The PRLAY-WH01-CK wall-mounted controller is down from $300 to $30 and would make a great controller if it weren't locked into the Wink ecosystem. This is a long-shot question -- anyone pried on of them open (pried in the software sense - no physical objects were harmed in ...)
https://www.walmart.com/ip/Wink-Relay/45628943. Alas mine is now for demo purposes only