This post was guest posted by Joe from HackNMod. (Do you have a tech blog and want to guest post? Send an email to zedomax at gmail.com)

With technology rapidly evolving, light emitting diodes are in virtually every single electronic device on the market. They don’t produce any heat, consume less power, and emit brighter light than conventional bulbs. Furthermore, they are incredibly inexpensive and are easy to solder, allowing any inventor to utilize them with ease.

1. New to LEDs? Not a problem, everyone has to start somewhere. Learn how to solder them, then build a few beginner projects. These three projects are great for anyone just getting into electronics and wiring.

2. Using a standard digital camera and a few infrared leds,you can make your own, high quality Night Vision Security camera for about $5.

Check out this cool little hack, it’s an open-source motor controller for an electric bike. There’s no pictures of a finished version but can’t wait to see this circuit in action!

n brief the PicOx is a PicAxe 08M based digital Controller that performs an ADC of a Hall-effect throttle and an ADC of a Hall-based current sensor. These two parameters determine the “Mark” value of a 15Khz PWM signal that does the switching to the Output stage. At the end of the project the Controller can sustain 48V @ 75 Amps repeatedly for approx 5 second bursts and is really only limited by the In-Line breaker that cuts the supply voltage, though the entire system’s overall design objective is met reliably at 48V 50Amp operation…

via HackedGadgets

This one deserves our attention due to the fact that the creator is ‘masked’ to protect his online identity. Just kidding, this DIY is about how to make an NES Game Cartridge, (that’s right, I bet you got one of those in your garage somewhere) into a HarmoNESica.

Basically, it’s a Harmonica, but you can make it look cool. These days, people will making anything out of NES controllers, cables, and now…cartridges.

Watch the video if you want to see it in action. (Looks like he made this to promote his favorite NFL team.)

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That’s a NES cartridge and a harmonica. I think you know where this is going. This is going exactly where the intersection of nostalgia and commercialism should have gone like ten freaking years ago. I’ve googled all sorts of combinations like “NES harmonica” and “nintendo harmonica” and “NES cartridge instrument” and I can’t find anything like this. Everybody talks about blowing on the game like a harmonica, but as far as I know I’m the first person on the Internet to actually use a harmonica.

Mint chocolate chip ice cream provided for scale.

I began my journey with what I thought was a solid plan. I had a cart I was willing to bust open, I had a harmonica I had purchased specifically to be busted open, and I had a brand-new Dremel to bring the magic. There’s also a package of Dremel drill bits and a bag of #4-40 3/4″ bolts with included nuts…

[via] monthenorium.nfshost.com

Related Posts on Zedomax.com:

NES Wallet!?!

NES PC?!?

Related Posts on Zedomax’s Friends’ Blogs:

NES Espresso Machine….yummy…

NES MP3 and Speakers…lol

NES Clock! - I like this one a lot…very functional…

NES Zelda Cartridge harddrive…that’s right…HardDRIVE!?!

Do you know of any other NES hacks or DIYs?  Leave a comment and we will add yours.

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Haha, this one is cool one to have.

The curtain control system is an existing system from Goelst and is called “G-Rail 6200″. Normally it is controlled by infrared or wallswitches. However, it can also be controlled with a CAN bus. I used this CAN bus to interface with an old PC.

via HackedGadgets

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Ever thought of turning electrical waves floating in the air into electricity? Well, here a guide if you need it.

This is btw, similar to the new “wireless” batteries that Phillips is working on.  (i think it’s phillips…)

via HighT3ch

Here’s a good one on how to build your own in-car PC! Although I wouldn’t recommended as people woud probably rob you as quickly as you install it.

As a marine electrician I’ve installed a few desktops in yachts to avoid the above mentioned problems so when I bought a used Grand Caravan in July and it had this empty space between the front seats I thought, why not? The first task was to measure the distance between the seats and see if anyone made a case that could fit there.

via HackNMod

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Here’s something you can make to torture your neighbors. Well…j.k.

Imagine there is a famine and you are back to the hunter-gatherer times. If worst comes to worst and you need to catch a rabbit, a rat or anything that is digestable or anything that has to be hunted, you will need a weapon to serve you under those harsh conditions.

via High T3ch

Check out the Atmel AVR temperature controller hack, although I made a better one last year that can be controlled via ethernet, the case looks awesome!

Wine doesn’t like subzero temperatures, and during wintertime, my “winecellar” got pretty cold.
There was an electric heating element, but the thermostat was broken, so it was either full burn or nothing.

That’s how the temperature monitor/controller came to be.
It was an obvious task for a small processor and I’ve always wanted to test the Dallas temperature sensors.

So, I designed this little device which could monitor the temperature and control the heater.

via Aboutmicrocontroller.blogspot.com

Cool, this guy’s on TV for tryin’ to build a nuclear reactor. Too bad he didn’t have a SiteHoppin.com shirt on… :p

Apparently bored of his amateur game-building hobby, he decided to try to make a small-scale nuclear reaction in his room, blogging his antics on the web.

Someone blew the whistle on him when he made claims about uranium and doubling the normal background radiation count in his room, and the Nuclear Regulatory Commission raided his home. He won’t be getting his Darwin Award or even arrested, though, since the Feds didn’t find anything dangerous.

They did take away his toy though, embarrassingly because his parents asked them to. Defending his experiment in an interview he argued “People do it in universities all the time, it’s just not usual that somebody does it outside of a university”, which is pretty true, after all.

via Gizmodo

I’ve summed up all the tech blog on Entrecard on SiteHoppin so you can use the following link to “site hop” tech blogs:

http://SiteHoppin.com/Special:Random?tags=entrecard-tech&mode=2

We will be doing a special, “Site Hoppin’” through all Entrecard tech blogs and (hopefully) get an interesting post per each one.

Check out this AVR Oscilloscope. Nice hack…

This is one of great project based on AVR microcontroller. It use ATmega 32 as processor and LCD 128×64 pixels for display. If you need to measure low frequency i thought this project, AVR oscilloscope, will be usefull. Maksimum frequency for AVR oscilloscope is 5 kHz (square signal), other signals (sine or triangle) the frequency is lower ( almost 1 kHz) for having clear view of the signal. Voltage input range is 24V AC / 30V DC.

via Aboutmicrocontroller.blogspot