Nick_Pyner:
You may have good reason to have so many Arduinos so close together
Part of the project is management some tanks each one do the same task, but the processes can run using one tank or 10. To keep the project scalable I'm planning using one arduino for each tank ... if the production expand I only "clone" this controller and it works stand alone.
If I have 4 tanks in one place connected in one network and In other place I have other 3 tanks sharing other network, I will need collect data 2 times only instead 7 times (each arduino).
Nick_Pyner:
This portable device need not be an Arduino. An Arduino would merely be an intermediary device, a phone would probably do a better job, and a laptop certainly would
You are right! One laptop do this job perfectly, but I'm going back to the world of microcontrollers now and have not caught big challenges with arduinos yet. So using an arduino as data coelctor is also a chance to study its architecture.
Nick_Pyner:
Not necessarily. A master merely initiates communication. After that, it doesn't matter which is which. Unless you need to log multiple packets per second, speed doesn't doesn't merit much thought.
No, as you see I realy don't need this...
Thanks