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4:01
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Hack a Day
If your only experience with Garmins is from that one rental car a few years back, it may surprise you that some of them, mostly the handheld outdoor units, allow custom maps. This sounds cool until you find out the limitations. Unless you upgrade to premium, it doesn’t allow map files larger than 3MB. What’s worse, it will choke the resolution of maps larger than one megapixel. Well, bust out your virtual hiking boots, because [facklere]’s gonna take you down the trail of DIY digital cartography.
You can use any map you want as long as its not completely fictional (although wandering the maps of middle-earth would be a fun hack on top of this one). Your map can be paper, PDF, or parchment; it just has to be converted to JPEG. The map [facklere] wanted to use was a huge PDF, so as a bonus, he shows how to get from PDF to JPEG in GIMP. Then comes the fiddly part — rooting the map in reality by overlaying it on real roads using Google Earth.
You’ve still got a huge map. Now what? The secret sauce is tiling. [facklere] used KMZfactory, a free map editor for Garmin maps that goes the extra mile to split the tiles for you, keeping them under the 1MP limit. Once that’s done, just upload it to your unit and hit the road.
Got an old Garmin that won’t do custom maps? See if you can get DOOM up and running on it.
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19:01
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Hack a Day
GPS is available on most smart phones, which is all well and good unless you drive out into a place with weak service. Unless you want to go into the before-time and buy a standalone GPS (and try to update the maps every so often) or go even further back and print out MapQuest directions, you’ll need another solution to get directions. Something like this project which sends Google Maps directions over SMS.
The project is called RouteMe by [AhadCove]. It runs on a Raspberry Pi at his home which is constantly monitoring an email inbox. Using Google Voice to forward incoming text messages as emails to the Pi, the system works when your phone has a cell signal but no data connection. The Pi listens for specific commands in that SMS-to-Email connection and is able to send directions back to the phone via text message. That’s actually a neat hack you may remember from the olden days where you can send email as SMS using the phone number as the address.
If you find yourself lost in the woods with just your phone often enough, [AhadCove] has all of the code and detailed directions on how to set this up on his GitHub site. But don’t discount this particular task, anything you can script on the Pi can now be controlled via SMS without relying on a service like Twilio.
This maps hack is a pretty ingenious solution to a problem that more than a few of us have had, and it uses a lot of currently-available infrastructure to run as well. If you want another way of navigating without modern tech, have a go at dead reckoning in a car.
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22:01
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Hack a Day
We may not always be aware of it, but the daily function of the technological world around us is extremely dependent on satellite navigations systems. It helps the DHL guy deliver those parts you were waiting for, and keeps the global financial and communication systems running with precision timing. So, when these systems have a bad day, they can spread misery across the globe. To keep an eye on these critical constellations, [Bert Hubert] and friends set up a global open source monitoring network that aims to track every satellite in the GPS, Galileo, BeiDou and GLONASS constellations.
Local azimuth and local elevation of GPS, Galileo, and BeiDou satellites passing overhead [via @GalileoSats]Off-the-shelf GNSS receivers are used to feed navigation messages to a machine running Linux/OSX/OpenBSD. The messages are processed to calculate the position (ephemeris), extract atomic clock timings and status codes of each satellite. Publicly available orbital data is then used to make an informed guess regarding the identity of the satellite in question.
All this data enables [Bert] to determine ephemeris discontinuities, time offsets, and atomic clock jumps. The project’s twitter feed, @GalileoSats, is very active with interesting updates. Go check it out! All the collected data is available for research purposes and the software is up on Github.
GPS hacks are never in short supply around here and another open source satellite network, SatNOGS has been featured a number of times on Hackaday after it won the 2014 Hackaday Prize.
Thanks for the tip [DarkSideDave]!
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13:00
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Hack a Day
[Patrick McDavid] and his wife had a legitimate work-related reason for writing some Python code that would pull the exact latitude and longitude of the individual locations within a national retain chain from Google’s Geocoding API. But don’t worry about that part of the story. What’s important now is that this simple concept was then expanded into a pocket-sized device that will lead the holder to the nearest White Castle or Five Guys location.
The device, which [Patrick] lovingly referrers to as the “Cheeseburger Compass”, uses a Raspberry Pi 3, an Adafruit 16×2 LCD with keypad, a GPS module, and …read more
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1:00
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Hack a Day
Where the Hackaday Cat goes when she steps over the threshold into the wider world is a mystery, she reveals her whereabouts strictly on her terms and would we suspect be very cagey were we able to ask her about it. [Andy C] however has a need to know where his cat is spending her time, so he’s made a GPS collar for a bit of feline spying.
There are commercial GPS collars for pets, but they all share the flaw of extremely limited battery life. His challenge then was to create a collar that delivered the required pinpoint fix …read more
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7:01
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Hack a Day
[JJ] picked up a Garmin Nuvi 780 GPS from an auction recently. One of the more frustrating features [JJ] ran into is it’s PIN code; this GPS can’t be unlocked unless a four-digit code is entered, or it’s taken to a ‘safe location’. Not wanting to let his auction windfall go to waste, [JJ] rigged [...]
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14:01
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Hack a Day
[Andrew Holme] wrote in to tell us about some work he’s done to improve his scratch-built GPS receiver. He figured out a way to use the same hardware but double the number of satellites it can track to a total of eight. When we looked at the original hardware about a year ago it was [...]
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9:21
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Hack a Day
[Renaud Schleck] somehow got lucky enough to find a GPS wristwatch in the trash. It had a broken LCD screen so its wouldn’t be of much use on that next hiking trip, but he knew it still had potential. He used the GPS module and a few other parts to build this reverse geocache box. [...]
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11:01
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Hack a Day
Instead of walking his kid to the bus stop like he used to, [Paul Wallich] lets this quadcopter watch his son so he doesn’t have to. It is quite literally an automated system for tracking children — how wild is that? The idea came to him when wishing there was a way to stay inside the [...]
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5:01
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Hack a Day
Now you can prove that you have the bumpiest commute in the office by measuring how rough your ride actually is. [Techbitar] calls the project the Bump-O-Meter. It uses an Arduino, GPS, and accelerometer to map out rough roads. The hardware was built on a breadboard and [Techbitar] goes into detail about connecting and communicating [...]
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7:01
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Hack a Day
A few years ago, [Phang Moh] and his compatriots were asked by a client if they could make a vehicle tracking device for oil tankers all around Indonesia. The request of putting thousands of trackers on tanks of explosives was a little beyond [Phang Moh]‘s capability, but he did start tinkering around with GPS and [...]
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6:01
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Hack a Day
In case the Realtek RTL2832u-based USB TV tuner dongle isn’t useful enough, the folks behind a project to get a software defined GPS receiver off the ground successfully plotted GPS data in real-time with this very inexpensive radio. Previously, we’ve seen these dongles grab data from GPS satellites - useful if you’re building a GPS-based clock – [...]
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21:56
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SecDocs
Authors:
Marvin Mauersberger Tags:
GPS Event:
Chaos Communication Camp 2007 Abstract: This talk gives a detailed overview on the state of the art of GPS tracking system (aka. location bugs), how they work and how to find and defeat them. GPS based tracking of peoples, cars and things is quickly becoming a real threat to personal privacy. Trackers are now cheap and easy to build and deliver high position accuracy and real-time transmission if desired. Low-power electronics and modern battery technology combined result in tracking systems that can live for weeks and months hidden in your car, motorbike or even backpack, transmitting your moves and whereabouts unknown to you to unfriendly people. The talk describes how GPS trackers work, how and where they are usually hidden, how you can find them (by physical search and other means) and what you can do against them. We will also briefly cover GPS chips in mobile phones and tracking by mobile phones in general.
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12:01
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Hack a Day
[Becky Stern] came up with a way to make sure you and your dog are getting enough exercise. It’s a dog collar mounted GPS that measures how far you have walked. Just set your target distance and the progress bar in the middle of this flower will let you know when you reached it. The [...]
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10:00
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Hack a Day
A couple folks over at the Radionavigation Lab at UT Austin successfully spoofed GPS to take control of a small helicopter drone this weekend. Of course, this attracted the attention of the Department of Homeland security, so you’d better stock up on GPS spoofing equipment while there’s still time. The DHS, CIA, and US Military have [...]
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7:00
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Hack a Day
Originally, [Karman] wanted to build a speedometer for his bike. Feature creep makes fools of us all, so after a month of work [Karman] had a GPS-enabled cube that tells him his current latitude and longitude, current time, course, direction and speed. [Karman]‘s GPS cube uses a cheap GPS module, Arduino Mini Pro, a magnificent OLED display, and [...]
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15:41
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Hack a Day
Talk about versatile hardware. These inexpensive TV tuner dongles can also grab GPS data. You may remember seeing this same hardware used as a $20 option for software defined radio. But [Michele Bavaro] decided to see what other tricks they could pull off. Would it surprise you that he can get location data accurate to [...]
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5:01
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Hack a Day
Depending on how you view them, red light cameras are a great way to get people to drive carefully, or an utter nuisance. We agree with the latter opinion, as does [Dave], so he built a handy little device that alerts him when he’s about to approach one of these intersections. His Red Light Camera [...]
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13:36
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Hack a Day
[Troy] recently got his hands on a greengoose starter kit and like any HAD reader would do, proceeded to probe it mercilessly. The greengoose appears to be some sort of location-tracking device which reports back to a server on the position and location of radio transmitters relative to it. [Troy] managed to not only get [...]
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12:01
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Hack a Day
Here’s a talking reverse geocache puzzle box which [Erv Plecter] built as a wedding gift for his friends. The box itself isn’t really the gift, but a surprise delivery system for a collection of cash from the couple’s circle of friends to go toward the honeymoon. We think this is about fifty times more fun that getting [...]
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7:01
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Hack a Day
[Ranger Bob] crafted this great looking Reverse Geocache box. Our favorite feature is the black piece of acrylic on top. It’s laser cut (not sure if the letters are engraved or not) and gives a great finished look while hiding a couple of things at the same time. The orange box is a metal cash [...]
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11:01
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Hack a Day
[Willem] has a friend that wanted to take a GPS datalogger up an unclimbed mountain the wilds of Kyrgyzstan. The GPS logger built for the expedition made it to the summit of Eggmendueluek, but it didn’t work the whole way up. Since the logger came back to London, [Willem] was able to do a complete [...]
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10:01
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Hack a Day
[Buxtronix] wanted to know where his cat (named Ash, but we thought Socks sounded much more cliché) was going when on the loose. He designed a GPS tracking collar and a way to map the data it collects. The hardware actually turns out to be very simple. He needed a GPS module to gather location [...]
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9:01
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Hack a Day
GPS receivers may be available for well under $100 these days, but what’s the fun in buying one when you can build it yourself? According to [Andrew], the creator of this device, he was inspired by Matjaž Vidmar who developed a GPS receiver from scratch over 20 years ago. His article can be found here [...]
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10:11
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Hack a Day
[Davy] and his friend [Chris] were tasked with putting together a bachelor party for their friend [J], and had a little more in mind than the standard drunken revelry. To earn the privilege of partying his brains out, they decided that [J] would have to fulfill a series of tasks and challenges before joining up [...]
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14:28
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Hack a Day
The team at Eschelle Inconnue wanted to “trace a sound cartography of Islam” in Marseilles, France, so they came up with a clever little GPS walking tour powered by an Arduino, MP3 playback module, and a surface transducer speaker. The team used a Processing app to define geographic areas where each MP3 file would play. [...]
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13:48
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Hack a Day
[Janis] has an outdoor cat that likes to roam all over the neighborhood. He was curious to see what he was up to all day, so he decided to build a small cat cam to document the feline’s comings and goings. After the cat returned one evening with a snail riding along on his back, [...]
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14:46
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Hack a Day
Hackaday forum member [nes] was training for an endurance race, and rather than having someone verbally call out his lap times, he wanted something he could keep in-vehicle to help keep track of his performance. With the race budget running dry, he and his teammates needed something cheap, if not free, to get the job [...]
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4:05
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Hack a Day
Open Electronics just released a neat little board that can place you on a map without using GPS. The board works on the basic principles of a cellphone network – the ‘cell’ network is a series of towers that are placed more or less equidistant to each other. Save for the most desolate parts of [...]
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14:02
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Hack a Day
While some people can rely solely on memory and landmarks to find their way home, others need a bit more help. Consider Instructables user [_macke_] for instance. Like other screenless GPS navigation devices we have seen, his “Find Home Detector” uses a GPS module to obtain his location, guiding the way home via a set [...]
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5:06
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Hack a Day
The hackers over at the xda-developers forum always seem to have something awesome brewing, and [fosser2] is no exception. He bought himself a Viewsonic G-tablet, but was a bit disappointed in its lack of a GPS module. He pried the tablet open in hopes of finding a spot where he might be able to cram [...]
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14:01
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Hack a Day
[ifixit] has apparently grown tired of tearing apart Apple’s latest gizmos, and their latest display of un-engineering has a decidedly more federal flair. You may have heard about Yasir Afifi’s discovery of a FBI-installed tracking device on his car back in October of last year. Apparently, the feds abandoned a similar device with activist Kathy [...]
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6:45
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Hack a Day
The latest project from Lucidscience.com is a simple AVR based GPS tracker. As usual, the instructions here are quite in-depth including schematics and step by step procedures all the way down to modifying cables when necessary. What we found interesting is that the GPS module he’s using is so simple. It only requires 3 wires, one for [...]
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5:01
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Hack a Day
Hackaday reader [Paul] recently shared a simple hack he put together via our Flickr photostream. It seems that his Magellan GPS unit is pretty finicky when it comes to power supplies. When connected to the Magellan adapter, the GPS unit charged as you would expect. When connected to a PC, it sensed the connection and [...]
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6:12
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Hack a Day
[jayesh] wasn’t actually trying to solve any clever problems when we built his homebrew GPS tracker. He just had the hacker mentality and wanted to build something fun and useful while geeking out with electronics and software. On the hardware side, he started with an Arduino, then added a GPS module for location detection and [...]
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14:01
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Hack a Day
The world can be a pretty difficult place to navigate when you lack the ability to see it. There are many visually impaired people across the globe, with some figures claiming up to 40 million individuals affected. While walking canes and seeing-eye dogs can be a huge help, [Anirudh] of Multimodal Interactions Group, HP Labs [...]
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11:01
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Hack a Day
[Oneironaut] is trying out a new GPS module with the prototype seen above. It’s a San Jose Navigation device identified as FV-M8 and sold by Sparkfun for just under a hundred bucks. That’s it hanging off the bottom-right of the breadboard seen above. They’ve packed a lot of power into the small footprint, and made [...]
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11:01
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Hack a Day
When [Roberto] bought his Mini Cooper, he opted to forgo the factory GPS system as it was over priced and didn’t have the best of reputations. He decided that he still needed GPS in his car, so he committed himself to install a TomTom unit in a way that would not detract from the car’s [...]
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11:01
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Hack a Day
Instructables user [jorgegunn] has put a unique spin on a recent geocache build by incorporating speech recognition and requiring that the “finder” knows the secret password to access the loot contained within. Although we won’t spoil the fun here, the techie spirit of the build was further bolstered by choosing a password fitting for any [...]
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8:10
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Hack a Day
If you use the Google Maps Mobile function then the big G knows where you are even if your phone doesn’t have a GPS module in it. So the next time you want geolocation capabilities in a project consider building around GSM functionality which can also be used for Internet connectivity. That’s exactly what this module does [...]
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14:00
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Hack a Day
Launching model rockets is a good time, but more often than not, it’s hard to tell how high the rocket went or how fast it moved – both essential facts when bragging about your latest flight. [Chris] recently built a GPS-based altimeter for the USC Rocket Propulsion Lab, so that they could track the performance [...]
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13:02
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Hack a Day
[Erv Plecter] likes to recreate movie props that actually work. This time around he’s making the motion detector device from the original Alien movie. You’ll immediately remember this prop after seeing and hearing it in the video after the break. For our money, the most brilliant part of that movie was the use of rhythmic sounds [...]
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6:06
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Hack a Day
Only a little bit out of season but better late than never! [Scott] brings us his Black Rock City Navigator. This unique bike mounted GPS device made for Burning Man 2010 features a servo driven array of LEDs. Two LED strips are used to cover the full 240 degrees of the C shaped city without [...]
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8:06
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Hack a Day
[Jeroen's] student project is a module that uses GPS tracking to create travel data on Google maps. It’s not really a spy device as the data isn’t transmitted, but would be a lot of fun to use on cycling and hiking adventures. A PIC 18F2550 reads location and altitude data from a GPS receiver as [...]
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11:00
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Hack a Day
Here is yet another offering in the Reverse Geocache puzzle arena. We’ve been getting a lot of tips about these projects but this one in particular stuck out from the others. [Mure] packed in a bunch of features, starting with the LCD screen seen above. You can just make out the single red button near [...]
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10:13
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Hack a Day
This is the reverse geocache box that [William Dillon] built as a Christmas gift this year. He started with an interestingly shaped wooden box from the craft store. The clasp to keep it shut uses a servo motor on the lid with a wooden arm that grasps a screw on the base. As with the [...]
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14:29
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Wirevolution
For now, all White Spaces devices will use a geolocation database to avoid interfering with licensed spectrum users. The latest FCC Memorandum and Order on TV White Spaces says that it is still OK to have a device that uses spectrum sensing only (one that doesn’t consult a geolocation database for licensed spectrum users), but to get certified for sensing only, a device will have to satisfy the FCC’s Office of Engineering and Technology, then be approved by the Commissioners on a case-by-case basis.
So all the devices for the foreseeable future are going to use a geolocation database. But they will have spectrum-sensing capabilities too, in order to select the cleanest channel from the list of available channels provided by the database.
Fixed devices (access points) will normally have a wired Internet connection. Once a fixed device has figured out where it is, it can query the database over the Internet for a list of available channels. Then it can advertise itself on those channels.
Mobile devices (phones, laptops etc.) will normally have non-whitespace connections to the Internet too, for example Wi-Fi or cellular data. These devices can know where they are by GPS or some other location technology, and query the geolocation database over their non-whitespace connection. If a mobile device doesn’t have non-whitespace Internet connectivity, it can sit and wait until it senses a beacon from a fixed whitespace device, then query the geolocation database over the whitespace connection. There is a slight chance at this point that the mobile device is using a licensed frequency inside the licensee’s protected contour. This chance is mitigated because the contour includes a buffer zone, so a mobile device inside a protected contour should be beyond the range of any whitespace devices outside that contour. The interference will also be very brief, since when it gets the response from the database it will instantly switch to another channel.
Nine companies have proposed themselves as geolocation database providers. Here they are, linked to the proposals they filed with the FCC:
Here’s an example of what a protected contour looks like. Here’s an example database. Note that this database is not accurate yet.
Actually, a geolocation database is overkill for most cases. The bulk of the information is just a reformatting of data the FCC already publishes online; it’s only 37 megabytes compressed. It could be kept in the phone since it doesn’t change much; it is updated weekly.
The proposed database will be useful for those rare events where the number of wireless microphones needed is so large that it won’t fit into the spectrum reserved for microphones, though in this case spectrum sensing would probably suffice. In other words, the geolocation database is a heavyweight solution to a lightweight problem.
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10:00
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Hack a Day
[Ryan O'Hara] built a location tracker he could use on motorcycle trips. Ostensibly this is to give his wife piece of mind be we think that was an excuse to play with GPS and SMS. To stand up to the trials of the road [Ryan] took his breadboarded prototype to the next level, using a [...]
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6:15
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Hack a Day
Our favorite Soviet-Era display that found its way into a present-day kit now displays time from orbiting satellites. A GPS module patched into an Ice Tube Clock with modified firmware will be able to provide a satellite-synced time. The firmware, modified by yours truly, parses the GPS module’s NMEA RMC sentences for the time and [...]
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7:07
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Hack a Day
We’re all for putting a GPS where it doesn’t normally go, but we’re not sure [Roberto's] version* is the best of locations. Take for example [Jair2k4's] GPS. It doesn’t block out 50% of his vision of the road and the impending accident in front of him.
Regardless, the solid aluminum and seamless mounting really does make [...]
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7:27
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Hack a Day
[Michael] designed this display board to mimic the appearance of a police car pulling you over. It resides in the rear window of his car (facing forward) as the controller board measures the speed of the vehicle. An Arduino grabs NMEA data from a GPS module and compares it with a table of speed limits. [...]
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14:00
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Hack a Day
[Sparky] notified us of his hack to allow interaction with the core of an Aldi GO Cruise 4300 GPS Windows CE OS. All that’s required is a few programs and registry edits to the GPS, which anyone can accomplish within a few minutes. But we suggest you go slow and double-check your work; nobody wants [...]
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13:05
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remote-exploit & backtrack
Hi All... before.. i'm sorry if this thread is not in place.. :)
This my first thread..
Hi.. I would ask.. How to mapping wireless using modem sierra 881U with GPS ?
Thanks...
Yours
Semiotics Code
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10:35
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Hack a Day
Quad copters have been pretty popular for the last few years, but this one is new to us. Take the same basic layout, but bump it to 6 rotors. Then you’ll have the hexacopter (google translated). With 6 rotors, built in GPS and stabilization and a camera mounted on the bottom, this thing is pretty [...]
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21:13
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SecDocs
Authors:
L. Aaron Kaplan Tags:
GPS locating Event:
Chaos Communication Congress 26th (26C3) 2009 Abstract: For a long time we warned of the perils of full scale, permanent tracking of persons by the state or corporations. Cell phones, data retention laws and other surveillance techniques close the freedoms of the net. But none can be as pervasive as the permanent location updates sent to Apple and Google via your Smartphone and laptop. With a precision of 10 m to 20 m, BSSID based location tracking has become the ultimative and global tracking of persons. This talk will describe weaknesses and trends in current location tracking methods. The internet learned to locate you in 2009! Skyhook Wireless is a small company focusing on providing high quality location based services to the world. To quote from their webpage: "Skyhook Wireless' XPS is the world's first true hybrid positioning system. Combining the unique benefits of GPS, Cell Tower triangulation and Wi-Fi Positioning, mobile consumers no longer have to wait minutes for a response or cope with inaccurate location." Customers include Apple (iPhone, Snow Leopard uses Skyhook Wireless) and Google. While most people don't realize it, the BSSIDs that their Smartphone "hears" gets transmitted to a single company in Boston, Mass. The cell phone tower identifier gets transmitted and if anything fails, they will revert to simple IP Geolocation DBs. The talk will focus on a few techniques for assigning GPS positions to you and tries to estimate trends and implications for society, law and law enforcement issues.
