Garadget is affordable, easy-to-install openHAB compatible open source garage door controller.
After successfully funded and fulfilled crowdfunding campaign earlier this year it is now available for purchase at Tindie and other fine online retailers.
I’m a creator of the product and will be happy to answer any question and address any concerns.
I just installed mine yesterday, it took about an hour start to finish to get it set up and working with openHAB2 thanks to @watou’s excellent binding. It is great to be able to see when the door is activated.
Denis will have a better answer, but I know from the Garadget community forum that you can add a device to your Garadget that takes the place of the input from the light sensor, and the Garadget can be made weatherproof as long as the laser+light sensor aren’t needed.
As I mentioned - the device I linked to was only for illustrative purposes. I was trying to show you the style. There are many wireless contact switches supporting many different protocols and technologies. I evidently gave a poor illustrative link of the type of wireless contact device I was hoping could be incorporated.
Do you think there is some similar that might provide open/close information?