Recently worked on a project where I had to receive strings from Arduino to Openframeworks. Its not really that straight forward like processing so thought of sharing the code..
filename.h
ofSerial mySerial;
filename.cpp
setup() {mySerial.setup(0, 9600); // update port no and baud rate according to your system.
}
// trim trailing spaces
string ofxTrimStringRight(string str) {
size_t endpos = str.find_last_not_of(” \t\r\n”);
return (string::npos != endpos) ? str.substr( 0, endpos+1) : str;
}
// trim trailing spaces
string ofxTrimStringLeft(string str) {
size_t startpos = str.find_first_not_of(” \t\r\n”);
return (string::npos != startpos) ? str.substr(startpos) : str;
}
string ofxTrimString(string str) {
return ofxTrimStringLeft(ofxTrimStringRight(str));;
}
string ofxGetSerialString(ofSerial &serial, char until) {
static string str;
stringstream ss;
char ch;
int ttl=1000;
while ((ch=serial.readByte())>0 && ttl–>0 && ch!=until) {
ss << ch;
}
str+=ss.str();
if (ch==until) {
string tmp=str;
str=”";
return ofxTrimString(tmp);
} else {
return “”;
}
}
update() {
// Receive String from Arduino
string str;
do {
str = ofxGetSerialString(mySerial,’\n’); //read until end of line
if (str==”") continue;
for(int i = 0; i < str.length(); i++) {
printf(“%c”,str[i]);
}
printf(“\n”);
} while (str!=”");
}
