Anyone used one of these Bluetooth serial modules?

B

beb101

Senior Member
vttom said:
I'm planning out a project that would communicate serial data between a PICAXE and a PC using a Bluetooth SPP module. I'm only interested in transmitting data from a running PICAXE, not trying to program the PICAXE over Bluetooth.

Here are 2 modules that I found. Anyone had any experience with either one?

http://www.adafruit.com/products/1588
https://www.sparkfun.com/products/10253
Click to expand...
I have not used your linked modules, but have used this module and similar eBay versions,
http://usd.dx.com/product/jy-mcu-arduino-bluetooth-wireless-serial-port-module-901104299

The RN-42 is used in the Brainlink,
http://www.picaxeforum.co.uk/showthread.php?25838-OT-Brainlink-Bluetooth-IR-controller
Unfortunately, the price is now $79.
 
B

BeanieBots

Moderator
I've not used the specific ones you linked to but I have used the VERY cheap HC-05 / HC-06 versions.
Things to look out for:
1. MAKE SURE YOU CAN GET A DATASHEET.
Under no circumstanaces whatsover should you even consider purchase until you have the datasheet.
2. Make sure it is tollerant of your working voltage 5v or 3.3v
3. Decide if you want master, slave or both. (huge price difference)
4. Is the power suitable for the desired range. (100m or 10m).
5. any other things which might be important such as support of extra high baud rates and/or handshaking.
 
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