Hello,
I have a very simple circuit where a KY003 hall sensor is connected to an Arduino with 5V, GND and pin which works nicely while sat on my desk.
I want to replace the wires between the KY003 and Arduino with 1m wires.
Additional information: The Arduino itself is powered by 3m 2.0 USB over which it will also send serial data.
Will I run in to any issues with this sort of length set up? I'm aware this is something I can just try however I need to buy longer cables.
Thanks in advance.
Voltage drop can be entirely computed by yourself! Know the wire diameter. Measure the current through the wires. Lookup the resistance per foot/meter, etc. for your wire diameter. Since you know the wire length. The length is 2X the distance because the current must return to it's source.
The resistance computed X the current in amps squared will give you the voltage drop.
So buy the cables and try!
No current, no voltage drop.
From the minimum information given, sounds like a low current application.
Voltage drop will probably not be significant.
We need to know what currents you have.
Voltage drop is not the only possible problem with long wires.
Long wires pick up signals from nearby household AC circuits, radio stations, motors, etc. and those will cause data corruption or false triggers in sensor circuitry. Twisted pair with one lead grounded helps, and in severe cases, you may even need to use shielded cable.
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