NES Console To Cartridge Security In Depth

January 20, 2010 by 45 Comments

[Segher] has reverse engineered the hardware and command set for the NES CIC chips. These chips make up the security hardware that validates a cartridge to make sure it has been licensed by Nintendo. Only after authentication will the console’s CIC chip stop reseting the hardware at 1 Hz. The was no hardware information available for these chips (go figure) so [Segher] had to do some sleuthing with the tools at hand which include some rom dumps from the chip pairs. He was nice enough to share his findings with us. We’re betting they’re not of much use to you but we found it an interesting read.

[Thank ppcasm]

[Photo credit: Breaking Eggs and Making Omelets]

NXT Hacks: Tanks And Heaters

January 20, 2010 by 8 Comments

Here’s a double-dose of Lego NXT goodness; a robotic tank and an automatic aquarium heater.

The image to the left is a robotic tank powered by the popular Lego Mindstorms NXT kit. The brains rest inside of a tube, including the controller brick, ultrasonic range finder, a gyroscope, and a compass. Two sets of treads surround each edge of the tube making us wonder which end is up? We’ve embedded a video of this beast after the break. You’ll see that the tank is incredibly agile in this configuration.

To the right is an aquarium heater. [Dave’s] kid were growing some tiny water dwellers which we’ve always know as Sea-Monkeys. The problem is that the tank needs to be between 72-80 degrees Fahrenheit for the little shrimp to thrive. He dug out his NXT controller and paired it up with the Lego temperature sensor and a dSwitch relay. This setup monitors the Aquarium for temperatures between 72-78 degrees and switches a lamp on an off to regulate the temperature. This keeps his kids and the stagnant pool happy.

Now that we’ve whet your appetite for NXT check out the wiimote operated NXT Segway and the NXT Sudoku solver.

Continue reading “NXT Hacks: Tanks And Heaters” →

Hey Man, SSH To My Guitar And Setup The Multitouch

January 20, 2010 by 37 Comments

The Misa Digital Guitar is a digital music controller like we haven’t seen before. The body, machined out of ABS, looks like a guitar. The player puts theirs hands in the same places you would on a guitar but the lack of strings make it something different.

The left had manipulates inputs in the form of 144 sensors, six in each of the twenty-four fret positions. The right hand doesn’t strum, but uses a multitouch screen to control the inputs. The UI looks solid, something you’ll have to see for yourself after the break. Tieing this all together is an AMD Geode processor running Gentoo Linux. That means this is open source and begging you to make it do your bidding.

Continue reading “Hey Man, SSH To My Guitar And Setup The Multitouch” →

SheevaPlug PBX

January 20, 2010 by 25 Comments

[youtube=http://www.youtube.com/watch?v=RIcTWya7TQA&feature=player_embedded]

[Greg] has been working on a version of Debian/ FreePBX/ Asterisk for people to be able to drop onto a SheevaPlug. If you haven’t seen it, the SheevaPlug is a tiny computer housed in a wall plug. They made some waves when they were announced last year, and we’ve spoken of them several times. [Greg] is offering up the operating system in a pre configured format for SD cards so you can just download it and drop it in your SheevaPlug. Yeah, there’s a little bit of work to do before it will boot, which you can see in the video above.  Thanks for sending this in [Greg], keep up the good work.

Servo Hacked Linear Actuator

January 19, 2010 by 22 Comments

[AntonB] has modified a servo into a powerful linear actuator (think: changing rotational motion into linear motion). The process is simple enough, modify a servo for continuous rotation and then add the custom built actuating shaft. You do of course lose the precision of the servo, but a small price to pay to be able to lift ~20 pounds straight up. Inspiration for such a cheap solution came from his Planetary Surface Exploration Rover. Check out a video of both after the break.

[Thanks Eric]

Continue reading “Servo Hacked Linear Actuator” →

Cell Phone Based Car Starter, Another Take

January 19, 2010 by 56 Comments

[Dave] Had been working on a cell phone activated remote start for his car for a while when we posted the GSM car starter. While both do carry out the same job, we feel that there is enough good information here to share. He’s gone a pretty simple way, by connecting the vibrator motor leads to a headphone jack. He’s using that signal to then activate the remote start by setting off an extra fob. Though it is amazingly simple, this version does have an advantage. As [Dave] points out, his cell phone has several features which could be utilized to automate some of his car starts. He can set alarms as well as recurring calendar events to get his car started without his interaction. Lets just hope he doesn’t forget and let his car run too long unattended, especially if it is in a garage attached to his house.

Polymorph In Practice

January 19, 2010 by 22 Comments

[youtube=http://www.youtube.com/watch?v=gxy22VfZq0E&feature=player_embedded]

[Leesam] tipped us off to this cool tutorial for shaping Polymorph. For those who haven’t, it is pretty cool stuff. It is a plastic that comes in little pellets. You can melt it down at relatively low temperatures and mold it to the shape you need. We’ve seen it used on several projects, most notably CrabFu’s swashbot3. Generally, we see it hand shaped, so it is fairly organic and imperfect. It can be used for more precise shapes though. This tutorial walks us through the easiest way to produce sheets of the stuff to be cut and bent into brackets as well as some helpful tips on getting the best results.