Ultrasonic Sensor+1 Relay node does not work

[Suresh Mali]

Hi,

I am trying to build a node with Ultrasonic sensor and 1 relay. I used the sample code and tried to build one. I am facing issues. The Domoticz will detect the ultrasonic sensor using the provided example code but when I merge them it gives error and does not detect. My sketch is as below:

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

#define CHILD_ID_DISTANCE 1
#define CHILD_ID_RELAY 10
#define TRIGGER_PIN  6  // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN     5  // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 300 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.
#define RELAY_1  3  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define RELAY_ON 1  // GPIO value to write to turn on attached relay
#define RELAY_OFF 0 // GPIO value to write to turn off attached relay

MySensor gw;
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.
MyMessage msg(CHILD_ID_DISTANCE, V_DISTANCE);
int lastDist;
boolean metric = true; 

void setup()  
{ 
  gw.begin(incomingMessage, AUTO,false);

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

  // Register all sensors to gw (they will be created as child devices)
    gw.present(CHILD_ID_DISTANCE, S_DISTANCE);
    boolean metric = gw.getConfig().isMetric;
  
    gw.sendSketchInfo("Relay", "1.0");
    // Register all sensors to gw (they will be created as child devices)
    gw.present(CHILD_ID_RELAY, S_LIGHT);
    // Then set relay pins in output mode
    pinMode(RELAY_1, OUTPUT);   
    // Set relay to last known state (using eeprom storage) 
    digitalWrite(RELAY_1, gw.loadState(CHILD_ID_RELAY)?RELAY_ON:RELAY_OFF);
  
}

void loop()      
{     
	gw.process();

	int dist = metric?sonar.ping_cm():sonar.ping_in();
	Serial.print("Ping: ");
	Serial.print(dist); // Convert ping time to distance in cm and print result (0 = outside set distance range)
	Serial.println(metric?" cm":" in");

	  if (dist != lastDist) {
		  gw.send(msg.set(dist));
		  lastDist = dist;
	  }

  //gw.sleep(SLEEP_TIME);
	
}

void incomingMessage(const MyMessage &message) {
  // We only expect one type of message from controller. But we better check anyway.
  if (message.type==V_LIGHT) {
     // Change relay state
     digitalWrite(RELAY_1, message.getBool()?RELAY_ON:RELAY_OFF);
     // Store state in eeprom
     gw.saveState(message.sensor, message.getBool());
     // Write some debug info
     Serial.print("Incoming change for sensor:");
     Serial.print(message.sensor);
     Serial.print(", New status: ");
     Serial.println(message.getBool());
   } 
}

I am unable to figure out why it is not working.

The log file from Domoticz shows the below:

2015-05-26 07:05:52.585 MySensors: Using serial port: /dev/ttyUSB0
2015-05-26 07:05:57.410 Error: MySensors: Unhandled sensor (sub-type=13), please report with log!
2015-05-26 07:05:57.429 Error: MySensors: Unhandled sensor (sub-type=13), please report with log!
2015-05-26 07:05:57.440 Error: MySensors: Unhandled sensor (sub-type=13), please report with log!

and it keeps on going.
Below is the output when Node is connected to serial port.

Ping: 11 cm
send: 5-5-0-0 s=1,c=1,t=13,pt=2,l=2,st=ok:11
read: 5-1-0 s=10,c=0,t=3,pt=0,l=5:1.4.1
Ping: 9 cm
send: 5-5-0-0 s=1,c=1,t=13,pt=2,l=2,st=ok:9
read: 5-1-0 s=10,c=0,t=3,pt=0,l=5:1.4.1
Ping: 9 cm
Ping: 11 cm
send: 5-5-0-0 s=1,c=1,t=13,pt=2,l=2,st=ok:11
read: 5-1-0 s=10,c=0,t=3,pt=0,l=5:1.4.1

I am using Raspberry pi as gateway with Arduino Uno. Arduino Mini Pro as node.
Please help me figure out what could be the issue. Any help is really appreciated. Thanks.!:smiley:

[GizMoCuz]

The distance sensor is supported in the beta version of Domoticz