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[on:]

hello everyone this is my first post, I'm mechatronics engineering student and I'm working on two arduino communication
modules using bluetooht
JY-MCU and want help to understand how to pair the two modules without needing a computer or cell phone if not arduino to arduino.
I hope can help me with this

[Reply #1 on:]

Do you have a link to a datasheet for your hardware?

[Reply #2 on:]

JY-MCU is what they call a linvor module on a 4-pin 5V header.  That's what I have.

It depends what firmware you have as to how flexible the device is.  HC-06 is the one I have, but get HC-06 if you can.

The user manual is here

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CFEQFjAB&url=http%3A%2F%2Fwww.rasmicro.com%2FBluetooth%2FHC%2520Serial%2520Bluetooth%2520Products%2520201104.pdf&ei=IJ3gT_SyCYaR0AWmwZj-DA&usg=AFQjCNGN1VrNEVgopd4IPp726o4s2SEXCw&sig2=w1KZy6WSBH02doYWG5syWQ

or google for HC Serial Bluetooth Products User Instructional Manual

This chap tells you how to upgrade the firmware, but it looks a bit hairy to me!
http://byron76.blogspot.co.uk/2011/09/hc05-firmware.html

One last thing:  I found a much more useful utility to set up the adapter with AT commands than the putty or hyperterm route... it's calls sscom3e I think - it's covered in Korean writing, but it works quite reliably.

Good luck

Brian Williams