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Hello guys, I would like to ask for advice on how to code my microcontroller (nodeMCU esp-12) to turn ON/OFF digital pins of the remote router devices using a single coordinator device.
I have followed this guide and I was able to test it with 1 coordinator and 1 router. Now I would like to add another router device to the network. I was not able to find enough information on how to do that and whether it is possible to do that using AT commands. Would changing the low part and high part of the adress (lines 24 and 25) allow me to switch between which device to communicate with?
I have followed this guide and I was able to test it with 1 coordinator and 1 router. Now I would like to add another router device to the network. I was not able to find enough information on how to do that and whether it is possible to do that using AT commands. Would changing the low part and high part of the adress (lines 24 and 25) allow me to switch between which device to communicate with?
C:
/code by tunnelsup
//youtube tutorial: https://www.youtube.com/watch?v=CzH146rR-7I
//toggles local LED and remote XBee LED on and off
int led = 13;
void setup(){
pinMode(led, OUTPUT);
Serial.begin(9600);
}
void loop(){
digitalWrite(led, HIGH);
setRemoteState(0x5);
delay(5000);
digitalWrite(led, LOW);
setRemoteState(0x4);
delay(5000);
}
void setRemoteState (char value){
Serial.write(0x7E); //start byte
Serial.write((byte)0x0); //high part of length (always zero)
Serial.write(0x10); //low part of length
Serial.write(0x17); //0x17 is remote AT command
Serial.write((byte)0x0); //frame ID set to zero for no reply
//ID of recipient, or use 0xFFFF for broadcast
Serial.write((byte)0x0);
Serial.write((byte)0x0);
Serial.write((byte)0x0);
Serial.write((byte)0x0);
Serial.write((byte)0x0);
Serial.write((byte)0x0);
Serial.write(0xFF);
Serial.write(0xFF);
//16 bit of recipient of 0xFFFE
Serial.write(0xFF);
Serial.write(0xFE);
Serial.write(0x02);
Serial.write('D');
Serial.write('4');
//command data in as many bytes
Serial.write(value);
//checksum
long sum = 0x17 + 0xFF + 0xFF + 0xFF + 0xFE + 0x02 + 'D' + '4' + value;
Serial.write(0xFF - (sum & 0xFF));
}
