Repeater and motion

[insomnia]

The sketch works only it is sending the motion every second. I only want the sensor to send if there is motion. Who can help me with the code?

#include <MySensor.h>  
#include <SPI.h>

#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define CHILD_ID 1   // Id of the sensor child

MySensor gw;
// Initialize motion message
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()  
{  
  // The third argument enables repeater mode.
  gw.begin(NULL, AUTO, true);

  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Motion Sensor/Repeater", "1.0");

  pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID, S_MOTION);
  
}

void loop()     
{     
  // By calling process() you route messages in the background
  gw.process();
  
  // Read digital motion value
  boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; 
        
  Serial.println(tripped);
  gw.send(msg.set(tripped?"1":"0"));  // Send tripped value to gw 
 
}

[sundberg84]

Is your sensor giving you a HIGH reading all the time?

[Dwalt]

@insomnia

Your sketch has the motion sensor sending its status every time through the loop, add a qualifier to only send when the status changes:

boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; 
  if (tripped != lastTrippedState)
  {  
    Serial.println(tripped? "tripped" : "not tripped");
    gw.send(msg.set(tripped?"1":"0"));// Send tripped value to gw//
    lastTrippedState = tripped
  }

[insomnia]

@Dwalt That was what i needed. It works now :-)