| Electronics > Projects, Designs, and Technical Stuff |
| ROV control |
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| Edwin the inductor:
Hello I working on a ROV (remote operating vehicle) I'm hav com to the contorol. I wonder can I use a Arduino with TX RX? the cable is 50 m or should I use rs232? and if I use rs232 how should I do it (I'm bad on programming)? grateful for help. |
| i_am_fubar:
Depends what you need to control. If just forward backward and you have a cable, run multiple telemetry lines? |
| johankj:
If you want to use serial communications: Keep you baud-rate low, like 9600. That is a good trade-off between speed and transmission quality. If you are using the serial-line of an arduino, that is a 3.3V or 5V line. Over 50m you may have an issue. If you use a RS232-chip (like MAX2323), the chip usually bumps the voltage up to +/- 12V. You can easily communicate over 50m at low baud rates. Have a look at the data sheet: http://www.ti.com/lit/ds/symlink/max3232.pdf You would have to have something like an Arduino in both your top-side controller and your ROV. |
| Pack34:
RS485 may be your best bet. It'll handle longer cable runs than RS232 |
| fcb:
As Pack34 says: RS485 Good for 4KM. You can use it in half-duplex or simplex (one pair) or full duplex (two pairs). Speeds for 500M can be quite quick, easily 115K2. |
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