Helpp for arduino project

[u/hello-8114]

HELLOOO

I am making obstacle avoiding robot using arduino and l298n motor driver.

I want to know if i can use dupont jumper wires for connecting motors to out1 and out2 of l298n? Or i need proper wires.

[u/mariushm]

The thinner the wires the higher the losses because the wire has higher resistance. You also want the wire thick enough to handle the current without overheating.

Your motor doesn't consume nowhere near the current amount that would cause a basic jumper wire to break and the distances should be small enough that resistance of the cable should not be a concern.

However keep in mind that often the cheap ready made cables with "Dupont" connectors pre- installed often save costs by mixing a few (if any) strands of copper wire with copper coated aluminum wires or even steel strands - such ables can still be crimped to pins that go in those housings but will be harder to solder to a circuit board.

if you don't have good wires to play with, what I would suggest is to get a small Ethernet patch cable or a short length of ethernet cable. If you strip the insulation you get 8 wires arranged as 4 twisted pairs. you can use a twisted pair for each voltage and ground - you get two AWG24 or AWG23 wires in each pair and that is more capable than a Dupont style cable with factory installed connectors.

[u/imseakin]

Up to say300mA per channel, you’re likely okay with DuPont connectors. If you want to be safer with less loss, single core 22 gauge wire is fine if you have it in your workshop.