How to connect Arduinos via Serial

[dardoro]

@nils_r

I work on the app and not the browser

Snap4Arduino desktop?
It's a NW.js app. I don't know how to debug permission/compatibility problems in this environment.

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@nils_r

thought that it should be enougth if i can send a String to the arduino. I would like to run the sending part on the arduino.

@dardoro

The "Serial Ports" library is intended for the vanilla Snap!

https://snap.berkeley.edu/snap/snap.html
.
Minimal Arduino sketch and test script

Serial Ports seems to not work anymore

It works for me... This simple Arduino sketch responds with the letter next to the received one. Tested on ESP8266. Echo.ino side, A >> B [serial script pic (1)]