mrburnette:
There is probably some examples on the forum - you can search.
But most if the time, Google will do fine:
http://lmgtfy.com/?q=instructables+arduino+bluetooth
thanks for replying,
i found it, i didn´t know there was a AT mode, all tutorials i found before, started explaining the AT commands that i should send , like i could just connect the JYMCU and send it..
i had to input LOW level to the "KEY" pin of JYMCU, then supply the module,then input HIGH to "KEY", with a baud rate =9600..
then i succesfully sent data between 2 JYMCU, but i still got some problems...
after set AT+UART=115200,0,0
if i turn the JYMCU off, it does not answer to ATCommands, unless i set Myserial.begin(115200)..
but when i do that, the response appears as strange symbols, like when wrong baudrate is set..
other problem is that i want to receive data from 2 different BT, but when i LINK master to one slave, it stops to answer AT commands, so i cant LINK to another one..
is it impossible to make it receive data from 2 different JYMCU simultaneously? if it is possible , how can i do that? how would be the master´s code to know from wich BT the data is coming?
again, sorry by my bad english and thanks in advance