I would like to know what device and model to use for an application where I will have
1 arduino as a master micro controller waiting to receive data from
5 slave arduino microcontrollers.
Master arduino will be connected to local network via Ethernet cable so once it receive data from a
Slave controller it needs to post to server the information, get a response back and in case the response is a "true" value then the
Master need to talk back to the
Slave in order to turn a LED on.
There will be cases when maybe 3 of the
Slaves will send data at the same time, this doesn't mean at exactly the same millisecond. So I don't know if there will be data lost.
I was reading that
Xbee maybe is the best device because it has a feature that will hold the data until there is a success communication with slave.
Is this a doable and "easy" task using
Xbee? Anyone that already try to do something like this that can guide me?
I was reading that there is a device
nRF24l01that is very cheap and can do exactly what I need. Just that I don't really know how to start.
Appreciate any advice or help.