ROBOTC.net forums - View topic - Communication Bluetooth

View unanswered posts | View active topics

It is currently Fri May 24, 2013 8:22 pm

Communication Bluetooth

Moderators: mightor, starwarslegokid, miki

Page 1 of 1

[ 6 posts ]

Print view

Previous topic | Next topic

Communication Bluetooth

Author

Message

Zerototale

Rookie

Joined: Tue May 05, 2009 5:06 pm
Posts: 2

Communication Bluetooth

Hi! Please somebody help me!
Sorry for my bad english, i'm italian..
After i have connected 2 nxt via bluetooth manually, i don't understand how to send/receive a message.
I would that once the NXT (1) sends the command "go" the other NTX (2) were starting my program.
I see the example program but i don't understand it.
I use Robot C 1.46
Somebody can help me??
Thanks

Tue May 05, 2009 5:19 pm

yeputons

Rookie

Joined: Thu Jun 26, 2008 10:42 am
Posts: 12

Re: Communication Bluetooth

Hmm... you can see here how to automatically connect NXTs (in your program). And here code for your task:
For first NXT:


	Code: task main { // Your initializations here int port = 1; // To which port second NXT connected byte message[] = { 123 }; for (int i = 0; i < 10; i++) // Sending message for 10 times, because sometimes the message does not reach cCmdMessageWriteToBluetooth(port, message, sizeof message, mailbox1); // Your code here }

And for second NXT:


	Code: task main { // Your initializations here while (cCmdMessageGetSize(mailbox1) < 1) wait1Msec(1); // Waiting for incoming message // Your code here }

Good luck!

P.S. initializations is sensor's calibrations and other commands that must be executed once at the beginning of the program

Wed May 06, 2009 4:33 am

Zerototale

Rookie

Joined: Tue May 05, 2009 5:06 pm
Posts: 2

Re: Communication Bluetooth

Thank you very much!
I have another question...
This string:


	Quote: cCmdMessageWriteToBluetooth(port, message, sizeof message, mailbox1);

I personalize it?

Wed May 06, 2009 3:11 pm

HuKePa

Rookie

Joined: Tue Jul 12, 2011 10:24 am
Posts: 20

Re: Communication Bluetooth

okay somebody can gives a example how to realize this:

Master -> Send some command
Slave -> Moves motorA
Slave -> wait for next command
....

Mon Jul 18, 2011 8:57 am

HuKePa

Rookie

Joined: Tue Jul 12, 2011 10:24 am
Posts: 20

Re: Communication Bluetooth

please tell me how can I read the bluetooth messages and how can I tell the robot to do some movements...?!

Fri Jul 22, 2011 9:38 am

LuuPK_CeIt

Rookie

Joined: Sun Oct 30, 2011 12:54 pm
Posts: 7

Re: Communication Bluetooth

Send a message :
Task Main()
{
string message;
char Temp;
while(strlen(message))
{
Temp = StringGetChar(message,0);
nxtWriteRawHS(Temp, 1);
StringDelete(message, 0, 1);
}
wait1Msec(5);
}

Thu Dec 22, 2011 5:37 am

Page 1 of 1

[ 6 posts ]

Who is online

Users browsing this forum: No registered users and 5 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to: