This project lays out a framework for a home automation ecosystem, running on various ESP8266 chips and/or TPLink smart plugs.

The following features are included:

Setup

• Each device supports NTP time lookup for automatic clock synchronisation.
• Each device offers a WiFi manager. If it cannot connect to your wifi with known creds on boot, it will set itself up as an access point. Connect to the access point by joining its WiFi, and provide the SSID and pass for your own. After that, it will reboot and load these credentials by default.
• Each device can identify itself to Amazon alexa scans. Just ask Alexa to 'discover devices'.

Operation

• Each device can specify its own schedule of events to run automatically.
• Each device can respond to Amazon alexa on/off commands for manual override.
• Each device can establish its own mDNS entry to simplify finding it on a network.
• Each device can serve an HTML5 dashboard that leverages angular to provide control over its own status.
• Each device can describe its features and status to other dashboards.
• Each dashboard can consume the features of other devices and allow control of those too.
• Each dashboard can access a TP-Link account and control any smart plugs that are registered.

As such, there are 4 ways that each device can be controlled

1. Via the 'events' array of timed scheduled items (eg. Turn off at 4pm).
2. Via on/off voice commands issued to Amazon Alexa.
3. Via a web browser aimed at the device's mDNS or IP entry.
4. Via a web browser aimed at any device running this ecosystem, within the local network.

Types of device used:

My home projects use Adafruit Feather Huzzahs, and Wemos D1 Mini Pros.

Branches

The code is arranged so that only specifics.h changes between implementations. All branches are able to consume and control the features of all other branches.

• The master branch uses a specifics.h to support toggle devices - those with a sticky on/off state. Example use would be a lamp (as seen here: https://youtu.be/4WTB1Uiu2DI). Toggle devices show in the HTML5 dash as slide toggle buttons.
• The momentary branch uses a specifics.h that supports push-button devices - those where the device turns back off automatically after its task is completed. Examples in my house include the catfeeder, which responds to an 'on' command by dispensing food for 2 seconds then turns off. Momentary devices show in the HTML5 dash as a push button.
• The percentage branch uses a specifics.h that supports variable control devices - those where the device can be on/off or at multiple states between. Examples in my house include dimmable LED strings. Percentage devices show in the HTML5 dash as a range slider.
• The astronomy branch uses a specifics.h that supports percentage based devices, but additionally adds the position of the sun as a timer input. Examples in my house include the blinds, which allow a range of values between open and closed, but also set themselves to various positions upon noon/sunrise/sunset.

For an overview of the implementation and code, see: https://youtu.be/4WTB1Uiu2DI