Category Archives: Microcontroller

ZedoLOG blogs about today’s emerging Microcontroller or any type of device that is programmable here.

Arduino DIY – How to Make a Coffee Can Clock!

http://hackedgadgets.com/wp-content/uploads/2010/02/can_clock-499x461.jpg

video://www.youtube.com/watch?v=mdcWYICNql0

Looking for a new clock that can make your home more modern and stylish?  This DIY Coffee Can Clock certainly has the style and form factor which uses Arduino and matrix displays.  Well done, I love it.

For coffee lovers like me, this is BLISS!

The electronics is based on Wiseduino (Arduino clone with DS1307 real time clock on board), with a LED matrix shield sitting on top. The shield is built with 74HC595 shift reg

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Android Hack – How to Make a Serial Connection to your PC via Custom Modem!

For Android lovers out there including myself (who is a new owner of Nexus One), you might be surprised to learn that Jemej has hacked his own PC modem to communicate with his G1 Android phone.   He uses this hack to retrieve the accelerometer data from his G1 phone to use it as a game controller on his PC, neat!

And all of this, with right polarity, correctly generated samples and the right amount of volume finally produces consistent and mostly artefact’s free data tran

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DTMF Hack – How to Make a DTMF Decoder!

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You know, DTMF is probably out of use now because it’s mainly used on analog wired telephones.  When you press numbers to call someone on your grama’s telephone, you are basically making DTMF tones.

For those of you who want to mess around making your own spy gadgets, you might want to learn how to make a DTMF decoder.  I really think that you would be far better off making a GSM-hack device of some sort that

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LED DIY – How to Make Aquarium LED Lamp!

Thinking of buying new lamp for your fish tank?  Well, take a look at this custom Aquarium LED setup with a bunch of high output LEDs, ability to control its dimness, temperature watch, and more.  I think this LED project could be easily extended further as a whole aquarium controller including ability to control the tank’s heat, feed the fish, and more.  Well, I might be getting ahead of myself but why not?

The tank is a Fluval Osaka 320 and measures 48″(L)x18″(W)x24″(H) and is currently running 4 x 54w T5’s. The rock is arranged in 2 “

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Circuit DIY – How to Make a Digital Light Dimmer!

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For those of you who want to control dimming of your house lights “digitally” using a single seven-segment display to show its brightness, you might want to take a look at these free circuit schematics on making a digital light dimmer.  It’s not in English but the code could still be very helpful. (Blog post in English)

The light level can be adjusted with two push-buttons

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DIY Web-Powered Robot!

http://hackedgadgets.com/wp-content/uploads/2010/01/io_bridge_web-robot-500x405.jpg

Thinking of building a DIY web-powered robot that you can control through your browser or smartphone?  You might want to check out ioBridge ethernet control modules and this DIY web-powered robot made using them.

The robot uses a pair of serial bluetooth adapters to form a wireless link with the ioBridge IO-204. The serial levels of the IO-204 are TTL and a circuit u

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Arduino Hack – How to Make an Accelerometer Controlled Music Player!

I like to play with my friend’s old-skool DJ instruments, well, here’s one you can make that’s exciting as you can control the music with your motion!  Looks pretty complicated but it does seem a ton of fun once you are done making it.

For my Physical Computing and Max MSP finals, I made a controller that uses an ADXL 335 Accelerometer and an Arduino board that communicates serially with Max MSP. The Max MSP patch is a simple sequencer that allows for delay on all tracks.

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Circuit DIY – How to Make a Volt-Meter Clock!

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For those of you who are thinking of ways to make a new clock for your home, try learning how to make one of these fabulous volt-meter clocks. Not only will you add some smarts to your home, wow your friends by showing your true intelligence, “see, I made this myself!”

The clock is patterned after an analog voltmeter.  The meter pointer indicates the time on a meter scale marked in hours, with quarter divisions indicated.  The pointer, driven by a servo motor, starts at 12

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GSM Hack – How to Make GSM Car Starter!

Here’s a guy who put together a cheap cellphone and GSM-enabled relay to make a GSM car starter, meaning he can start his car by calling a number.  The creater used GSM relay unit which says it cost him $199 but I think if you buy the GSM unit and relay separately, he could have saved even more money.  (I’ve done a similar project here, all you would have to do is add a relay to that and it would be a GSM relay unit btw.  That one you

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Atmega DIY – How to Make a Temperature Sensing Relay Module!

For those of you who want to make a simple temperature-sensing relay module (to control AC/DC and whatnot), you might want to take a look at this DIY that uses DS1621 and Atmega ATTiny2313 microcontroller.

It contains only a few parts, a DS1621 temperature sensor, a attiny2313 micrcontroller,three LED’s one relay and some resitors. I have made a little printed circuit board for it.

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