This project is a simple adapter that turns Alexa's smart home capabilities into entry points to your own MQTT-based home automation system.

This device adapter takes care of device discovery and exposes home automation functionality as virtual devices.

Incoming events from Alexa Lighting APIs are interpreted based on the device they are targeting and then turned into MQTT messages sent to an MQTT broker.

This adapter is deployed on AWS Lambda.

It could easily be modified to do anything else instead of sending MQTT messages. If e.g. your home automation system is based on Pushbullet, Tasker AutoRemote or some kind of HTTP based protocol, it should take only a few minutes to fit your own needs.

If you run your own MQTT broker with a self-signed certificate, make sure it's available in /certificates/ca.crt, so it can be read my /mqtt.js.

You will also need to create a file /env.js that holds your MQTT server configuration.

// env.js

module.exports = {
    mqtt: {
        username: 'matt',
        password: 'mySecretPassword',
        host: 'test.mosquitto.org',
        port: '8883',
    }
};

Run npm install to install all dependencies locally. Modify Makefile to point to the correct Lambda function in your AWS account. You can then run make deploy to automatically upload your code to AWS and use Alexa to test your changes.

For local development, you can run node index2.js to see if your host configuration works.