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42 items tagged "sensor"
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tiny power [+],
thermal imaging camera [+],
theremin [+],
temperature sensor [+],
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system [+],
speed sensor [+],
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sluggy [+],
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rick osgood [+],
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remote starter [+],
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rc planes [+],
rain sensor [+],
rain [+],
radio controller [+],
quality optics [+],
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pulse oximeter [+],
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plaster walls [+],
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peter [+],
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linksys nslu2 [+],
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lath and plaster [+],
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japan [+],
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infrared light [+],
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diederich [+],
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dan cvrcek [+],
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Hardware [+]
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7:01
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Hack a Day
[Manish] packed lots of functionality into this radiation sensor module. The device is completely solar powered and weatherproof, so it can be mounted anywhere. It uses a Geiger Muller tube to monitor radiation and connects to the internet using wifi network to report the readings. The design uses an Arduino Pro Mini to perform the [...]
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10:01
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Hack a Day
Pinch-zoom is a godsend (and shouldn’t be patent-able) and although we mourn the loss of a physical keyboard on a lot of device we use a tablet nearly as often as we do a full computer. But the touch screen interface is not open to everyone. Those who lack full dexterity of their digits will [...]
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10:05
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Hack a Day
[Rob] lives in a 100-year-old house, and with these antique lath and plaster walls and old window frames comes a terrible amount of drafts. The usual way to combat this energy inefficiency is with a thermal imaging camera, a device that overlays the temperature of an object with a video image. These cameras are hideously [...]
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10:01
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Hack a Day
The rig pictured above works as an Internet connected temperature sensor which sends [Zaion] an email with a graph of the change over time. This in itself is interesting, but one part in particular caught our eye. He’s using an i2c temperature sensor , and we think the PCA9517 Level-Translating I2C Bus Repeater that makes it [...]
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11:01
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Hack a Day
Capacitive touch plants Here’s a proof of concept for using plants as a capacitive touch sensor. The sensor is simply a hunk of double-sided copper clad board attached to a microcontroller. But it seems to be able to sense what part of the plant is being touched. [Thanks Fabien] Adding wireless charging to a Nokia [...]
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12:01
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Hack a Day
The apartment [Angus] lives in must be sealed up pretty tight. It was so humid during the winter that there was a mold issue. We usually have the opposite problem, needing to add humidity to the air in the colder months. To combat the issue he bought a small dehumidifier, but wanted to automate the [...]
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12:01
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Hack a Day
A couple of Harvard researchers have developed a method of using digital barometers as a touch sensor. The good news for us is that they’ve open sourced the project, including Eagle board files, firmware, and details about the materials they used. The digital barometers were chosen for their characteristics, availability, and low-cost. The sensor uses an array of Freescale MPL115A2 [...]
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12:01
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Hack a Day
[Ivan's] friend built a proximity sensor to switch his LED bench lighting off every time he walked away. The idea is pretty neat, so [Ivan] decided to implement it for mains devices by making this proximity switched outlet box. A Sharp GP2D12 infrared distance sensor is the key to the system. It has an emitter and [...]
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17:00
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SecuriTeam
IBM WebSphere Sensor Events is prone to multiple input validation vulnerabilities that includes multiple cross-site scripting vulnerabilities, an unspecified security vulnerability, and a directory-traversal vulnerability.
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15:15
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SecDocs
Authors:
Dan Cvrcek Tags:
security wireless MICA Event:
Chaos Communication Congress 25th (25C3) 2008 Abstract: Firstly, we mention an initial qualitative risk assessment, carried out by interviewing the operating manager of a large suspension bridge and a contractor responsible for part of a large subway tunnel network who want to use wireless sensor networks. The core of the talk deals with assessing the practical security of the particular COTS system adopted by our team, the Crossbow MICAz motes running TinyOS or XMesh, together with the Stargate gateway: we designed and implemented a variety of attacks on this system and we discuss the security problems we found, together with appropriate fixes where possible. While some of our attacks exploit generally known vulnerabilities, others like selective jamming and power exhaustion through routing table manipulation are original and interesting in their own right. In section we also demonstrate how an attacker can undetectably alter messages in an IEEE 802.15.4 radio environment.
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9:01
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Hack a Day
Now you can find out how hard it is raining outside without leaving the confines of your mancave/womancave. Pictured above is the sensor portion of what [Frapedia] calls his visual rain sensor. Most rain gauges just use a graduated cylinder to capture water as it falls from the sky. That will give you a reasonably [...]
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13:01
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Hack a Day
These cool looking little bots are part of a fleet of floating water sensors built by The Lagrangian Sensor Systems Laboratory (LSSL) at UC Berkeley, the Lawrence Berkeley National Laboratories (LBNL) and the California Department of Water Resources. In an emergency such as a levee break, flood, or spill, they can be deployed to gather information [...]
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16:01
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Hack a Day
[Rajendra] tipped us off to this really slick hack he’s done to allow his multimeter to tell the ambient temperature. He’s basically measuring the output of an LM35 temp sensor that he has mounted in the case. The circuit is extremely simple and only requires the sensor, a couple resistors, and a switch so that [...]
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13:01
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Hack a Day
[Dustin Andrews] built this add-on board which works as a proximity sensor. He wanted a standalone sensor for his Arduino projects which would use a single pin as a trigger. This lets him alert the Arduino when an object approaches the sensor without the need for polling or extra code on the Arduino side of [...]
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13:01
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Hack a Day
Hacks like this one don’t help us recover from extreme pack-rat behavior. Driving home the point that one should never throw anything away [Peter] built a flex sensor from component packing material. It uses the black conductive foam in which integrated circuits are sometimes embedded for shipping. Above you can see the grey rectangle which [...]
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7:01
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Hack a Day
[Rick Osgood] wanted to build a color sensor that could be held up to any object to get RGB color values. He originally started with a photoresistor and a few LEDs, but couldn’t get that to work reliably. [Rick] finally completed his color sensor after finding a digital luminosity sensor on Adafruit, ending up with a [...]
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12:41
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Hack a Day
The team over at the Louisville Hackerspace LVL1 is not going to be outdone when it comes to collecting environmental data. They put together this Frankenstein of sensor boards that lets you collect a heap of data showing what is going on around it. At the center-left a small Arduino clone is responsible for collecting [...]
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12:41
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Hack a Day
The team over at the Louisville Hackerspace LVL1 is not going to be outdone when it comes to collecting environmental data. They put together this Frankenstein of sensor boards that lets you collect a heap of data showing what is going on around it. At the center-left a small Arduino clone is responsible for collecting [...]
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10:01
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Hack a Day
[Owen] has a fairly big project in the works, where he’ll need to use infrared light to send data wirelessly between two nodes. The only problem with his grand plan is that he has never built anything of the sort. As a learning exercise, he decided to try his hand at building a wireless control [...]
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9:42
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Hack a Day
This project shows you one possible way to use HTML5 to fully integrate sensor data from a microcontroller into our technological lives. Now, when we saw this tip come through our inbox we thought it would be an interesting example to learn from but we weren’t ready for how truly cool the setup is. Take [...]
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13:22
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Hack a Day
Along with hobby electronics, flying RC planes is one of [Diederich’s] favorite hobbies. When out in the field, he prefers to use an Aurora 9 radio controller, and while the remote is great, he was a bit disappointed in Hitec’s telemetry sensor lineup. He says that the sensors are pretty decent, though limited, and he [...]
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8:04
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Hack a Day
[Chris] at PyroElectro sent in a great 8-part write-up of a miniature infrared theremin. The theremin is based on a PIC microcontroller and an infrared distance sensor. The build log goes through the theory of operations for the IR sensor and tone generation. [Chris] definitely does a great job showing the math that went into the design. [...]
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14:10
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Hack a Day
Sound localization is very popular in law enforcement circles due to its accuracy and ability to quickly separate gunshots from other similar noises. These systems don’t come cheap, and after trying to build one himself, [Fileark] knows why. He thought it would be neat to build a sound localization sensor based on how the human [...]
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16:02
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Hack a Day
The [Libelium] team wanted to help people in Japan measure radiation in their surroundings following the nuclear accident in Fukushima. Because of the affordability and seeming ubiquity of the Arduino platform, they have been hard at work this last month trying to get their Geiger counter sensor board for an Arduino out the door. We think they’ve done a remarkable [...]
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5:01
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Hack a Day
WiiGait is not a political scandal, it’s a project that records motion data while walking. [Bilal Chishti] and [Zassa Kavuma] are strapping a Wii remote onto each leg and recording the sensor data while making video of the walker at the same time. The two are using an Ubuntu box to pull the sensor data [...]
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12:30
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Hack a Day
This collection of touch sensor information should be of interest to anyone who liked the simple touch sensor post from Thursday. That was a resistive touch sensor and is covered in detail along with AC hum sensors that trigger based on induced current from power lines around you, and capacitive touch switches like we’ve seen [...]
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12:04
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Hack a Day
[Bill Porter] has joined in the pursuit of an inexpensive yet effective way to monitor his power usage. He calls his project the Not So Tiny Power Meter, and shared both his successes and follies involved in seeing it through to implementation. There are problems; sizing issues with enclosures and his PCB, issues with noise [...]
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9:00
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Hack a Day
Sometimes when we look at a hack, its to see how someone chose those parts for the project. In this case, it would have been hard to see it coming. [Janne Jansson] decided to combine a set of measuring cups, a hacked Linksys NSLU2 NAS, and a PS/2 Mouse together to make a self-contained Wind [...]
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12:00
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Hack a Day
This module is a sensor package for monitoring the electrical activity of the heart. It is the product of an effort to create a Wireless Body Sensor Network node that is dependable while consuming very little electricity, which means a longer battery life. To accomplish this, the microcontroller in charge of the node compresses the data [...]
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8:37
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Hack a Day
Having experienced quite a bit of trouble getting the Nintendo Wii remotes to work reliably with his home theater projector, [Sprite_TM] designed his own sensor bar replacement. If you’re not familiar, the Wii remotes have an infrared camera in the tip that sense two IR LEDs in the sensor bar that resides above or below [...]
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9:00
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Hack a Day
[Mike] built a sensor rig to measure projectile speed. The setup uses a tunnel with two sensors in it. Each consists of a laser diode on one side focused on a photodiode in the other. The two are monitored by an op amp and measured by an ATmega128 microcontroller. When the beams are broken the [...]
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11:05
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Hack a Day
[Devon Croy] built a case to join a webcam sensor with a camera lens. The box is a PVC conduit box you’d find at a home center. He used JB Weld to attach four bolts to the back of the box. These are used to fine-tune the mounting plate for the webcam sensor to ensure [...]
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13:00
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Hack a Day
As part of his Master’s dissertation [Salvador Faria] built a sensor suite for wine monitoring. He needed to develop a method of tracking data inside the wine cask during the vinification process. What he came up with eclipses the wine cellar temperature monitors we’ve seen before. He picked up pH, temperature, carbon dioxide, alcohol, and relative humidity [...]
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10:16
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Hack a Day
The HOPE conference was last weekend and [Nathan] spent some time with fellow members of Makers Local 256 developing this badge proximity sensor. They took one of the HOPE badges, which have a radio on board for the tracking network, and wrote code for its MSP430 to detect other badges nearby. It uses a Geiger counter they brought [...]
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21:05
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SecDocs
Authors:
Thanassis Giannetsos Tags:
wireless Event:
Black Hat EU 2010 Abstract: The pervasive interconnection of autonomous sensor devices has given birth to a broad class of exciting new applications. At the same time, however, the unattended nature and the limited resources of sensor nodes have created an equal number of vulnerabilities that attackers can exploit in order to gain access in the network and the information transferred within. While much work has been done on trying to defend these networks, little has been done on suggesting sophisticated tools for proving how vulnerable sensor networks are. This work demonstrates a tool that allows both passive monitoring of transactional data in sensor networks, such as message rate, mote frequency, message routing, etc., but also discharge of various attacks against them. To the best of our knowledge, this is the first instance of an attack tool that can be used by an adversary to penetrate the confidentiality and functionality of a sensor network. Results show that our tool can be flexibly applied to different sensor network operating systems and protocol stacks giving an adversary privileges to which she is not entitled to. We hope that our tool will be used proactively, to study the weaknesses of new security protocols, and, hopefully, to enhance the level of security provided by these solutions even further.
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21:05
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SecDocs
Authors:
Thanassis Giannetsos Tags:
wireless Event:
Black Hat EU 2010 Abstract: The pervasive interconnection of autonomous sensor devices has given birth to a broad class of exciting new applications. At the same time, however, the unattended nature and the limited resources of sensor nodes have created an equal number of vulnerabilities that attackers can exploit in order to gain access in the network and the information transferred within. While much work has been done on trying to defend these networks, little has been done on suggesting sophisticated tools for proving how vulnerable sensor networks are. This work demonstrates a tool that allows both passive monitoring of transactional data in sensor networks, such as message rate, mote frequency, message routing, etc., but also discharge of various attacks against them. To the best of our knowledge, this is the first instance of an attack tool that can be used by an adversary to penetrate the confidentiality and functionality of a sensor network. Results show that our tool can be flexibly applied to different sensor network operating systems and protocol stacks giving an adversary privileges to which she is not entitled to. We hope that our tool will be used proactively, to study the weaknesses of new security protocols, and, hopefully, to enhance the level of security provided by these solutions even further.
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2:20
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SecDocs
Authors:
Thanassis Giannetsos Tags:
wireless Event:
Black Hat EU 2010 Abstract: The pervasive interconnection of autonomous sensor devices has given birth to a broad class of exciting new applications. At the same time, however, the unattended nature and the limited resources of sensor nodes have created an equal number of vulnerabilities that attackers can exploit in order to gain access in the network and the information transferred within. While much work has been done on trying to defend these networks, little has been done on suggesting sophisticated tools for proving how vulnerable sensor networks are. This work demonstrates a tool that allows both passive monitoring of transactional data in sensor networks, such as message rate, mote frequency, message routing, etc., but also discharge of various attacks against them. To the best of our knowledge, this is the first instance of an attack tool that can be used by an adversary to penetrate the confidentiality and functionality of a sensor network. Results show that our tool can be flexibly applied to different sensor network operating systems and protocol stacks giving an adversary privileges to which she is not entitled to. We hope that our tool will be used proactively, to study the weaknesses of new security protocols, and, hopefully, to enhance the level of security provided by these solutions even further.
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8:50
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Hack a Day
[Ben] bought a remote starter for his car but needed a way to make sure the manual transmission was in neutral when starting. He built this infrared sensor frame to detect the position of the stick. It uses four beam paths which will tell him the exact gear or neutral position of the shifter. For [...]
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14:30
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Hack a Day
This pulse oximeter turned out very nicely. It is based around a Freescale microcontroller and detects pulse as well as oxygen saturation in your blood. The sensor is made of two wood pieces and allows two wavelengths of light to be shined through your finger. A sensor picks up the light on the other side [...]