Homekit shows unsupported after pairing

Hey guys,
I am new to Oh2 I added the following in respective files.All I wanna do is control(on/off and brightness)a led connected between ground and gpio pin 21 using homekit but unable to do so.

home.items

Switch LED “Lounge Lamp” [ “Lighting” ] { gpio=“pin:21” }

home.sitemap

Switch item=LED

I have added the homekit plugin in Oh2. My ios device pairs with the oh2 but once it is paired it shows “not supported”
Please let me know if the binding is incorrect with the necessary rectifications.
Thanks in advance!

I got the same here. Did you try with the last binding’s version ?

Me too have the Same problem, it worked for a day…