Hello!
I have a project (I can't disclose what the project actually is due to NDA requirements) where I will have a central computer (likely a Raspberry Pi, eventaually, but probably a PC to start with) that needs to talk to several slave devices, over a wireless link up to about 500 feet. Each slave device will be sensing data and sending the data back to the master in real time and based on the sensed data at the slaves, the master sends control data back to the slaves.
Example: Say you have water level sensors on several pools of water. You have a master computer that talks via rs232 wirelessly to each sensor at each pool and if the level is over a certain amount, the master tells the slave to stop the pump filling that pool.
There could be any number of slaves (in my project, 10 to 15).
I was thinking of using the RFA020 module for the comm, but I have no idea how to make them "adressable" or whatever so that I only need one RFA020 unit on the master and each slave have it's own RFA020 unit.
Can anyone point me in the right direction with this?
Thank you for any assistance in advance.
Doug
I have a project (I can't disclose what the project actually is due to NDA requirements) where I will have a central computer (likely a Raspberry Pi, eventaually, but probably a PC to start with) that needs to talk to several slave devices, over a wireless link up to about 500 feet. Each slave device will be sensing data and sending the data back to the master in real time and based on the sensed data at the slaves, the master sends control data back to the slaves.
Example: Say you have water level sensors on several pools of water. You have a master computer that talks via rs232 wirelessly to each sensor at each pool and if the level is over a certain amount, the master tells the slave to stop the pump filling that pool.
There could be any number of slaves (in my project, 10 to 15).
I was thinking of using the RFA020 module for the comm, but I have no idea how to make them "adressable" or whatever so that I only need one RFA020 unit on the master and each slave have it's own RFA020 unit.
Can anyone point me in the right direction with this?
Thank you for any assistance in advance.
Doug
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