Yun client.get with variable

should be an easy one but Im not getting it. How do I use a variable in the client.get?

Doesn’t work:

String url = "";



full code

#include <Bridge.h>
#include <HttpClient.h>
volatile int NbTopsFan; //measuring the rising edges of the signal
int Calc;                               
int hallsensor = 2;    //The pin location of the sensor

void rpm ()     //This is the function that the interupt calls 
  NbTopsFan++;  //This function measures the rising and falling edge of the hall effect sensors signal
void setup() {
  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
  pinMode(hallsensor, INPUT); //initializes digital pin 2 as an input
 attachInterrupt(0, rpm, RISING); //and the interrupt is attached

void loop() {
   NbTopsFan = 0;	//Set NbTops to 0 ready for calculations
//  sei();		//Enables interrupts
//  delay (1000);	//Wait 1 second
//  cli();		//Disable interrupts
  Calc = (NbTopsFan * 60 / 7.5); //(Pulse frequency x 60) / 7.5Q, = flow rate in L/hour 
  Serial.print (Calc, DEC); //Prints the number calculated above
  Serial.print (" L/hour\r\n"); //Prints "L/hour" and returns a  new line
  HttpClient client;
  String url = "";
  //url += String(Calc);

  while (client.available()) {
    char c =;


hmmm nevermind. Seems to work.

Yun seems to sometimes be really slow to start the sketch after an upload. Took 3 or 4 minutes before it started posting.

so me not being patient I never saw it post before changing the sketch and reuploading trying to get it to work.

Been screwing with me since last night. Just got my Yun. Finally wifi and lan with my arduino!!

Same problem with Jointtech.
Anybody know how to using client.get work with variables.?

Anybody know how to using client.get work with variables.?

OP explained what his/her problem was, and posted code. You failed to do either one.