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| mqtt_for_digitalstrom [29.01.2018 10:03] – [MQTT for digitalSTROM] Pascal Suter | mqtt_for_digitalstrom [29.01.2018 10:06] – [what I want to add] Pascal Suter |
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| ===== what I want to add ===== | ===== what I want to add ===== |
| While the existing MQTT bridge is fine for changign room states, calling scenes etc, we need something that can enable us to react faster to events that happen on the DS bus. My Idea is, to create an MQTT bridge that connects via the VDC-API to emulate virtual digitalSTROM devices. I could then place a virtual dimmer into a room and set a value of 100% for Scene 1, 75% for Scene 2, 50% for Scene 3, 25% for Scene 4 and of course 0% for off. Now i can publish the value canges for this dimmer via MQTT. The nice thing about this solution is, that the DSS will PUSH status changes to the API and hence to MQTT and we don't need to PULL it as we do with the DSS-API variant. | While the existing MQTT bridge is fine for changing room states, calling scenes etc, we need something that can enable us to react faster to events that happen on the DS bus. My Idea is, to create an MQTT bridge that connects via the VDC-API to emulate virtual digitalSTROM devices. I could then place a virtual dimmer into a room and set a value of 100% for Scene 1, 75% for Scene 2, 50% for Scene 3, 25% for Scene 4 and of course 0% for off. Now i can publish the value canges for this dimmer via MQTT. The nice thing about this solution is, that the DSS will PUSH status changes to the API and hence to MQTT and we don't need to PULL it as we do with the DSS-API variant. |
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| luckily there is a nice socket-based API for virtual devices available so we can program a simple node.js script to do that. | luckily there is a [[http://plan44.ch/opensource/vdcd/?lang=e|nice socket-based API for virtual devices]] available from [[http://plan44.ch|plan44]] a great contributor to the DSS environment. My plan is ot use node.js to implement an MQTT bridge using this api via a vdcd. |
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| The downsides of this approach are: | The downsides of this approach are: |