I created manuel control algorithm for my underwater vehicle, i want to control simple joystick that sends 0-1023 analog signal.
I need at least 20 meters long, could 5v input take care my vehicle?
That is why a 20ma current loop was invented.
Paul
how can i use that with my arduino, i dont have that electric knowledge
Google will become your friend. There are many applications posted here as well. You can purchase commercial units if you want.
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0-1023 is a digital signal! 0 -- 5V or 0 -- 20mA would be an analog signal.
The bandwidth of a joystick is a few tens of Hz, not an issue for long analog runs -
the higher the bandwidth the greater the issues - eventually at high frequencies you
have to start using a transmission line approach to carrying analog signals, but at
DC or audio frequencies this isn't needed.
For instance 20m microphone cables are a thing, carrying very weak analog signals
limited to audio bandwidth.
Its digital signals that generally cause big problems, typical CMOS logic signals have bandwidths of 100's of MHz...
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simple phone wires(flat with 4 wires in it), I think that 20 to 50 meters should be possible. Using shielded cable , hundreds of meters should be possible. The Arduino is not shielded against EMI spikes.
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If you decide to go with the 4-20mA output analog signal, you can integrated an easy circuit that includes a 250 ohm resistor in parallel to convert amp to volts.
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