I made a tablet app, using MIT's AppInventor, that connects to an arduino via bluetooth. Using Relays, I can control outlets from a distance. I use this setup at parties for an quick and easy DIY light show! The end product is quite impressive!
See it working in action HERE
I have updated a few images from the form and the blocks editor from the AppInventor. Clearly, the app has changed a lot since I first started developing it, and a few new features have been added. For starters, I have three cycling functions. One of them slowly goes through from left to right, and then back left. The next cycle goes quickly through the relays from left to right, and back to left. The last cycle button just goes quickly from left to right. I created a Flash button, which, like the name sounds, flashes all of the relays on and off. They all looked really cool on my house this winter with lights strung all over the place.
The random function is not working, and I would be open to any suggestions. I would like it to pick a random byte (number 0-14) and random delay (0-5 seconds).
As far as hardware is concerned, nothing has been changed. I am using an 8 Channel relay module, and a small bluetooth receiver.
they can be found here respectively:RELAYBLUETOOTH
Thanks again! Let me know if anything needs to be updated.