@ZsoltZombori
Exactly that was a problem with my system too. When I had it connected to the computer using the serial cable everything would just run fine but as soon as I removed the serial cable from computer and let it run on its own with the power supply connected with a DC jack, everything would just fall apart the LED's would go dim and that's when I discovered the problem of the ground but you already have all the grounds connected so I'm out of clues here.
I would suggest you to check the power supply connections again with a multimeter to make sure that everything is connected properly.

@ZsoltZombori

I had a problem of the LED on pin 13 glowing dim after some time of system running fine when I had 2 sensors connected to the Arduino and sensors had their own separate 5V power supply. So, I had a 5V power supply separate from the Arduino's 5V and that was supplying current to those sensors.

I had the sensor's data pins connected to Arduino but I didn't have GND of power supply and Arduino connected. I solved the problem by connecting the GND of power supply to the GND of the Arduino.

See if that is the case with you.

Hope this helps.

@sundberg84 As far as I understand by looking at the code you have sensor on the same node which is requesting the pulse count from the GW??

OR you have reed switch on this node and sensor is on some other node? In the debug prints do you see a READ message in the serial monitor for your node which has reed switch?

With me, I am sending the request() from node 1 to node 2. I can see SEND message in serial monitor of node 1 and READ message in the serial monitor of GW and also a SEND message in GW serial monitor and READ message in node 2. So the message is reaching node 2 successfully but my node 2 is not sending any reply to that message.

So, node 1 is sending to GW, GW is receiving it and sending it to node 2, node 2 is receiving the message but node 2 is not replying. Is this what is supposed to happen? OR node 2 is actually supposed to send a reply back to node 1?

@sundberg84
Can you share your snippet of code where you have request() function?

@sundberg84
OK. And does your request() function looks just like mine?
So, are you requesting V_VAR1 from the node?

@sundberg84
I have void receive() in node 2. But to code something I need to know what I am listening to.

Is that just a bool message with the state of the switch saying its ON or OFF??

What do you have in the void receive() function you are using?

Got it after some trial and error with getters and setters.

In case someone needs. I did following.

MyMessage msg();  //Create a blank MyMessage instance. Do this before void setup()

then when you want to send the message. Create a message on the fly like following.

1. msg.setType(2);
2. msg.setSensor(1);
3. msg.setDestination(2);
4. send(msg.set(1));

This is what I am doing above:

1. set message type ex. V_LIGHT is 2. Look at API for more
2. Set sensor child ID of the sensor you want to change status of
3. This is the destination node ID which has the sensor you are trying to reach
4. Send the message just like you would usually.

Hope this helps someone

Hello all,

I am requesting the status of a switch with child ID 1 from another sensor node ID 2.

I used request(uint8_t childSensorId, uint8_t variableType, uint8_t destination);
In my case variable type is V_LIGHT so its request(1, 2, 2).

I can see the sensor node 1 sending message and sensor node 2 receiving message in the debug log but sensor node doesn't send anything back to the requesting node.

Now what kind of message should I expect from the node? OR I should write some code in the receiving node to create a response?

Thank You

Hello all,

I have pH sensor on node ID 1 and valve that controls pH on node ID 2. Now when the pH level falls below some value I want to open the valve. How can I send message from one node to other to open the valve

OR

How can I send message to domoticz from node ID 1 to open the valve on node ID 2?

Thank You,
Vaibhav

@chrille
I noticed it. Made the change and now it works. Thanx for your help.