Bluetooth vs. RF Tx Comm Question

jtrz

Hi all!

Kind of new to the Basic Stamps here.· Have done a few successful projects.· But I need a little direction on an idea.· A link to a method or an example project would be much appreciated!·

I'm not sure if this should be accomplished via Bluetooth or something like an RF Tx.

I would like a circuit that I create to be able to send a signal to another identical but completely separate circuit to signal it to do something.· For example, my circuit lights a multi-color LED to a certain color.· Then sends a signal to the other circuit with a message to (a) light it's multi-color LED up when the msg is received and (b) a representation of what the specific color the LED should be.

I'm a software developer and if this were all in software, I'd have it done by now [noparse]:)[/noparse]

But let's say I want a number of these circuits (2-30 of them) in a room the size of a big banquet hall.·

How would you do the communications between the units?

Any help will be appreciated!

Thanks,

John

Mike Green

I would recommend using xBee. It has longer range than Bluetooth and the modules are simple to use. They can be configured to send packets using node addresses and you can have more than 30 of them. Unlike most of the RF Tx modules, they include error detection and correction. They're also small.

There were some Stamp interface boards here: www.selmaware.com. Martin no longer makes them, but he has some unpopulated boards still for sale and there are only a few parts on them. I believe he has some examples of their use on his site and there are links to the manufacturer's documentation which is pretty straightforward.

jtrz

Thanks for the info Mike! I'll definitely look into it.

John