Thanks for all the interest! I am targeting May 1st as the availability date of the wifi shield. I am currently putting together my first batch of about 65 shields. I'm also working to get the driver code simplified so that it's easier to use, as well as documenting it. And I have other hurdles I'm battling (website stuff, shopping cart, legal papers with the state, etc). Needless to say, I've never been this busy in my life, but at least I can say that I'm working on something that is fun and interesting to me! (even if my wife doesn't share this enthusiasm) ;D
Here are some pics of the final product:
The shield will bring up all the pins from the Arduino (a true plug-n-play shield solution). On the shield, there's an LED to indicate your connected (you can disable this via the jumper in the event you need the digital I/O for something else). There's also a jumper switch to choose between using INT0 and digital pin 8. INT0 is the preferred interrupt pin needed for the wireless connection, but we noticed that some of the LED shields use pins 2 and 3 for connection, so we provided an out in the event somebody wants to put a touchscreen shield on top. Lastly, the reset button has been propagated up so that it's easier to use.
Again, a brief review of some of the highlights of the WiFi:
- 802.11b access (1 and 2 mbps)
- infrastructure and adhoc mode
- WEP (64-bit, 128-bit), WPA/WPA2
- can fit into a ATMEGA168 (can't remember the approximate size off the top of my head) with room to spare for your own program
- currently, payload will have to be limited to 500 bytes or less (this is mostly due to the ATMEGA168's RAM size), however I'm experimenting with breaking up packets (this may come in a future release of code)
- SPI interface with 1 pin for interrupt
I'll do a couple more demo videos soon (especially showing the new final hardware), but for now, please refer to my previous demo videos to get a feel of what you could do:http://www.youtube.com/user/asynclabsinc
So I know the million dollar question is "how much is it?" After crunching the numbers, it looks like pricing will start at $55, with a 10% coupon for the first batch or orders I receive (65 shields in the first batch).
I really hope that others will find a use for the shield. I have ideas for other projects coming down the pipe, so this shield won't be the only thing to come out of my "lab."
I'm having issues getting my email notifier working in my shopping cart (http://asynclabs.com
), so if you are interested when it is available, please shoot me an email at firstname.lastname@example.org
, and I'll send out an email when the shield is ready to be purchased.