Human activity may be the main cause of climate change, but all these cows milling and mooing about don’t help, either. everyone knows that cows produce methane-laden flatulence, but there’s another problem — their urine contains ammonia. The nitrogen leeches into the soil and turns into nitrous oxide, which is no laughing matter. So what’s…
Cornell students [Sean Carroll], [Gulnar Mirza], and [James Talmage] developed a realtime pitch shifter to run on their DE1-SoC and controlled by its ARM core. The team’s goals were to pitch-shift the left and best outputs independently, to produce chords using the original voices as well as the pitch-shifted ones, and time-delayed pitch shifting. all of it is controlled…
This jamming gripper style is the easiest we’ve seen so far. It utilizes a syringe to produce the suction needed for the orange appendage to grip an object. As with previous offerings this utilizes coffee grounds inside of a balloon. When pressed against an item the grounds flow around it. When a vacuum is used…
The people at [ElectroSmash] just recently released 1Wamp – a one watt, open hardware, Guitar amplifier packed with features. It consists of a JFET based pre-amplifier, a huge Muff Pi a.k.a BMP based Tone manage as well as an LM386 power amplifier. The double JFET pre-amp supplies tube-like sound, the BMP supplies a great tonal…
Sony recently unveiled Toio, an educational robotics toy for young programmers. we all know Sony as an electronics giant, but they do dabble in robotics from time to time. The AIBO pet dog family is probably their a lot of popular creation, though there is also QRIO, a bipedal humanoid, and on the stranger side, the…
While you’re still waiting for your Raspberry Pi to be delivered, why not build an enclosure for it? This build comes from the fruitful workshop of [builttospec], and gives the Raspi a very great case well-suited for being placed on your desktop. Like a lot of of [builttospec]’s case builds, this enclosure was made on a…
It looks a bit bit like an octocopter, however this solar-powered hovercraft is distinctly different from its free-flying brethren. It depends mainly on ground impact for operation as well as to get it just a bit into the air you requirement a quite big reflective rig nearby. The vehicle needs to be even lighter than…
Let’s get something straight ideal up front: this isn’t much of an electronics project. however it is a very creative 3D printing job that contains some electronics. [Sjowett] used an off-the-shelf class D amplifier with BlueTooth input to produce a basic BlueTooth speaker with a subwoofer. As you can see from the pictures, woofer is…
While you can get an LED matrix in any size or shape, the really cool looking ones that are best for low-res displays all have diffusors. When they come from a nameless Chinese factory, these diffusors are thin sheets of plastic set into an extruded plastic frame. considering that [Jana] has a 3D printer, she…
thanks to CERN and their work in detecting the Higgs Boson using the large Hadron Collider (LHC), there has been a surge of interest among many to learn more about the basic building blocks of the Universe. CERN could do it due to the immense power of the LHC — capable of reaching a beam…