Help with Serial.Read() getting string.
int dword;
void setup(){
serial.begin(9600);
serial.write("power on");
}
void loop(){
dword=serial.read();
if(dword=='1'){
serial.write("\nmotor 1 -> selected\n");
}
if(dword=='2'){
serial.write("\nmotor 2 -> selected\n");
}
/*if*dword=="m1"){
//do.....
}*/
}
how can can type strings? instead of single chars,
void setup(){
serial.begin(9600);
serial.write("power on");
}
void loop(){
dword=serial.read();
if(dword=='1'){
serial.write("\nmotor 1 -> selected\n");
}
if(dword=='2'){
serial.write("\nmotor 2 -> selected\n");
}
/*if*dword=="m1"){
//do.....
}*/
}
how can can type strings? instead of single chars,
there couple of ways go it.
you read byte (that's serial.read returns; not int), , make decision based on character, read again.
or, read available data, , store in array of characters.
you read byte (that's serial.read returns; not int), , make decision based on character, read again.
or, read available data, , store in array of characters.
code: [select]
char indata[20]; // allocate space string
char inchar; // store character read
byte index = 0; // index array; store character
void loop()
{
while(serial.available() > 0) // don't read unless
// there know there data
{
if(index < 19) // 1 less size of array
{
inchar = serial.read(); // read character
indata[index] = inchar; // store it
index++; // increment write next
indata[index] = '\0'; // null terminate string
}
}
// string (but not using ==)
}
Arduino Forum > Forum 2005-2010 (read only) > Software > Syntax & Programs > Help with Serial.Read() getting string.
arduino
Comments
Post a Comment