Sharing a serial connection between 2 ardiunos?

Projects General Guidance
1

Hi all,

I have been reading up on connecting 2 ardionos via wire library and this works brilliantly, but is there a way to connect 2 arduinos so that a serial command goes to both arduinos without having to use a sketch/code to control this, i.e. so I can send a serial command via one com port to both arduinos?

Thanks in advance.

2

Yes, but only in one direction.
A serial TX can be connected to a a few RX.

3

Hi Peter,

Thanks for your reply, I have tried this, did not work the first time but will give it a go again. Connected Arduino Mega pin "TX 1" to UNO pin "RX 0".

Thanks again.