Node RED Smart Home Control
Nutzung des kostenlosen/spendenfinanzierten Service Node-RED Smart Home Control zur Anbindung an Alexa (und Google Assistant bzw. Google Home).
- Account Anlegen auf https://red.cb-net.co.uk/new-user und Email Verifizierung durchführen.
- In Alexa App den Skill
Node-RED Smart Home Controlvon cb-net hinzufügen und mit den in Schritt 1 verwendeten Zugangsdaten verbinden. - Über den Node-RED Palette Manager die Nodes
node-red-contrib-alexa-smart-homeinstallieren.
Ein CCU Value Node wird auf den Datenpunkt STATE des Kanals 1 eins Fensterkontakts konfiguriert:
Dieser Node gibt je nach Zustand des Fensterkontakts bool true oder false als msg.payload aus. Der Alexa Service erwartet jedoch folgende msg: {"acknowledge": true, "payload": {"state": {"contact": "DETECTED"}}} bzw. {"acknowledge": true, "payload": {"state": {"contact": "NOT_DETECTED"}}}, es ist also eine Transformation der Nachricht notwendig damit diese vom Alexa Node genutzt werden kann. Dies kann mit einem Switch und 2 Change Nodes durchgeführt werden:
Am Ende des Flows kommt der Node alexa smart home v3 state zum Einsatz:
[{"id":"bb53c7a1.97ef48","type":"ccu-value","z":"6946acad.eb0ca4","name":"","iface":"BidCos-RF","channel":"JEQ0001234:1 Fenster Hobbyraum","datapoint":"STATE","mode":"","start":true,"change":true,"cache":true,"queue":false,"on":0,"onType":"undefined","ramp":0,"rampType":"undefined","working":true,"ccuConfig":"","topic":"${CCU}/${Interface}/${channel}/${datapoint}","x":140,"y":100,"wires":[["9ca4689c.4bce18"]]},{"id":"59e1c4a.2fe113c","type":"alexa-smart-home-v3-state","z":"6946acad.eb0ca4","conf":"","device":"10277","name":"Fenster Hobbyraum","x":800,"y":100,"wires":[]},{"id":"9ca4689c.4bce18","type":"switch","z":"6946acad.eb0ca4","name":"true / false","property":"payload","propertyType":"msg","rules":[{"t":"true"},{"t":"else"}],"checkall":"true","repair":false,"outputs":2,"x":350,"y":100,"wires":[["57e1e99e.5fc1f8"],["7bb89d62.7f3b04"]]},{"id":"57e1e99e.5fc1f8","type":"change","z":"6946acad.eb0ca4","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"{\"state\":{\"contact\":\"DETECTED\"}}","tot":"json"},{"t":"set","p":"acknowledge","pt":"msg","to":"true","tot":"bool"}],"action":"","property":"","from":"","to":"","reg":false,"x":540,"y":80,"wires":[["59e1c4a.2fe113c"]]},{"id":"7bb89d62.7f3b04","type":"change","z":"6946acad.eb0ca4","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"{\"state\":{\"contact\":\"NOT_DETECTED\"}}","tot":"json"},{"t":"set","p":"acknowledge","pt":"msg","to":"true","tot":"bool"}],"action":"","property":"","from":"","to":"","reg":false,"x":540,"y":120,"wires":[["59e1c4a.2fe113c"]]}]
