Hubitat Driver Development - Question

🚧 Developers
1

I'm making a switch driver.

Basic question, how do I check the switch state? I need to write an if statement, but want to check if it's on or off.

I know under an app, I subscribed to a switch and I can watch for the state changes.

I'm not sure how to do this?

2

Drivers can't "see" other devices. That's an Apps job.. and you know how unionized these Apps and Drivers are :smiley:

You can see the device you're acting as a driver for, and you can send Zigbee/Zwave/LAN commands to get that status.

You can create a Parent Child relationship and have several of YOUR children provide data to the Parent.

3

Sorry, I want to see the driver's current switch state.

4

https://docs.hubitat.com/index.php?title=Device_Object#currentValue

The name of the Attributes can be found:

Screen Shot 2020-06-01 at 2.00.01 PM

But of course, since you're writing the driver, you already know how you are spelling the Attributes. :smiley:

5

I'm very new to programming. Honestly, I don't know the syntax I need to see the state.

6

def currstate = device.currentState("switch2").getValue()

Something along that line, perhaps? :slight_smile:

I found it being used in a lot of the Community's driver code.. one example:

@aaron NOAA-Severe-Weather.groovy:

def result = (!modesYes && restrictbySwitch !=null && restrictbySwitch.currentState("switch").value == "on") ? true : false

to give you a better 'flavor' of the usage.

2 Likes
7

This also works:

restrictbySwitch.currentSwitch

1 Like