Frequency, waves, and sound has always been one of my deeper tech interests. Here’s an art exhibit that uses exactly that, frequency of singer’s voice is used to drive motors that are activated based on frequency and volume.
The resulting 3D effect of frequency waves are amazing in this DIY example, I think this could could be one of the coolest gadgets I’ve seen in awhile.
Each string in the arrangement is activated by a different audio frequency, and will spin with
Ever since I got my Nexus One phone that runs Android 2.1, I have been thoroughly enjoying its voice-recognition feature to help me do more things on my phone while I am driving. I guess that’s not the only good use of the Android phone, here’s a cool Android hack that shows you a DIY robot can be controlled via voice too using terminal emulator to run a single-line python program.
The Android platform comes with voice recognition built in, and thanks to the Android
Here’s a hack from the guys at Hackaday showing you how to make a mains crossover cable that will allow you to transfer your AC power from one plug into another AC “source”. For example, if you have a tool shed in your yard and you wanted to transfer AC power to another AC “source”, this could be very useful.
Of course, don’t forget that you should read up on exactly how AC power works as doing it wrong could be *highly shocking* indeed. A
Natural disasters have caused a ton of damage to home owners, businesses, and even the government. For floods, the Department of Natural Resources of Australia and Penguin Labs have devised a DIY flood-triggered automated camera system that would takeimages of a cave flood (when it floods) in order to study the water flow and how it affects the environment. Mainly, a “water switch” is used to detect water in the device with solar power to keep the device charged with power.
A water flow gaugin
Here’s someone who used Arduino and a bluetooth module to create an e-mail alerting T-shirt that receives number of new e-mails you have via an Android phone. Very clever and great idea as you can easily convert it into something like an e-mail alerting box that could prove to be very useful for people who need to be constantly checking their e-mails. Best part is that the author has provided free source code
For those of you trying to build your own text-messaging alarm system for your home, you might want to take a look at this guy’s DIY text-messaging alarm system that uses a camera, servos, and texts to your phone whenever a movement is detected.
Of course, for just motion detection, I think you can use motion detector instead. You can also take a look at my experimental alarm system I made couple years back
video://www.youtube.com/watch?v=E3keLeMwfHY
“Turing machine” is a theoretically machine (or theory) made by Alan Turing back in 1930s to demonstrate the computer algorithm. Using a Parallax Propeller chip, servo motors, and obviously lots of hard work, Mike Davey has actually built a physical version of the Turing Machine by Alan Turing.
Incredibly detailed, this is a must-see for all college engineering students an
video://www.youtube.com/watch?v=oOgc-rzm_hM
Here’s a cool DIY secret box that you can open using combination of numbers by rotating it like a dice. Of course, there’s no further details on the build but a cool device to build to store all your secrets.
They were created years ago but he just recently got them online. They are both built around PIC microcontrollers and the code was written in native ASM machine language. The first one is a 6 sided box in the form of a dice, you need to roll the dice in a way that a certain pattern of number presented on top to ope
For those of you trying to make your own DIY 3D milling machine, take a look here, a great resourceful site for that.
The CNC project also included the design and construction of three independent forced air cooled twenty six volt five ampere power supplies, Three MOSFET’s based unipolar chopper drive circuits, A Digital high speed ISA bus interface, several Analog to Digital and Digital to Analog boards, Time base circuitry, and all of the associated wiring and circuit board c
Wow, here’s something that’s gonna really blow your mind, you can actually learn how to make your own OLEDs (Organic Light Emitting Diodes)!
I guess the process isn’t hard as it seems plus once you master this art, that means you can make your own custom LEDs for your projects. I, for one will try this in the near future for my LED projects. (or is it OLED projects now?)
