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11 years, 4 months ago.
Communication between two Xbees using Mbed
Hi i am trying to communicate between two xbees (digi S1 bought from sparkfun). I am using one Xbee as TX and other as RX. my Transmitter is working fine but receiver is not getting anything :( don't know what is the problem. can anyone help me
attached is the code of both TX and RX
..........TX.................
- include "mbed.h" Serial xbee1(p9, p10); DigitalOut rst1(p11);
DigitalOut myled1(LED1); DigitalOut myled2(LED2);
Serial pc(USBTX, USBRX);
int main() {
pc.baud(9600); xbee1.baud(9600);
char a,b; char buff[]="1111 1234 mynameisaftabmynameisaftabmynameisaftab";
while(1)
{
rst1 = 0;
wait_ms(1); rst1 = 1;
int i=0; if(xbee1.writeable()) { while(buff[i]!='\0') { xbee1.putc(buff[i]); pc.putc(buff[i]); i++; myled1=0; wait(.1); myled1=1; } }
} }
.......RX..............
- include "mbed.h" Serial xbee1(p9, p10); DigitalOut rst1(p11);
DigitalOut myled1(LED1); DigitalOut myled2(LED2);
Serial pc(USBTX, USBRX);
int main() {
pc.baud(9600); xbee1.baud(9600); int i; char a,b; char data[100];
reset the xbees (at least 200ns)
while(1)
{ i=0; rst1 = 0; wait_ms(1); rst1 = 1;
if(xbee1.readable()) { a=xbee1.getc(); while(a!='\0') { data[i]=a; pc.putc(data[i]); i++; a=xbee1.getc(); myled1=0; wait(.1); myled1=1; } }
} }
can anyone help me :(
2 Answers
11 years, 4 months ago.
Before you use this code for data transmission, you must configure the modules individually.
Good tutorial is: http://examples.digi.com/get-started/basic-xbee-802-15-4-chat/
Please, place your code into <<code>>your code<</code>>
tags. It's more readable.
11 years, 4 months ago.
Thank You Martin
It works fine with the character echo program found in xbee cookbook but when i send data from one mbed to another transmitter transmits but receiver doesn't receive anything :( i have sent the PAN ID =3332, DH=0,DL=0,MY=0 of all the devices can this be a problem??
Check my link at above. It's all described there.
In a nutshell, if you want connect 2 Xbees, so for the first one: PAN ID=3332, MY=1, DH=0 , DL=2
and for the second XBee: PAN ID=3332, MY=2, DH=0 , DL=1
You can't set the same addresses as you wrote.
posted by 01 Aug 2013Martin actually what happens is that i am getting the data using the RX xbee with X-CTU when connecting to PC. but when i RX data over mbed and then Display it using putty over serial i get no output ? if the problem is with the ID's (MY,DH,DL) then why am i getting the data on PC using the xbee explorer
posted by 01 Aug 2013