All sold I have the Interface I generally just don't use as my fingers are too busted to use a soft touch interface with any repeatable accuracy, though I loved using it, just need something with mechanical buttons! also have an IoT Relay I got for the 1515 but never used as I hooked it all up differently. Any realistic offer is fine, not gunna give them away but not looking to get rich either, rather see them being used than sitting here collecting dust.
