[Pierre Dandumont] just finished up a little project that will give Google Maps’ location feature a run for its money. It’s a technique that spoofs WiFi networks in order to relocate the positional data reported via WiFi networks.
He starts with an explanation of the different ways modern devices acquire location data. GPS is the obvious, and mobile network triangulation is pretty well know. But using WiFi networks may be a new trick for you. We’re not 100% certain but we think Google is able to look up location data based on known IP addresses for WiFi access points (this would be a good comments discussion). To trick the system all you have to do is feed some captured AP data into the computer before Google Maps tried to lock onto a location. The video after the break shows Maps with the legit location displayed. After running a quick script whose output is shown above the map position is changed to the spoofed location.
Continue reading “Spoofing WiFi AP based geolocation”
It’s not quite artificial intelligence, but saying “Jeeves, lights!” will switch on the bulbs in the room. [Chipos81] built the voice-activated home automation around a Rapsberry Pi board with LightwaveRF devices switching lights and outlets.
The LightwaveRF system offers a WiFi link which provides Internet connectivity for all of those devices in your house. This makes it a snap for [Chipos81] to control them from the RPi. To provide speech recognition he’s using CMU Sphinx. It’s an open source speech recognition library developed by researchers at Carnegie Mellon University and released under a BSD license. It seems to do a great job in the video of quickly parsing several sets of commands.
“Jeeves” will even talk back to you to confirm a command. This is generated by Festival, a package developed by the University of Edinburgh. This provides some entertainment in the last seconds of the video as we detect a distinct Scottish accent when it says “See you tomorrow”.
The GPIO pins provide a bit of feedback, using three colored LEDs to let you know what is going on with the system. There’s even an IR LED used to add voice control to your Television.
Continue reading “Voice controlled home automation uses Raspberry Pi and LightwaveRF”
Here’s yet another example of well targeted advertising. This camera built around a Raspberry Pi is a giveaway from Sprite. The “lucky” winner of the camera will have the pleasure of seeing the Sprite logo as a watermark on all of the images they snap with it. But in the right hands it’s a simple hack to remove that “feature” (they published the Python script that adds the watermark) or to just scrap the parts for another project. Either way, Sprite got us to say their name three times in this paragraph so the campaign worked.
The most obvious part of this build is the custom cast resin case that they came up with which is a gaudy cartoon-like monstrosity. It protects the case-less Raspberry Pi board, and mounts the Pi Camera board so that the lens is positioned correctly. The lipstick-sized module mounted in the lower back half of the case is a 2400 mAh portable power supply with a USB charging port sticking out the side. This makes us wonder, do you have to wait for the RPi to power up before snapping a picture? If the size and color didn’t get you noticed by everyone the shutter sound will. it shouts the name of the soda company whenever you press the shutter release button.
If you’re more of a high-end photography enthusiast this DSLR wedded with an RPi will be of more interest.
It may seem confusing that you’re looking at a Raspberry Pi when this hack is about an Ambilight clone system that doesn’t need a computer. The point here is that this system works no matter what your video source is, where many projects in the past have required the video to be playing from a computer.
This hack follows in the same path of the ARM based custom job we was almost a month ago. Just like that project you use an HDMI splitter to gain access to the feed going to your television. The split signal is fed into an HDMI to composite video adapter. The composite signal is captured by a USB video encoder. The GPIO header drives a strip of addressable RGB LEDs. The whole thing is powered as one using a bit of cable hacking.
It’s slightly convoluted. But all of the components are easy to source and relatively cheap. The one caveat is that it works best if you are already using a hardware HDMI source selector instead of the one build into your TV. That way there is just one HDMI cable going to the television, and this can siphon off of that feed.
Continue reading “No computer Ambilight clone uses a computer”
[Tyler Spilker’s] DDD project is a Digital Dead Drop system based on Python and a Raspberry Pi as a server. It’s pretty rough around the edges at this point — which he freely admits. But we like the concept and figure it might spark an interesting conversation in the comments section.
Now by far our favorite dead drop concept is this USB drive lewdly sticking out of a brick wall. But you actually need to be on-site where this drive is mortared into the wall in order to access it. [Tyler] instead developed a webpage that gives him a text box to enter his messages. These are encrypted using key pairs and pushed to his remote RPi server. This way he can write down his thoughts knowing they’re stored securely and never in danger of being accessed from a lost or stolen cellphone.
If free thought isn’t what you’re trying to transfer from one place to another you probably want something like a Pirate Box.
If you want to mess around with your Xbox 360 controllers on a computer Microsoft would be happy to sell you a USB dongle to do so. But [Tino] went a different route. The board that drives the Xbox 360’s status light ring also includes the RF module that wirelessly connects the controllers. He wired this up to his Raspberry Pi using the GPIO header.
The module connects via an internal cable and is treated much like a USB device by the Xbox motherboard. The problem is that it won’t actually handle the 5V rail found on a USB connector; it wants 3.3V. But this is no problem for the RPi’s pin header. Once a few connections have been made the lights are controlled via
SPI I2C and [Tino] posted some example code up on Github to work with the RF module. He plans to post a follow-up that interfaces the module with a simple microcontroller rather than an RPi board. If you can’t wait for that we’re sure you can figure out the details you need by digging through his example code.
Perspective is a bit hard to grasp in this image, but all of this hardware is mounted thirty feet above the ground. This time-lapse photography box makes use of the sun and a Raspberry Pi to document the goings on. The rig is one of three that were built by [Patty Chuck] to record progress on a seventy acre construction site over the course of eighteen months. The gallery linked above shows off the project well, but a much more in-depth text description is found in his Reddit thread.
What’s not shown in the image is a solar array which powers the box. When they were installed there were no utilities on site. To guard against power-loss there’s a hardware RTC that keeps ticking. The Raspberry Pi uses GPIO pins to switch the Nikon D7100 camera on once every five minutes during the work day. It snaps a photo before powering it down again. It also monitors a temperature sensor and actuates circulation fans if necessary.
He’s planning to post the videos once the project’s done in 18 months. If you see them and remember this post, send us the link and we’ll post the update.