Want Guidance for my Arduino Networking

Other Hardware Home Automation
1

Hello Dears ,

I want to make a wireless connection projects that have a star network. Or, Point to Multi-Point.

With Arduino I want to make it, for agricultural purposes, for a distance about of 3500 meters.

I have 20 slave node and 1 Master.

With regard to the question of what kind of modules do you recommend?

is suitable NRF24L01 module for this project??

Thanks for your Help.

2

Probably not. NRF24s are not that much different from Bluetooth. The high power ones with a stick antenna are good for about a kilometre. I think you need something like XBee s3b.