Board Advice for Access Point + CO/Smoke Detector

Projects General Guidance
1

Hi all,

I have been trying to locate a wireless access point that also doubles as a CO/Smoke Detector, and would ideally connect one of the several home automation API's (such as NEST).

So far though, no luck. I got to thinking that I might be able to make one. What boards would you guys recommend that I go with for this project? Here are some of the features that I would like to implement:

  • Wireless Access Point / WiFi repeater
  • CO/Smoke Detection
  • Speaker for alerts
  • Power over Ethernet to power the device primarily with a rechargeable 9V battery. The 9V battery should basically act as a battery backup in case POE goes down.

Software-wise, I would want:

  • Pre-set IP address
  • When user connects to router (or switch), the user goes to the IP address and can re-configure the device for WAP or Repeater
  • Text to Speech for custom alerts (this would be nice to have)
  • Ability to also connect to a home automation device such as the NEST.
2

Dredging up an oldie (for my first post too) but I'm curious if the original poster had any luck locating something like this, or for that matter, building one?

Thanks!