Hi.
We have built a model using Mobile Phones and Sun SPOTs which completely removes the distance barrier of the Sun SPOT communication. I have already given a detailed account of the project in my blog entry Sun SPOT and mobile Controlled Wireless System.
We have made a small video of the project. Have a look.
Note - I am really sorry if Mr. Vasusen Patil sounds really scary doing the narration part. He will try and improve for our next videos. Or we will try and find a better voice ;-)
Cheers!!
This is pretty cool work! Nice of you to put it up on YouTube.
Did you build a hardware decoder for AT commands sent from the mobile phone or did you program it into the SPOT?
Cheers
Shashank
Posted by Shashank Shekhar on October 10, 2008 at 04:30 AM PDT #
Hi Shashank.
We have used DTMF Decoder IC in the hardware circuit. Whenever a key is pressed in a mobile phone, a unique frequency is generated which is received at the speaker connector of the mobile. The dtmf decoder IC is connected there and it generates a unique 4 bit output for each key pressed.
0000 to 1100 - 1 to 12 keys.
This output is given to D0 to D3 pins of Sun SPOT. The program in Sun SPOT listens to the IO Pins and if change is seen, then a new thread is launched and a job is performed.
I have explained this in more detail here: http://blogs.sun.com/jaysblog/entry/sun_spot_and_mobile_controlled
Hope this is useful.
Cheers!
Posted by Jay Mahadeokar on October 10, 2008 at 06:01 AM PDT #