So, I have been building small projects here lately using the ESP8266 modules (32-bit SoC with Wifi, USD$2/each). A natural use for something so small and cheap is to use a handful of them to build a home security/monitoring system.

But before I go to that effort..

Is there an existing product for DIY home security/monitoring that is internet based, but does NOT rely on a cloud service (free or paid)?

I basically want this thing to text or email me when an "event" happens. Texts can be sent free via my cell provider's website, and emails are even simpler to originate.

So is there a system out there that does this, without requiring sign-up of any kind to a provider's website?

I mean, if the idea is home security, then why open up the the home/status to third parties?

Thanks!