Reading the USB port from one Arduino to another

Projects General Guidance
1

Hello Forum

This is my first appearance here.
Matt from Germany, 52 years old.

My very simple question is this:

Is it possible to receive data via the USB port of Arduino Nano #1 ( which sends data every second to its serial port by ordinary code) to the USB port of Arduino #2 which both are connected by a simple 1:1 wired connection?

Any yes or even any no would be welcome :slight_smile:

Thanks in advance,

Matt

3

Of course this begs the question:

Why are you using two Arduinos?

4

Hello

It MUST be done over the USB port.

The reason is:
Arduino #1 is already part of an existing ( and working) project. Every second it writes a four character long data to the USB port.
Normally the customer uses his PC to read this value - no problem at all.

Using Arduino #2 would allow the customer to use Arduino #1 without the need of a PC just by applying a small display to Arduino #2.

So again my question: Is it possible?

Cheers,
Matt

5

It MUST be done over the USB port.

Then the answer is no.

7

The second Arduino can be hooked to the TX pin of the first one, so that all output goes to both PC and second Arduino.

8

Delta_G:
Hello :slight_smile:
Your answer looks quite good.
But what about the cable?
Does it have to be a special one? ( which I would appreciate )

Thank you for any answer.