@ Moshe Livne this one is only for some lights in garden with total consumption of 200w.
I'm using it now for about a week with no problem and temperature of relays is about 30c even tested it with load of 2100w for about six hours with no heating problems.

Hi everyone,
I have decided to make power strip where i can control each socket independently.

Parts needed:
1x Power strip from local shop €18
1x usb charger 500mah from aliexpress €1,30
1x arduino nano aliexpress €2,80
4x relays aliexpress €4
1x radio aliexpress €0,70
And some cables €2 +-

Sketch:

// Example sketch showing how to control physical relays. 
// This example will remember relay state even after power failure.

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

#define RELAY_1  3  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define NUMBER_OF_RELAYS 4 // Total number of attached relays
#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;

void setup()  
{   
  // Initialize library and add callback for incoming messages
  gw.begin(incomingMessage, AUTO, true);
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Stekkerdoos", "1.0");

  // Fetch relay status
  for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
    // Register all sensors to gw (they will be created as child devices)
    gw.present(sensor, S_LIGHT);
    // Then set relay pins in output mode
    pinMode(pin, OUTPUT);   
    // Set relay to last known state (using eeprom storage) 
    digitalWrite(pin, gw.loadState(sensor)?RELAY_ON:RELAY_OFF);
  }
}


void loop() 
{
  // Alway process incoming messages whenever possible
  gw.process();
}

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(message.sensor-1+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());
   } 
}

Next step is add led to each socket so that i know which one is on and maybe add buttons for manually control

@stephenmhall thank for your help.

Still no luck. Pir and distance sensors working but relay doesn't wont to work.

@stephenmhall How can i do that?

@ServiceXp I don't have the knowledge of arduino programming to do that :( i just started 2 days ago with arduino for dummies.
Can you help me with this one?

I didn't include gas code yet because i was thinking let the firs three work and than gas sensor.

Hi everyone,

I'm trying to combine 3 relays, PIR, gas and distance sensors together for my kitchen but i have no luck already spend 3 days on but nothing works.

Can someone help me please? Gas sensor is not necessary
Using: mysensors 1.4
Controller: Domoticz

Everything separately working fine but not together.

Here is my code with 3 relays, pir and distance sensors

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

#define CHILD_ID 8
#define TRIGGER_PIN  8  // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN     7  // 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.
unsigned long SLEEP_TIME = 5000; // Sleep time between reads (in milliseconds)

#define MOTOIN_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)

#define RELAY_1  4  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define NUMBER_OF_RELAYS 3 // Total number of attached relays
#define RELAY_ON 0  // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay
#define MOTION_CHILD_ID 5   // Id of the sensor child
#define RELAY_CHILD_ID 1   // Id of the sensor child 

boolean lastMotion = false;

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

void setup()  
{ 

gw.begin(incomingMessage, AUTO, true);
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Zet", "1.0");

  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID, S_DISTANCE);
  boolean metric = gw.getConfig().isMetric;
  
  pinMode(MOTOIN_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(MOTION_CHILD_ID, S_MOTION);
  // Fetch relay status
  for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
    // Register all sensors to gw (they will be created as child devices)
    gw.present(sensor, S_LIGHT);
    // Then set relay pins in output mode
    pinMode(pin, OUTPUT);   
    // Set relay to last known state (using eeprom storage) 
    digitalWrite(pin, gw.loadState(sensor)?RELAY_ON:RELAY_OFF);
}
}

void loop()      
{     
  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;
      
       // Alway process incoming messages whenever possible
  gw.process();
  // Read digital motion value
  boolean motion = digitalRead(MOTOIN_INPUT_SENSOR) == HIGH; 
  if (lastMotion != motion) {
    lastMotion = motion;     
    gw.send(msg.set(motion ? "1" : "0" ));  // Send motion value to gw
  }

  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(message.sensor-1+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());
   } 
}

LOG from serial monitor:

repeater started, id 1
send: 1-1-0-0 s=255,c=0,t=18,pt=0,l=5,st=ok:1.4.1
send: 1-1-0-0 s=255,c=3,t=6,pt=1,l=1,st=ok:0
read: 0-0-1 s=255,c=3,t=6,pt=0,l=1:M
send: 1-1-0-0 s=255,c=3,t=11,pt=0,l=3,st=ok:Zet
send: 1-1-0-0 s=255,c=3,t=12,pt=0,l=3,st=ok:1.0
send: 1-1-0-0 s=8,c=0,t=15,pt=0,l=5,st=ok:1.4.1
send: 1-1-0-0 s=5,c=0,t=1,pt=0,l=5,st=ok:1.4.1
send: 1-1-0-0 s=1,c=0,t=3,pt=0,l=5,st=ok:1.4.1
send: 1-1-0-0 s=2,c=0,t=3,pt=0,l=5,st=ok:1.4.1
send: 1-1-0-0 s=3,c=0,t=3,pt=0,l=5,st=ok:1.4.1
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm
Ping: 0 cm

Any help?