cellphone

100 Articles

Cell Phone Triggered Fireworks

February 17, 2009 by 68 Comments

remote_trigger

[Mr. Hasselhoff] is using a disposable cell phone to trigger his fireworks. He has wired into the speaker leads for the speaker phone. When the phone rings, the current sets off a thyristor allowing for a battery pack to be discharged into a rocket fuse. These fuses heat up and ignite, so you can use them to light fireworks fuses pretty easily. This is pretty simple and cheap, considering the price of the cell phone was only $10. His next idea was to have it recognize dial tones and set individual fuses off, but that would require a microcontroller and a much more complex hack. At that point, you might as well just build a fully fledged wireless fireworks launching system and possibly add rocket launching abilities too.

[thanks Adam]

Hackit: What Did You Get?

December 25, 2008 by 88 Comments

adp1

It’s the season of gift giving. Did you get anything interesting/hackable? What will you work on next?

We gave ourselves an Android Dev Phone 1 (ADP1). We hadn’t really considered getting a G1 until the ADP1 was announced… It’s actually a lot of fun to use as our primary phone. Our favorite app so far is connectbot, the SSH client. The interface is really smart, way better than all of the iPhone clients.

What did you get?

T-Mobile G1 Teardown

December 19, 2008 by 11 Comments

g1teardown

In our Dev Phone 1 excitement last week, we somehow overlooked phoneWreck’s teardown of the T-Mobile G1. The complex slider mechanism is certainly worth looking out. One of the major oddities they point out is the inclusion of two vibration motors. One is mounted next to the SIM on the mainboard. While the other is mounted in the frame next to the earpiece. We wonder what was gained/solved by using two. The phone also includes a digital compass module. We’d like a more detailed explanation of how the Xilinx CPLD is used. From this article in 2006, it seems HTC uses them to generate custom clock signals and switching off devices for power management.

Inside Nokia’s Hardware Damage Labs

December 3, 2008 by 11 Comments

[vimeo 2310654]

Like everybody, we sometimes get a little frustrated with our cellphones. Probably one of the most annoying things is when we drop our phones once and they stop working. At Nokia’s hardware damage labs in San Diego, they physically test their phones for extreme uses. They test things like flip tension, water resistance, and even UV resistance. Recently, the folks over at MobileCrunch were given a tour of these labs and were nice enough to post an in-depth article about what they saw. In addition to the impact testing video above, there are many more videos posted that demonstrate the tests they perform.

Iphone-dev Team 3G Soft Unlock Coming Soon

November 19, 2008 by 11 Comments

[vimeo 2291914]

The iphone-dev team has officially stated “all that remains is implementation“. They’ve developed all the pieces they need to perform a software unlock for the iPhone 3G, now it’s just a matter of putting them together in user friendly fashion. They’ve managed to run unsigned code on the baseband, developed custom AT tools, and are now showing injection of a background task. They will combine all of these techniques to override the carrier lock baseband code. As usual, they warn against performing any official firmware updates to the phone.

Android Source Code Released

October 21, 2008 by 14 Comments

[youtube=http://www.youtube.com/watch?v=7Y4thikv-OM&fmt=18]

Google has officially released the Android source code. While the T-Mobile G1 is being released tomorrow—some already have it—it is just one Android device. The availability of the source means that the platform could be port to almost any device. It’s a complete embedded Linux package and we’ve already seen it running on the N810. We can’t wait to see what hacks come out of this.