I am working with a Ciseco srf module trying to send "+++" from an arduino nano. My code is
bool b =false;
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
Serial.write('+');// Ihave tried Serial.write("+++")
Serial.write('+');// but this sends "+++<CR>" :(
Serial.write('+');
}
void loop() {
String content = "";
char character;
if(!b)
{
//Serial.print("sent");
b = true;
}
while(Serial.available()) {
character = Serial.read();
content.concat(character);
}
if (content != "") {
Serial.println(content);
}
}
The problem is Arduino seems to send a Carriage Return <CR>
on Serial.write("+++")
or other combination. Can someone help me turn off the Carriage Return on Arduino and be strict to program serial communication?
According to arduino manual http://www.arduino.cc/en/Serial/Write use serial.write(0x2B) three times to send the '+' character to the SRF module. or you can fill a buffer with those 3 characters and send them with serial.write(buffer,len).