I need to place 3 hall effect sensors outside and a considerable distance from the arduino.
you'll only have 5 Postive + , Negative - , and 3 signal wires. At the sensors have the power leads paralleled, and then you will only have the 3 individual signal wires coming back. easy So a cat5 (8 wire) will be more than enough
Quote from: bobhawkens on Apr 07, 2012, 02:58 amI need to place 3 hall effect sensors outside and a considerable distance from the arduino.Which "hall effect sensors" and what is "a considerable distance"?For instance, if the distance was 1000 feet, and those "sensors" are just the bare packages, without any amplification or anything (ie - non-"active" sensors), you might end up finding nothing more than "noise" on the other end of that 1000 feet.But all of that is speculation; a link to a datasheet for the sensor in question, and a general distance would be better.