Creating a star network?

Hi i would like to know if it is possible to build a star network with nRF24L01+ 2.4 ghz radio transivers http://www.ebay.com/itm/Arduino-NRF24L01-2-4GHz-Antenna-Wireless-Transceiver-Module-For-Microcontroll-/310670158878?pt=LH_DefaultDomain_0&hash=item4855626c1e Ive been trying to use this page http://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo and have been trying to understand it but im new to arduino and coding so i really need help In the star network i need to know if it will be possible to have the arduinos both send and receive data ? (half duplex ) Thankyou

Just to be clear, are you asking about a point-to-multipoint setup, where there is one central radio talking to multiple outlying radios, or a point-to-point setup, where there are multiple links consisting of two radios each, with one central end-point terminating all of the links?

If you look at RF24Network library, that actually implements a Tree network, but the Base Node (00) and first 5 Childs (01-05) effectively make a 6 node Star network. This is because there are 6 Pipes available in the nRF24L01(+) .

Because each successive layer keeps 1 pipe for communication to it's Parent, it leaves 5 pipes for Child nodes.

In that same model then you could actually have 6 nodes from the base, but RF24Network drops additional one at the Base Node to keep everything consistent.

How many nodes do you need in your network? If you need 5 or less then maybe RF24Network will do what you need.

joshuabardwell: Just to be clear, are you asking about a point-to-multipoint setup, where there is one central radio talking to multiple outlying radios, or a point-to-point setup, where there are multiple links consisting of two radios each, with one central end-point terminating all of the links?

I would like a point to multipoint setput , one central radio and multiple radios around , all functioning in half duplex mode

tack: If you look at RF24Network library, that actually implements a Tree network, but the Base Node (00) and first 5 Childs (01-05) effectively make a 6 node Star network. This is because there are 6 Pipes available in the nRF24L01(+) .

Because each successive layer keeps 1 pipe for communication to it's Parent, it leaves 5 pipes for Child nodes.

In that same model then you could actually have 6 nodes from the base, but RF24Network drops additional one at the Base Node to keep everything consistent.

How many nodes do you need in your network? If you need 5 or less then maybe RF24Network will do what you need.

Can you please explain what are pipes and how the radios work , im a total newbie and trying to figure out arduino and programming at the same time Thank you

akinich: I would like a point to multipoint setput , one central radio and multiple radios around , all functioning in half duplex mode

You may find this thread informative: http://forum.arduino.cc/index.php?topic=26092.0

Also this: http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=718085

Take a look at this also - http://maniacbug.wordpress.com/2011/11/02/getting-started-rf24/