I am just getting started but have used openwrt on routers before. I purchased
a couple of Seagate Dockstars and installed openwrt.
Text to speech works with USB speakers plus Festival light (flite).
IP camera server works with USB webcam plus mjpeg-streamer. Zoneminder running
on an Ubuntu PC manages the camera. The camera has a built-in microphone but it
is not working so far.
Installing this in my garage will require a USB WiFi dongle since I have no
plans to run Ethernet there.
I plan to use X10 motion/windows/door sensors to trigger Zoneminder camera
recording. The video motion detection built-in to Zoneminder produce false
triggers (for example, clouds passing over) so motion/contact sensors should
work better.
Another Linux platform I saw today is the Chumby and its Best Buy offspring.
They run Linux, color LCD/touchscreen, speaker, and WiFi. The $99 Infocast 8"
is good deal but it is a Black Friday sale price so it may be hard to get.
Sounds ideal for a bedside lighting/security screen.
I could use the smaller 3.5" Infocast in place of the dockstar. It has WiFi and
speakers built-in. I wish I saw this before buying the dockstars. There is so
much low cost consumer gear running Linux that is it hard to keep up.
This web site contains useful Chumby/Infocast information such as internal
headers to access extra digital I/O lines, I2C, internal USB ports, etc. Bunnie
Huang is the Chumby and Infocast hardware designer.
http://www.bunniestudios.com/blog/mmauka