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sendHeartbeat in binding?

tomkxy 22 Jan 2018, 19:21 last edited by

What is required in MySensors nodes to make the send heartbeat option in the binding actually work. Do I need to explicitly include code in my node implementations? What happens if my nodes are sleeping?
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skywatch 5 Jul 2018, 17:43 last edited by

Yes you need to add code - see here....

https://forum.mysensors.org/topic/4942/solved-no-heartbeat

As to what happens if a node is sleeping, I have no idea, sorry.
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To add another option to this thread. I have not yet used them but I am collecting these. They look like they are made for these types of sensors
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Hi @CyborgAndy many thanks for providing the binding update for MySensors 4.0.4! I upgrade my OpenHAB 3.4.4 a few minutes ago to 4.0.4 successfully with your binding update. I use a USB connected serial-gateway. The OpenHAB manual installation upgrade works perfect. I need to do afterwards the following steps in the Karaf console, to get the gateway online again, after the update: feature:install openhab-transport-serial feature:install openhab-core-io-transport-mqtt feature:install openhab-core-io-transport-serial-javacomm Many thanks again! kerberos
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@chrishiscox said in OH3 Serial Gateway Problem: I tried and tried with my serial gateway, and never got it to function porperly. The serial port was working I could see it and data, but OH3 just refused to recognise the data. After a week, I decided to abandon the serial and flashed a esp8266 attached the nRF to it and bobs my uncle as we say. It goes via MQTT, so takes a little more settting up but works fine. If you want more info I will dig out the pages I used to make it work. Hmmm, the pi OH is running on already has an active MQTT broker. So you got me thinking: Wouldn't it be possible to use the MQTT gateway instead of the serial gateway? It should be able to translate radio messages (Hope RF69 in my case) to mqtt messages which are already recognized by OH. I'll have to find a spare pi and try it.
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OpenHAB • 25 May 2020, 15:49 • syntacrsc 4 May 2022, 20:47

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@syntacrsc good job man
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OpenHAB • 30 Sept 2021, 10:24 • perIpI 1 Oct 2021, 09:19

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Replying myself after more reading and testing. *MQTT vs ETH probably is equivalent in my system, if the choice if given I think MQTT is preferred. *NRF24 or RFM69, maybe both as I already have a bunch of NRF24 radios home and can start build directly. *PC based MQTT could be an idea, but probably its as easy to work through an Arduino-example using the serial monitor in an Arduino-environment. My way forward will be: Remove the RPi-GPIO-gateway (I built a basic node and tested it, but could not communicate with the GW) and replace it with ESP8266-based WIFI/MQTT/Radio-gateway (one with NRF24 and eventually one with RFM69). I believe that will be an easier way into mySensors-world also limiting the amount of required Linux-related knowledge. It will be easier to debug the system from Arduino IDE-serial console. Ie start and confirm OH3 to MySensors-MQTT-gateway, then proceeding with sensor to gateway communication etc.
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OpenHAB • 8 Jul 2022, 11:27 • ben999 17 Jul 2022, 18:00

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17 Jul 2022, 18:00

@ben999 Check out Serial Protocol I have four Arduinos. Each has a different MY_NODE_IDs (I use 130, 131, 132, 133). Each has four sensors: moisture, humidity, temperature, and voltage each of which has a CHILD_ID: CHILD_ID_MOISTURE is 0 , CHILD_ID_HUMIDITY is 1, CHILD_ID_TEMPERATURE is 2, CHILD_ID_VOLTAGE is 3. When an Arduino makes a measurement, it sends that measurement to a unique MQTT topic. In the case of the Arduino with MY_NODE_ID of 130 that is sending the moisture measurement, that MQTT topic is mysensors_out/130/0/1/0/35 and the message is [something like] 760 (35 is the value type) Similarly, when a controller sends a command to a device (Arduino), the topic is unique. If you have two actuators with the same MY_NODE_ID and CHILD_ID (MQTT topic) there would be confusion as to what you want each actuator to do. Likewise, if two sensors had the same MQTT topic, how would the controller know how to handle the data.

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