Small delay until I complete another related project to build an ESP8266 development board (https://hackaday.io/project/3352-esp8266-development-pcbs) that will allow me to program the ESP8266... The new development board also allows for testing devices while walking around as their portable...

In the mean time I'm writing some code and designing some more sensor modules including a WiFi Sounder (the actual alarm part @ ~95db). Also working on the piezo sensor and trying to achieve the results of my early work...

Mike