How to convert published string data to an int after subscribed to

Firmware
1

Hi everyone, I’m not that good when it comes to dealing with strings so if this is an easy question then you understand. Anyways I have a code to subscribe to a potentiometer value which is converted into a string before it’s published which is on Photon A. Now Photon B subscribes to that. But the trouble is I need to know how to convert a string to an int after subscribing to an event so that way when I try to send that data to my arduino via tx the data isn’t bogus. Here is my code that subscribes:

int reading1;
String reading1AsAString;

void setup() {
Particle.subscribe(“sense1”, myHandler);
Serial1.begin(9600);
}

void loop() {
}
void myHandler(const char *eventname, const char *data) {

Serial1.println(data);

}

So the ‘data’ is in a string. I would like to know how to convert that string to an int before the line " Serial1.println(data);" Sorry if this is unclear (I’m new to the particle community). If you need to see the publishing code just ask, or if you want me to clarify. -Thanks :grinning:

2

try aoti()

void myHandler(const char *eventname, const char *data) 
{
  int myValue = atoi(data);
}
1 Like
3

Thanks @BulldogLowell your suggestion works great!