i’ve been doing some reading, but i have no real hands on experience with bluetooth. im trying to figure out what the lowest power technique for sending a small amount of data over bluetooth is?
the application is to try and have a device powered by a small battery with an indicator of some sort, an another device that is more robustly powered (usb bt dongle, cell phone, pda, ect) control the indicator over the bt connection.
i’ve done similar applications with the nordic nrf24l01/+ and the ti cc1101 where the remote device checks in to the master periodically and then the remote goes back to sleep to conserve power. i’d like to do the same thing, but i dont know how well bt lets you do something like that.
any thoughts?
Bluetooth is not a good technology for simple command/response devices. Too complex and costly for that as compared to other approaches. Take a look at the suite of Bluetooth profiles and the stacks.
Consider ready to use IEEE 802.15.4 modules such as those sold by SFE and others.
Or a garage door opener TX/RX if the application is that simple, just a few bits.
Hey there,
I know of a very simple module that can accomplish what you are looking for.
It utilizes a Nordic radio, but has been put into a module (antenna included) so you don’t need to do much engineering.
http://www.semiconductorstore.com/cart/ … duct=42881
I work for Symmetry and we are a franchised distributor for both Nordic and RF Digital, so if you need some more details, PM me and I will be happy to help.
-Brian