aREST

There is currently support for the following device types within Home Assistant:

• Binary sensor
• Sensor
• Switch

Binary sensor

The arest binary sensor platform allows you to get all data from your devices (like Arduinos with an ethernet/Wi-Fi connection, the ESP8266, and the Raspberry Pi) running the aREST RESTful framework.

To use your aREST binary sensor in your installation, add the following to your configuration.yamlThe configuration.yaml file is the main configuration file for Home Assistant. It lists the integrations to be loaded and their specific configurations. In some cases, the configuration needs to be edited manually directly in the configuration.yaml file. Most integrations can be configured in the UI. [Learn more] file. After changing the configuration.yamlThe configuration.yaml file is the main configuration file for Home Assistant. It lists the integrations to be loaded and their specific configurations. In some cases, the configuration needs to be edited manually directly in the configuration.yaml file. Most integrations can be configured in the UI. [Learn more] file, restart Home Assistant to apply the changes. The integration is now shown on the integrations page under Settings > Devices & services. Its entities are listed on the integration card itself and on the Entities tab.

# Example configuration.yaml entry
binary_sensor:
  - platform: arest
    resource: http://IP_ADDRESS
    pin: 8

Accessing the URL http://IP_ADDRESS/digital/PIN_NUMBER should give you the state of the pin inside a JSON response as return_value.

$ curl -X GET http://192.168.0.5/digital/9
{"return_value": 0, "id": "office1", "name": "Office", "connected": true}

An example for Pin 9 inspired by the command above could look like this:

# Example configuration.yaml entry
binary_sensor:
  - platform: arest
    resource: http://192.168.0.5/digital/9
    pin: 9
    name: Office

Sensor

The arest sensor platform allows you to get all data from your devices (like Arduinos with a Ethernet/Wi-Fi connection, the ESP8266, and the Raspberry Pi) running the aREST RESTful framework.

To use your aREST enabled device in your installation, add the following to your configuration.yamlThe configuration.yaml file is the main configuration file for Home Assistant. It lists the integrations to be loaded and their specific configurations. In some cases, the configuration needs to be edited manually directly in the configuration.yaml file. Most integrations can be configured in the UI. [Learn more] file:

# Example configuration.yaml entry
sensor:
  - platform: arest
    resource: https://IP_ADDRESS
    monitored_variables:
      temperature:
        name: temperature
    pins:
      A0:
        name: Pin 0 analog

The variables in the monitored_variables array must be available in the response of the device. As a starting point you could use the one of the example sketches (eg. Ethernet for an Arduino with Ethernet shield). In those sketches are two variables (temperature and humidity) available which will act as endpoints.

Accessing one of the endpoints (eg. http://192.168.1.10/temperature) will give you the value inside a JSON response.

{"temperature": 23, "id": "sensor01", "name": "livingroom", "connected": true}

The root will give you a JSON response that contains all variables and their current values along with some device details.

{
   "variables" : {
      "temperature" : 23,
      "humidity" : 82
   },
   "id" : "sensor01",
   "name" : "livingroom",
   "connected" : true
}

return_value contains the sensor’s data in a JSON response for a given pin (eg. http://192.168.1.10/analog/2/ or http://192.168.1.10/digital/7/).

{"return_value": 34, "id": "sensor02", "name": "livingroom", "connected": true}

Switch

The arest switch platform allows you to toggle pins of your devices (like Arduino boards with an Ethernet/Wi-Fi connection, ESP8266 based devices, and the Raspberry Pi) running the aREST RESTful framework.

To use your aREST enabled device with pins in your installation, add the following to your configuration.yamlThe configuration.yaml file is the main configuration file for Home Assistant. It lists the integrations to be loaded and their specific configurations. In some cases, the configuration needs to be edited manually directly in the configuration.yaml file. Most integrations can be configured in the UI. [Learn more] file:

# Example configuration.yaml entry
switch:
  - platform: arest
    resource: http://IP_ADDRESS
    pins:
      11:
        name: Fan
      13:
        name: Switch
        invert: true

If you want to use custom functions, then add the following to your configuration.yamlThe configuration.yaml file is the main configuration file for Home Assistant. It lists the integrations to be loaded and their specific configurations. In some cases, the configuration needs to be edited manually directly in the configuration.yaml file. Most integrations can be configured in the UI. [Learn more] file:

# Example configuration.yaml entry
switch:
  - platform: arest
    resource: http://IP_ADDRESS
    name: Office
    functions:
      function1:
        name: Light Desk

You can still switch your pins with a web browser or a command line tool. Use the URL http://192.168.1.10/digital/8/1 to set pin 8 to high/on, the JSON response will give you the feedback.

{"message": "Pin D8 set to 1", "id": "sensor02", "name": "livingroom", "connected": true}