Search found 290 matches

by fryslan76
Jul 23rd, 2020, 3:27 am
Forum: The Mission is Over
Topic: If you have enough lego
Replies: 2
Views: 8821

Re: If you have enough lego

I must say that my lego collection did not include so many motors and remote options as there are now available. I had one motor which was connected by a wire to the battery and that had a switch with three options forward reverse and neutral :)
by fryslan76
Jul 16th, 2020, 8:03 am
Forum: Control Systems and Tethers
Topic: FSK modulation to transmit further
Replies: 5
Views: 6622

Re: FSK modulation to transmit further

Nice trick, did not thought of that one :)
by fryslan76
Jul 15th, 2020, 12:08 pm
Forum: Control Systems and Tethers
Topic: FSK modulation to transmit further
Replies: 5
Views: 6622

Re: FSK modulation to transmit further

Big plus for you is that in water sound travels further. Disadvantage of this system is that you only can do half duplex and think about both the land side and rov side sending information at the same time which generates more noise.
by fryslan76
Jul 13th, 2020, 7:57 am
Forum: Cameras
Topic: Red camera filter.
Replies: 4
Views: 11106

Re: Red camera filter.

Something I learned with camera's and diving, always take something with you that is white. So you can adjust by focusing on that. So If there is a bit of your ROV always visible on the camera paint that in white and your are set :)
by fryslan76
Jul 10th, 2020, 2:59 am
Forum: Cameras
Topic: Camera over cat5
Replies: 3
Views: 4927

Re: Camera over cat5

Not really my cup of tea, but a lot depends on the connections available on your camera. So lets start with which type is the camera?
by fryslan76
Jul 3rd, 2020, 2:44 am
Forum: Your ROV Projects
Topic: U-DRONE Amethyst AUV Platform
Replies: 42
Views: 49786

Re: U-DRONE Amethyst AUV Platform

Beautiful shape, only I think that the watertightness leaves something to desire. I think that you can achieve a better succes with swaping the whole dome if required. Because a flat surface is "easy" to make waterproof.
by fryslan76
Jul 1st, 2020, 3:57 am
Forum: Control Systems and Tethers
Topic: Arduino/Teensy transmitting over RS485?
Replies: 17
Views: 24095

Re: Arduino/Teensy transmitting over RS485?

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. I'm sorry, i'm a mechanical engineer so i'm still learning a lot of the tech side of the hobby....
by fryslan76
Jul 1st, 2020, 3:52 am
Forum: The Mission is Over
Topic: If you have enough lego
Replies: 2
Views: 8821

If you have enough lego

Not my build but liked it a lot:
https://youtu.be/MdfUSNzc0Xk
by fryslan76
Jun 29th, 2020, 12:11 pm
Forum: Control Systems and Tethers
Topic: Arduino/Teensy transmitting over RS485?
Replies: 17
Views: 24095

Re: Arduino/Teensy transmitting over RS485?

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.
by fryslan76
Jun 17th, 2020, 2:53 am
Forum: Control Systems and Tethers
Topic: Problems Arduino Nano V3 and MAX485 no clear connection
Replies: 18
Views: 15975

Re: Problems Arduino Nano V3 and MAX485 no clear connection

Is your issue simulair like this one: https://forums.adafruit.com/viewtopic.p ... 35#p339477 there are several solutions in that thread. I find the adafruit forum excellent fir debuging sensor issues.