Powering one Arduino Leonardo ETH from other Arduino Leonardo ETH using POE

Projects General Guidance
1

Hi all!!!

I´m new in the forum and need some advice... Looked through quite a lot in other posts, but I didn't find what I was looking for.

In my project I have two arduino leonardo ETH 2 with POE: Accessories — Arduino Official Store

Righ now I have both connected by a RJ45 wire and the communication is good (when a digital read of one is activated, send a message via UDP to the other one and activate a digital output).

Now the power connection is via DC input in each Arduino. But what I want is to power one Arduino via DC input and the other via POE from the first Arduino. I mean use the RJ45 wire not only to transmit data from one Arduino to other, also to transmit power. Is that possible?

Thanks in advance!

2

Now the power connection is via DC input in each Arduino. But what I want is to power one Arduino via DC input and the other via POE from the first Arduino. I mean use the RJ45 wire not only to transmit data from one Arduino to other, also to transmit power. Is that possible?

No, the PoE module works just in one direction. You may use a PoE injector just after the first Leonardo to power the second one but you cannot do it the way you proposed.

3

pylon:
No, the PoE module works just in one direction. You may use a PoE injector just after the first Leonardo to power the second one but you cannot do it the way you proposed.

Ok, thanks for your answer!!