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Some Thoughts On Mixing Digital Audio
Mixing audio in the digital realm has some inherent limitations. These limitations become more pronounced the less data there is to work with (i.e. low sample rates etc.). We found an article by software developer and author Viktor T. Toth that addresses some of these issues. In real life, when you hear audio from two…
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How To: Using State Machines With FPGAs
We found a great article by Adam Taylor (Principal Engineer, EADS Astrium) that illustrates in detail how to implement state machines with your FPGA board. For anyone that is interested, Mr. Taylor provides a comprehensive tutorial on using the two classes of state machines (Moore and Mealy), state machine definitions, state machine encoding, and much…
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ZPUino Linux Framebuffer
Ah, the start of another week. Let’s see what’s in the news around here. Well, we’re getting word from Alvie over at his ZPUino page that we are getting closer to a Linux implementation of ZPUino. The picture above is an example of a video framebuffer running on physical hardware. ZPUino also now has video output…
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Arduino Powered Cat Feeder Feeds Cats, Has Lasers
We’ve got a cool video here to ease your Friday boredom and hopefully ignite some creative sparks! This one is all about hooking your pets up with some hacker-style technology, in this case cats. According to project creator Andres Leon, this is an “Arduino-based laser controlled wireless automatic cat food dispenser.” Yes, that’s a mouthful,…
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Pi Store App Market Launches For Raspbrry Pi
For anyone who didn’t already know, Raspberry Pi recently launched their own app store called the Pi Store. The Pi Store runs as an X application under Raspbian, and allows users to download applications for the Raspberry Pi, as well as to upload their own content which can then be approved for release on the…
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First Steps With Papilio One & Breadboard
Dave over at Whiley.org just got his new Papilio One and decided to document some of the first steps he’s taking with the board. His endgame is to take the Arduino-based tank robot he’s made and eventually power it with his shiny new Papilio. These are some of his efforts so far. The question is:…
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Master’s Projects From Cornell: Gaze Tracking & FPGA Face Tracking
Happy Friday! We’ve got some fresh Master’s projects from Cornell University’s electronics school to share with you today. We’ll get right into it: This first project is by Master’s students Anil Ram Viswanathan and Zelan Xiao, who have created a head-mounted eyeball gaze tracker, for lack of a better term. The hardware consists of two…
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8-Channel Homebrew GPS Receiver On FPGA
Andrew Holme has created a totally made-from-scratch GPS receiver that can track up to eight satellites, all powered by FPGA. Andrew’s creation has been in the cooker since early 2011, and he has been refining it ever since. Pictured above is the front-end, first mixer and IF amplifier of an experimental GPS receiver. The leftmost…
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