Master/Slave wirless network

Projects General Guidance
1

I'm relatively new to Arduino, I have a few projects under my belt but would still appreciate the 1st grade explanation XD

What I am trying to accomplish is to create a small network of master/slave units. Each of the slave units (probably no more then 10 slave units per network) may have different functions. Some may monitor movement, some may monitor sound, others may monitor weight... They all would ideally communicate to a maser unit via WIFI. The master unit then would communicate using it's MAC address to a central remote database...

My question relates to the slave units... is that possible? any idea on material that would be needed to make that connection between the master and slave units... (I understand each of the slave units will need to have various compoents added depending on what the function of the slave is supposed to be)

2

WiFi on each slave is going to get VERY expensive. Figure $100 per node (Arduino + WiFi + power + sensors) with the majority of that being WiFi.

Perhaps you should look into the nRF24L01+ transceivers which cost $1.90 each.

Another choice is a JeeNode V6 ($22.50) which combines an Arduino compatible with a cheap ISM-band transceiver. http://shop.moderndevice.com/products/jeenode-kit

3

thats great information! I wondered about cost on each unit...

Looking into the JeeNode.. If I'm looking at this correctly that would act as the "interface" board between the master and slave... then I would just need to add the necessary sensor and power source... is that correct?

Any idea on distance one of these units will communicate? Assuming a typical residential environment..

4

monergy:
Any idea on distance one of these units will communicate? Assuming a typical residential environment..

One reference I found via Google said they were getting about 150 feet indoors through several walls.