My zigbee creation has 4 analog channels, 4 digital outputs, and 2 digital inputs. And you can optionally add an arduino for infinite additional features.
If you recall the old Thingshield, it was an arduino shield that let you connect your arduino project to smartthings, over zigbee. It makes for endless possibilities, allowing you to create any zigbee device you like, very simply. Unfortunately, smartthings stopped making the Thingshield a few years ago.
I believe I now have a replacement, called “Mona Lisa”, based on the cc2530 zigbee chip from TI. It can pass 16 character strings to/from a smartthings device handler to/from the cc2530 device, which then passes the strings to/from a simple serial port that you can connect to 2 pins on your arduino (or anything else, like even a computer with a usb -serial adapter). That’s basically all the Thingshield did.
On top of that, it can also have some functionality without being attached to an …