MetroChange lets you donate leftover MetroCard balance to charity

Students at NYU are developing a project to allow users of New York City’s MetroCard magnetic transit cards to donate leftover funds to charity directly from the card. It’s known as the MetroChange project and uses commonly available hardware, including an Arduino and mag stripe reader. The group really took a serious approach to development, […]

PROTOTYPE PREVIEW: PIC24FJ64GB/A002 breakout board

Earlier this week we prototyped a transistor tester circuit on a breadboard. We wanted a start with a full microcontroller and power circuit, ready to go, Arduino-style. All the breakouts we had on hand were a pain to use. Most obscure the prototo area and many were just too big. Inspired by Shaos’ nedoCPU-32, we […]

FXI demos “any screen” connected computing USB device

Trev writes to inform us of an Android computer in a USB key. This device is now being prototyped by FXI and has been code named Cotton Candy. “The Cotton Candy is a USB stick sized computer device that allows users a single, secure point of access to all personal cloud services and apps through […]

NEW PROTOTYPE: USB & serial LCD backpack

Small character LCDs can show new mail stats, system performance, news feeds, and more. The USB and Serial LCD backpack connects HD44780-compatible character LCD screens to your USB (or serial) port. Almost every open source hardware shop sells some type of serial LCD backpack. Our goal is to build an update to the classic serial […]

Defcon 19: Kinect + Metasploit = Kinectasploit

In this presentation from last summer’s Defcon 19 conference, Jeff Bryner, Owner of, demonstrates how to integrate the Kinect with Metasploit. He uses the open source Blender 3D game engine to interface the Kinect hardware with Metasploit. This hack allows you to launch preassigned Metasploit attacks based upon your gestures as detected by the […]

MCU-in-the-middle attack on Diebold voting machine

Computerized voting machine vulnerabilities are nothing new, but this video demonstrating a man-in-the-middle wireless attack on a Diebold voting machine takes a different tact than most others. A vulnerability assessment team at Argonne National Laboratories was able to compromise the security of the Diebold machine, rendering it vulnerable by using a homemade MCU board at […]

ATtiny2313 based servo tester has developed this project for a simple ATtiny2313 based servo tester. This device lets you test servos by varying the pulse width between limits of 0.8000 ms and 2.2000 ms selectable through the use of four buttons. While the schematic shows an Atmel AT90S2313, the circuit will work with the popular ATtiny2313 using version […]

SkyNET air drone hacks wifi on the fly

Researchers at the Stevens Institute of Technology have designed and built the prototype of a WiFi hacking air drone based on the AR.Drone quadcopter. They added a lightweight single board computer with Debian Linux installed, along with 3G mobile broadband connectivity and two WiFi cards (the second for packet injection.) A GPS receiver and sonar […]

Transcranial magnetic stimulation device

This video describes a prototype of a transcranial magnetic stimulation device designed by Ben Krasnow. He explains: Transcranial Magnetic Stimulation (TMS) is a technique to stimulate brain tissue directly through the skull. It works by sending a very high current pulse through a coil that is located on the subject’s scalp. The fast-rising edge of […]

Arduino hack imitates Pixar’s living lamp, disses IKEA

This video shows “The Annoying IKEA LAMP” or SM-1, ArduinoArts’ finalist entry for SeeedStudio’s Grove Toy Kit contest: Headed by industrial engineer Javier Lander, the project weds two servos (one in the base and one in the lamp), sensors for motion and sound, a three axis accelerometer, LED light and audio board to an Arduino […]

InkShield: open Open source inkjet shield for Arduino

Nicholas C. Lewis is developing an interesting Kickstarter project known as the InkShield. This shield allows you to connect a HP C6602 inkjet cartridge to your Arduino turning it into a 96dpi print platform. It only uses 5 pins which can be jumper selected to avoid other shields. It is designed with a Arduino Mega […]

Pip-Boy 3000 game controller proto using Arduino

If you’re into the gaming scene, then you know that Fallout is a pretty popular post nuclear simulation game. A fan of the game wanted to create a prototype of the game’s wrist mounted controller known as the Pip-Boy 3000. MyMagicPudding writes: This is the first test of my attempt to build a working Pip-Boy […]

PROTOTYPE: Thermal Tweeter, networked Twitter printer @dangerousproto

Free video chat by Ustream Send a Tweet to @dangerousproto and watch it print live on the USTREAM feed. Thermal Tweeter is hacked together from a SparkFun thermal printer and the web platform internet development board. No computers are used to query twitter or run the printer, this is a 100% stand-alone Twitter appliance. This […]

Dangerous DSO part 5: Testing and conclusions

It’s the last day of our week-long Dangerous DSO adventure. Yesterday we simulated the analog front-end and found a few changes to test. First, we’re going to increase the ADC buffer gain to 2. That should make vertical offset adjustment easier. Second, we’re going to try a more refined input range divider with a 900K […]

Dangerous DSO part 4: Over simulated

Yesterday we covered the Dangerous DSO analog front end. This circuit divides our +/-10volt input to +/-0.5volts, and re-centers it between the 2volt and 3volt range the ADC can measure. Today we’ll simulate the circuit to get a better feel for how it works. Dangerous DSO is a new logic analyzer/oscilloscope design we’ve been using […]

Dangerous DSO part 3: Messing with the front-end

Yesterday we looked at how the Dangerous DSO analog to digital converter works, and it turns out to be a pain in the butt. It only measures a 1volt (1Vp-p) range between 2volts and 3volts. That’s not a very useful range for an oscilloscope, so we need an analog front-end that transforms the input signal […]

Dangerous DSO part 2: Feed and water your ADC

Dangerous DSO is a new logic analyzer/oscilloscope design we’ve been using in the lab. This is not a finished project, it will not be produced. We’re posting our current progress to get some feedback. Look for a new Dangerous DSO article every day this week. Be sure to see Part1: There’s so much between 0 […]

Dangerous DSO part 1: There’s so much between 0 and 1

Dangerous DSO is a new logic analyzer/oscilloscope prototype we’ve been using in the lab. It combines a 16 channel logic analyzer and one 50MHz oscilloscope channel with +/-10volt DC range. The combined tool shows what your signal does between 0 and 1, which helps pinpoint noise and other electrical glitches. Our goal with the D-DSO […]

NEW PROTOTYPE: USB Infrared Toy v2

Use a remote control with your computer, view infrared signals on a logic analyzer, or capture and replay remote control buttons. USB Infrared Toy v2 has higher-power infrared transmitter and several new features. Read the full design documentation. NEW: 100mA constant current IR transmitter with improved range NEW: Infrared frequency measurement NEW: Pin breakout area […]