i am interested in making a device that will send out a bluetooth signal with an operating range of about 40ft.
i am also interested in making a device that will read this signal and operate accordingly
i think i need to purchase the Bluetooth® SMD Module - Roving Networks (sku: WRL-08497) as a transmitter but i dont know what to get for a receiver. am I on the right track?
As far as I know, all bluetooth devices are transceivers - both transmitters and receivers. Same device at both ends should work
really? huh, thank goodness i didn’t buy some parts that i thought i needed
is there need for a usb bluetooth dongle?
Well that all depends on what you are trying to do 
I don’t know if you need more info than what I’m going to give but If you do need more information please just let me know so that I can get it to you soon. I really, really, really appreciate your help
Well, here’s the scoop…
I want a single device to be sending out particular information (bluetooth – text) that is easily read from a distance of 40ft (baud rate is not too important)
I want multiple devices to be able to read this bluetooth signal and perform the same task (lets start off with turning a light off and on) .
Initially, I was thinking that I needed one bluetooth transmitter and multiple bluetooth receivers.
I’m really new to all this so I might know what I need to do but just too nervous to purchase any device
Again…thank you very much