About This Project
how about if you can control your cayenne actuator with google assistant by saying Ok cayenne, Turn on the bedroom lights.
this is a simple project that you can use and change accordingly to your own need.
the project is based on the project made by @adam Using Node-RED as a Local Fallback Server and Madhan Sundaram’s “Hey Google Turn on Front light” — set up and code | by Madhan Sundaram | Medium.
Go through both the topics and get your device ready for the project.
Important points:
-
make sure to change the node-red password Redirecting…
-
to Restart nginx use
sudo service nginx restart -
have a google account linked to IFTTT account.
The basic flow of this project:
Google Home ----> IFTTT ----> Dataplicity ----> Local RPi (Nginx)—> NodeRED ---->cayenne(node-red device)-----> trigger -----> cayenne(device to controlled) .
Follow Madhan Sundaram’s tutorial till you get msg.payload from the HTTP endpoint.
Next, follow @adam tutorial till you can subscribe and publish messages to cayenne.
Once you are done edit the node-red flow to look like this:
[{"id":"e4339793.2daab8","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"efa6b635.257cc8","type":"http in","z":"e4339793.2daab8","name":"IFTTT","url":"/incoming1","method":"post","upload":true,"swaggerDoc":"","x":300,"y":200,"wires":[["f82bea64.c6eaa8","32cf3092.1d63e","d039f13b.33a94"]]},{"id":"f82bea64.c6eaa8","type":"http response","z":"e4339793.2daab8","name":"","statusCode":"","headers":{},"x":540,"y":200,"wires":[]},{"id":"32cf3092.1d63e","type":"debug","z":"e4339793.2daab8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","x":540,"y":280,"wires":[]},{"id":"5f85fc19.28c6b4","type":"mqtt out","z":"e4339793.2daab8","name":"Cayenne Output Channel 2","topic":"v1/username/things/clientID/data/3","qos":"0","retain":"true","broker":"c5428ca1.65f26","x":500,"y":600,"wires":[]},{"id":"7bb5c0ad.6fcdf","type":"inject","z":"e4339793.2daab8","name":"Setup","topic":"","payload":"","payloadType":"str","repeat":"","crontab":"","once":true,"onceDelay":"","x":130,"y":380,"wires":[["75fcefd1.e8948"]]},{"id":"75fcefd1.e8948","type":"function","z":"e4339793.2daab8","name":"Set Global Variables","func":"global.set(\"username\",\"See Post\");\nglobal.set(\"clientID\",\"See Post\");\n\nreturn msg;","outputs":1,"noerr":0,"x":440,"y":380,"wires":[["491e916a.ec494"]]},{"id":"491e916a.ec494","type":"debug","z":"e4339793.2daab8","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","x":790,"y":380,"wires":[]},{"id":"d039f13b.33a94","type":"change","z":"e4339793.2daab8","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"digital_sensor,d=1","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":320,"y":500,"wires":[["5f85fc19.28c6b4"]]},{"id":"c5428ca1.65f26","type":"mqtt-broker","z":"","name":"","broker":"mqtt.mydevices.com","port":"1883","clientid":"xxxxx","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closePayload":"","willTopic":"","willQos":"0","willPayload":""}]
the above flow publishes a
value 1 on channel 3 to create a digital sensor widget.
IFTTT screenshots:
What’s Connected
The device you want to control using google assistant
Triggers & Alerts
Trigger plays a major role in this. Set a trigger to turn ON the actuator on your arduino cayenne device whenever a value 1 is received on channel 3 on the node-red cayenne device.
Scheduling
Dashboard Screenshots
Node-red cayenne device with digital sensor widget on channel 3
Arduino cayenne device with red light actuator widget which you want to control.
Photos of the Project
(Take some pictures of your project functioning in the wild!)
Video
##Debug:
Check the run counter in IFTTT to verify that the trigger is running.
Add a debug node in the node-red to check if msg.payoad is received from HTPP endpoint.
check the cayenne trigger counter to verify the trigger is running.