zedomax.com » Arduino

Earthquake DIY – How to Make a Seismic Earthquake Detector/Reflector!

max — Thu, 19 Nov 2009 01:23:18 +0000

Here’s a rather cool device you can make to let you know when there’s an earthquake anywhere around the world using Arduino and RSS feeds from USGS.gov.

Basically, the device will simulate the intensity of earthquake’s magnitude through vibrations. For seismic scientists and reporters who specialize in earthquakes, this could be pivotal in launching an emergency campaign.

As a Californian who witnessed one of the biggest SF Bay Area earthquakes in 1989 (and lived through it), I can see the value of this gadget. Plus, most big earthquakes hit after a series of small/medium ones, meaning this could potentially alarm people of upcoming earthquake too. I still remember the day when my parent’s house rocked back and forth about 1-2 feet like if I were on a boat or something for full 20 seconds. I didn’t know it was an earthquake at the time until afterwards, that was not a lot of fun as I immigrated to the US like 3 months before it.

Even today, I know there’s another big earthquake coming to San Francisco Bay Area, my prediction is around 2070 though, I think they hit this area every 90 or so years.

This project has two strands, a software and a hardware component. The aim is to build a device which responds to earthquakes being reported in near-real time via the USGS RSS feeds. The device responds by illustrating the magnitude of the reported earthquake via two fairly chunky vibration motors of the kind used in video game controllers. The device is connected to a PC via a virtual com port over USB (thanks to an on board Arduino). On the PC, an application sits there checking the RSS feed periodically and when a new event it posted to the RSS feed, the desktop app parses the data out of it and presents the magnitude of the quake to the Arduino which interpreters this as rate at which to activate the vibration motors.

via instructables

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Earthquake DIY – How to Make a Seismic Earthquake Detector/Reflector!

Lock Hack – How to Make a “Secret Knock” Detecting Door Lock!

max — Wed, 04 Nov 2009 02:30:32 +0000

Here’s an awesome lock hack that uses Arduino to create a door lock that can detect your “secret knocks” to open the door. I like everything except that people might be able to hide nearby and hear your “secret knock”. Regardless of practicality, this is a really awesome hack, perhaps the best door lock hack I’ve seen in awhile.

Seeeeecret knocks? And if we could detect a secret knock, shouldn’t it unlock a door? If you can’t tell by looking this was cobbled together from spare stuff around the lab, it’s not much more than a piezo speaker, a tiny gear reduction motor, and an Arduino. And PVC pipe.

See video of the secret knock detecting door lock in action here:

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

via gizmodo

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Lock Hack – How to Make a “Secret Knock” Detecting Door Lock!

Lifesized DIY Guitar Hero Controlled with Soccer Balls!

max — Wed, 28 Oct 2009 21:46:56 +0000

Check out this life-sized DIY Guitar Hero that can be controlled by soccer balls. (and probably any other kind of ball from what I can see)

This DIY Guitar Hero project was created using Arduino and projectors, certainly a really cool project they have done here.

An experiment to create a giant (three stories high!) guitar game controlled with footballs. Football Hero is played by a team of insanely gifted young freestyle footballers. The game is programmed with the Kasabian track Underdog.

Watch the video below for the DIY Guitar Hero in action!

via hacknmod

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

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Lifesized DIY Guitar Hero Controlled with Soccer Balls!

Arduino Hack – How to Make a Brain-controlled Device!

max — Thu, 22 Oct 2009 03:54:19 +0000

By using the Star Wars Force Trainer toy, these guys hacked it along with Arduino to control sound. I think this is actually a great way to make a brain-controlled device of all sorts.

Hacked EEG wireless headset produces a pure musical tone when a user concentrates. When not concentrating the user heres a combination of voices – one must find the right tone in their mind among chaos . Connected to Ardunio Nano, and running PD on a connected laptop to generate music. Toy parts for less than $150.

The brain-controlled music device:

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

The original Star Wars Force Trainer Toy:

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

via hackaday

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Arduino Hack – How to Make a Brain-controlled Device!

Arduino Hack – How to Make an NES USB Flash Drive! (with NES security)

max — Tue, 13 Oct 2009 04:23:23 +0000

Here’s an awesome NES hack that involves a retro-NES controller hacked as an NES USB Flash drive, also with added NES security that can only be unlocked using the NES controller itself, how brilliant!

At first, I simply wanted to turn the controller into a flash drive and be one of the thousands of videos and blogs of people turning everyday objects into external memory, but ever since I got my first arduino working, I’ve been itching to do something different. I thought, wouldn’t it be cool to add a security feature that required someone to enter the classic contra “30 lives” code before they could access the data?

via hackedgadgets

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Arduino Hack – How to Make an NES USB Flash Drive! (with NES security)

Arduino Hack – How to Make a Nintendo Keyless Entry System!

max — Thu, 11 Dec 2008 20:39:52 +0000

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

Here’s a fun hack that uses a Nintendo controller, Arduino, and CD drive to create a fun, keyless entry system.

Use a Classic Nintendo controller to lock and unlock your door! The output from the Controller is read by an arduino and it looks for a particular combination of buttons, once the combination is entered it sends a signal to eject a Cd-Rom Drive which pushes or pulls the lock. I started making this project like I always do; with what I have on hand. So if you have the same stuff lying around it can be assembled for very little cost.

source

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Arduino Hack – How to Make a Nintendo Keyless Entry System!

DIY Arduino Rotating LED Persistance Of Vision(POV) Display!

max — Thu, 06 Nov 2008 23:11:35 +0000

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

Here’s a really cool DIY that involves an Arduino microcontroller module, LEDs, and a motor to spin the freak out of the POV display. I really enjoy this except I can’t understand the language on the DIY Page.

Well, the most I enjoyed is the background music, don’t u agree?

via hackedgadgets

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DIY Arduino Rotating LED Persistance Of Vision(POV) Display!

DIY Arduino Simulated LED Flames!

max — Tue, 28 Oct 2008 00:23:56 +0000

Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

Here’s a great example of how you can make a simulated LED flame using Arduino and some LEDs. If you are looking for that special flame effect for this Halloween without all the really hazardous fire, this might be a great alternative to real fire.

The code accepts an arbitrary number of LED outputs, with a minimum brightness for the general glow. A peak brightness and traversal time are generated randomly, and the timed traversal smoothly walks across the outputs. The peak falls off, so the effect is of a smooth motion of the peak across the LEDs, to an arbitrary position along the line of outputs (as a float, rather than always peaking at a specific light). When arranged in a circle, it feels like the light is moving around the group, which casts moving shadows, and gives a flickering effect that’s much more convincing that a single light variably changing brightness.

via hackedgadget, DIY Page

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DIY Arduino Simulated LED Flames!

DIY HACK – HOWTO make some sounds with Arduino! Sound Part 3 – Playing a Melody

max — Sat, 24 Nov 2007 10:30:09 +0000

Check out the Part 3 of “HOWTO make sounds with Ardunio” and learn to play melody.

Bit-Banging Sound
To bit-bang sound we toggle an output pin at the desired frequency. To play a musical note, we need to use specific frequencies and play the sound for a specific amount of time.

Generating the desired frequency big-bang style means figuring out what the period or cycle time of the desired frequency is. This is easy to calculate, it’s the reciprocal (1/F) of the frequency. As we found in part 2, 1KHz is 1000 cycles per second. So, one cycle takes 1 one-thousandth (1/1000) of a second or 0.001 seconds (1 millisecond). We need to toggle the pin at this rate so we want to keep it low for 1/2 the time then high for 1/2 the time. Therefore we want to set the I/O pin low for 500uS, then high for 500uS and do this over and over for as long as the duration requires.

Part I and Part II

via uchobby

HOWTO make Beer Thermostat with Arduino

Here’s a cool audio and video controller DIY using Arduino.

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DIY HACK – HOWTO make some sounds with Arduino! Sound Part 3 – Playing a Melody

zedomax.com » Arduino

Earthquake DIY – How to Make a Seismic Earthquake Detector/Reflector!

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