Dear All,
I use rs232-bluetooth gateway (HC-06 - slave) with jy-mcu v1.06 backboard. I would like to purchase more devices, but v1.02 are more cheaper...
- Can Anyone explain me what are the differences between the 1.02, 1.03, 1.04, 1.05, 1.06 jy-mcu bluetooth boards? I didn't find any usesable docs on google.
- What is SSY-2431 backboard? is it equivalent with jy-mcu? which version?
Thanks for the answers.
cociweb:
Can Anyone explain me what are the differences between the 1.02, 1.03, 1.04, 1.05, 1.06 jy-mcu bluetooth boards? I didn't find any usesable docs on google. 
Nor did I. This is probably because there aren't any of note There appears to be no discrimination about which of the HC-0x family you can install on them either, and that is the only thing that counts.
What is SSY-2431 backboard? is it equivalent with jy-mcu? which version?
It is pin compatible and carries an HC-06, therefore functionally the same. I imagine there are HC-05 versions available but I don't recall seeing any.