GPIO

This trigger provides your flogo application the ability to start a flow upon a GPIO pin

Installation

flogo install github.com/jvanderl/flogo-components/trigger/gpio

Link for flogo web:

https://github.com/jvanderl/flogo-components/trigger/gpio

Schema

Outputs and Endpoint:

{
  "settings": [
    {
      "name": "interval",
      "type": "int",
      "required" : true
    }    
  ],
  "output": [
    {
      "name": "state",
      "type": "number"
    }
  ],
  "handler": {
    "settings": [
      {
        "name": "gpiopin",
        "type": "number",
        "required" : true
      },
      {
        "name": "state",
        "type": "number",
        "required" : true
      },
      {
        "name": "pull",
        "type": "boolean",
        "required" : true
      }
    ]
  }
}

Settings

Setting	Description
interval	time between pin scans in Millisecond

Ouputs

Output	Description
state	The atual reading of the pin (0 of 1)

Handlers

Setting	Description
gpiopin	GPIO pin to monitor
state	State to monitor, 0 for low, 1 for high

Example Configuration

Triggers are configured via the triggers.json of your application. The following is and example configuration of the GPIO Trigger.

Only once and immediate

Configure the Trigger to run a flow when pin 7 becomes high, check every 0.5 seconds

{
  "name": "gpio",
  "settings": {
    "interval": "500"
  },
  "handlers": [
    {
      "actionId": "local://testFlow",
      "settings": {
        "gpiopin": "7",
				"state": "1",
        "pull": "true"
      }
    }
  ]
}