Controller Developer

@qobouky You are correct, the Binary type sensors should be visible here.
I just revisited your sketch and I found a conflict on the allocated sensors id

#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define CHILD_ID_CO2 2

#define NUMBER_OF_RELAYS 3 // Total number of attached relays
void presentation()  {
present(CHILD_ID_HUM, S_HUM);
present(CHILD_ID_TEMP, S_TEMP);
present(CHILD_ID_CO2, S_AIR_QUALITY);

 for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
    // Register all sensors to gw (they will be created as child devices)
    present(sensor, S_BINARY);
  }
}

your relay sensor id should start from 3 or above.
I do not see the use of pin=RELAY_PIN.
You can present the status of your relay's, that can create V_STATUS on MyController

example:

#define RELAY_SENSOR 3 // Relay sensor starts at 3

void presentation()  {
....
MyMessage relayMsg(RELAY_SENSOR, V_STATUS);
for (int sensor=RELAY_SENSOR; sensor < (RELAY_SENSOR + NUMBER_OF_RELAYS); sensor++) {
    // Register all sensors to gw (they will be created as child devices)
    present(sensor, S_BINARY);
    relayMsg.sensor = sensor;
    send(relayMsg.set(loadState(sensor))); // current status of the relay
  }
}

NOTE: You have to update your relay code on setup and in receive too

@RagoTube looks like we need a gateway in a sensor network and with the help of gateway node-node communication can happen. The beauty of MySensors gateway is, you can use your gateway as a node.
I just updated my example shown here. Now the display node is a gateway node.

@RagoTube
Note: I didn't test this code. I believe it should work.

Sender node

#define MY_DEBUG
#define MY_RADIO_RF24
#define MY_NODE_ID 21

#define DISPLAY_NODE_ID 0

#define TEMPERATURE_SENSOR_ID 0

#include "MySensors.h"

// triggering interval
static const uint32_t trigger_ms = 10000; // 10 seconds

uint32_t lastTrigger = 0;
MyMessage msgGeneral(TEMPERATURE_SENSOR_ID, V_TEMP);

void setup() {
}

void presentation() {
  sendSketchInfo("Temperature node 1", "1.0");
  present(TEMPERATURE_SENSOR_ID, S_TEMP, "Temperature");
}

void loop() {
  if (millis() - lastTrigger > trigger_ms) {
    lastTrigger = millis();
    // set destination address
    msgGeneral.setDestination(DISPLAY_NODE_ID);
    
    // get temperature from your temperature sensor
    float lastTemperature = 0.0; // update from your sensor

    // send message to display node
    send(msgGeneral.set(lastTemperature));
  }
}

Display node (Gateway node)

#define MY_DEBUG
#define MY_RADIO_RF24
#define MY_GATEWAY_SERIAL

#define TEMPERATURE_SENSOR_ID 0
#define TEMPERATURE_NODE_ID 21

#include "MySensors.h"

float lastTemperature = 0.0;

void presentation() {
  sendSketchInfo("Display node / Gateway", "1.0");
}

void setup() {
}

void loop() {
}

void updateDisplay() {
  // update your display with "lastTemperature"
}

void receive(const MyMessage &message) {
  if (message.sender == TEMPERATURE_NODE_ID) { // message from temperature node
    if (message.sensor == TEMPERATURE_SENSOR_ID && message.type == V_TEMP) { // message from temperature sensor
      lastTemperature = message.getFloat();
      updateDisplay(); // update display
    }
  }
}

@RagoTube examples are there in,

• https://github.com/mysensors/MySensors/tree/development/examples
• https://github.com/mysensors/MySensorsArduinoExamples

The following sketch can help you to get your setup,
https://github.com/mysensors/MySensors/blob/development/examples/Node2Node/Node2Node.ino

@qobouky to get V_STATUS, you can do it two ways

1. (added automatically in MyController) Send the current status of the relays on your presentation block in your MySensors sketch
2. (add manually in MyController) - you can see S_BINARY sensors in MyController on this node. You can add a V_STATUS variable on each S_BINARY sensor in MyController

You will get a control option for your relays.

@qobouky seems you have problem with MyController and serial port communication. I do not see the node 0 too (gateway node).
can you check the MyController log file, is there any error? Also check the baud rate and port number of your serial device.

@qobouky your attachments are not available. can you please add it again?
do not you get your node by running discover on MyController?

@Yveaux said in serial, Ethernet to MQTT:

Of course, but MySensors MQTT gateway runs just as fine when connected over cabled ethernet, as when connected over wifi

I do not know that
Now on this tool, I do not see much benefit from ethernet to MQTT
Still, it is good from serial to MQTT.

@Yveaux Some people keep wants to use serial or ethernet for security reason. They do not want to use WiFi.
But still, they can enjoy the benefits of MQTT

• experiment different controllers via MQTT
• can have the serial gateways on the different places and connected to a controller (everything connected via MQTT)

Hi,

I have developed a new MQTT bridge to convert from serial, ethernet to mqtt.
Supports for MySensors.
You can have more than one serial ports and/or ethernet connections.
If you are interested in, https://github.com/mycontroller-org/2mqtt
Thanks!