Hello!.
I am working on a prototype of light tower for trail running, and I am using an Arduino One, and 10 Xbee S2. The coordinator API with the arduino I use a Xbee Shield from SainSmart.
The problem is with a very basic AT Command to blink on/ Off a led…this is not working if between On stage to Off Stage we have a delay less than 2000 ms, and I need to decrease this value on to 50ms.
When I use a delay less that 2000 ms; the Arduino + Xbee the remote led; just blink a couple of time, and the base Bee-Arduino, just blink 5 times. When I use a delay 2000ms…Everything work perfectly…but I need to work on 50 ms
Below you can see the Sketch that I am using:
//Xbee003.000_test1.ino
const int bLEDPin = 3;
const int gLEDPin = 5;
const int rLEDPin = 6;
void setup() {
Serial.begin(9600);
pinMode(bLEDPin, OUTPUT);
pinMode(gLEDPin, OUTPUT);
pinMode(rLEDPin, OUTPUT);
digitalWrite(bLEDPin, LOW);
digitalWrite(gLEDPin, LOW);
digitalWrite(rLEDPin, LOW);
}
void loop() {
digitalWrite(bLEDPin, HIGH);
digitalWrite(gLEDPin, HIGH);
digitalWrite(rLEDPin, HIGH);
setRemoteState(0x05);
delay(2000);
digitalWrite(bLEDPin, LOW);
digitalWrite(gLEDPin, LOW);
digitalWrite(rLEDPin, LOW);
setRemoteState(0x04);
delay(2000);
}
void setRemoteState(char value){
Serial.write(0x7E); //Start byte frame
Serial.write(0x00); //High part of lenght Frame 00
Serial.write(0x10); //Low part of lenght Frame(the number of bytes that follow, not including checksum)
Serial.write(0x17); //Frame type -Remote AT Command
Serial.write(0x01); //Frame ID 01
//ID of recipient; or use 0xFF FF for broadcast
Serial.write(0x00);
Serial.write(0x00);
Serial.write(0x00);
Serial.write(0x00);
Serial.write(0x00);
Serial.write(0x00);
Serial.write(0xFF);
Serial.write(0xFF);
//16 bit of recipient or 0xFF FE if Unknown or broadcast
Serial.write(0xFF);
Serial.write(0xFE);
Serial.write(0x02); //to apply changes immediately
//Command name in HEX
Serial.write(0x44);
Serial.write(0x31);
Serial.write(value);
//Checksumis all bytes after lenght bytes
long sum = 0x17 + 0x01 + 0xFF + 0xFF + 0xFF + 0xFE + 0x02 + 0x44 + 0x31 + value;
Serial.write(0xFF - ( sum & 0xFF));
//delay(10);
}