Half of a two-part project, the other part being "OBA on a Toyota."A friend of mine is making a short film which requires some simulated explosions. Since he doesn't have an explosives lisence and we will be shooting some scenes on public property and...
The Red Alert Alarm features a 3 pronged attack on your unconsciousness. First a 1000W flood light will turn on to help simulate sunlight. Shortly there after a 120db siren will go off for 2-3 seconds. This is enough to scare the bejesus out of a lot...
The idea is to make a smart lamp that can dim and switch five sets of leds, and one 230v dimmable bulb. The microcontroller detects the phase of the ac after the transformer. This will be used for both the dimming of the ac bulb. It will also...
Fermentation control is probably the most important aspect of brewing good beer. You can make incredible wort, but if you ferment it wrong it's not going to taste like you want it to. By properly controlling fermentation you're controlling the most important...
I've wanted to build my own amp for quite a while. For bass guitar, the selection of amplifiers you can buy is pretty lack-luster, and mid-volume studio amps are hard to find. It seems like most of what's available is either a practice amp or a stadium...
Currently this bad boy has two modes: hit and hold. Hit turns on the heat until the set temperature is hit, then shuts off. Hold tries to hold the temperature at the setpoint.It also has a FTDI USB to UART IC, so it can be loaded with optiboot (after...
HydraBus v1.0 Rev1.5 In Stock on DigiKey:https://www.digikey.com/en/products/detail/benjamin-vernoux/hydrabus-v1/15652912 Features of the HydraBus board: Very small board only 60mm x 37mm size (extensible with shield which can be connected on top or...
The MeArm is an Open Sourced Robot Arm. It's small, like pocket sized and that's for a reason. It can be cut entirely from an A4 (or more accurately 300x200mm) sheet of acrylic and built with 4 cheap hobby servos. It's live on our site for about $35...
A bendulum is topped with a weight. If you give the top a push, it sways back and forth periodically. The motion is much like a pendulum, except that instead of swinging rigidly from a pivot and moving the most at the bottom, the bendulum’s stem flexes...
I bought an XMS amplifier from a friend years ago and although it was serving it's purpose I got quite frustrated with having to toggle the loudness feature every time the input was changed. This was the beginning of what has now become my network enabled...
So, where I stand now. I ended up using a Mesa 5i25 PCI card and a 7i76 step/dir control card. The Yaskawa servos have pretty good auto tune so I decided to leave the PID loop up to the servo drives.Speaking of servo drives, that and the servo motors...
I picked up the vacuum system from Portland State two weeks ago from a professor I know. It was too big for the little things they do and by the time it warms up and pumps down there is no time left. So they decided to get rid of this system and build...
14.03.2014. I must admit that I was partially wrong. We just tried a more powerful stun gun 800,000 volts. We installed two sewing needles on it and pierced the carbon tape. On the needles remained voltage of about 150 volts. The person will feel the...
Media artists often need to play multiple videos on multiple screens in loop for long time. Often they also want to play all videos synced (i.e. all of them starting at the same time). Having one device (for example a computer) playing all videos requires...
In the original configuration, the airswimmer is propelled by the tail fin, which can be flapped left-to-right using the remote. The whole fish can also be tilted up or down by moving the gondola, which holds the battery and receiver, forward and back...