Zigbee Arduino shield / serial bridge

I’m a Smartthings / Hubitat guy, but thought this might interest you all. I made a little $20 zigbee board called the MonaLisa that can interface between simple serial commands and zigbee, much like the old ThingShield. It can be used as an arduino shield, or with anything else that talks serial, or just by itself (it has 2 digital inputs, 4 digital outputs, and 4 analog inputs of its own). Now it even supports mapping of the zigbee mesh.
Have a look!