi Dan, Sorry, I'm not working on my ROV at the moment b...

Hi Bob,

I've actually posted my latest code and schematics elsewhere on these forums.
If I get a chance I'll post links below.

Cheers,

Richard

My thread on the subject
viewtopic.php?f=3&t=1935

I use these props, they are available in left and right handed versions. https://www.cornwallmodelboats.co.uk/acatalog/Ro-Marin-Model-Boat-Fittings-Dynamic-Propeller-3-Blade-60mm-LH-M4-R1464.html#SID=1570 I chose those because they are designed for kort nozzles, and my thrusters have a cowling, rath...