Marcelo Rodrigues's Blog (19)

IBM Making Silicon to Sort Viruses and Other Nanoscale Biological Targets

With nanoscale DLD, the researchers can take a liquid sample and pass it through a silicon chip especially designed with an array of asymmetric pillars. This pillar array separates particles by size down to tens of nanometers…

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Added by Marcelo Rodrigues on August 2, 2016 at 6:59am — No Comments

SwagBot

Added by Marcelo Rodrigues on July 19, 2016 at 6:26am — 1 Comment

Arduino Vending Machine

Ryan made a vending machine using Arduino, 4 servos and a Nokia 5110 LCD. Cool stuff! He also shared the circuit and code. Check it out!…

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Added by Marcelo Rodrigues on July 1, 2016 at 5:25am — No Comments

World's first robotic 3D printing system

Added by Marcelo Rodrigues on June 30, 2016 at 6:08am — No Comments

3D Printing Hair!

Cilia–the microscopic basic hair-like structure that covers all mammalian cells–has numerous functions. As a natural interface between a living organism and its environment, hair provides warmth and adhesion; it senses vibration and touch, and it’s responsive in terms of navigation and movement. Plus, hair has…

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Added by Marcelo Rodrigues on June 29, 2016 at 1:49pm — No Comments

Boston Dynamics presents new robots

Boston Dynamics, one of the companies who develop the most advances robots in the world published new cool videos with their new robots.

The SpotMini looks…

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Added by Marcelo Rodrigues on June 27, 2016 at 7:13am — No Comments

Super Fast 3D Printer for Production

http://carbon3d.com/

Added by Marcelo Rodrigues on June 9, 2016 at 12:00pm — No Comments

Leonard Nimoy, Star Trek's Mr Spock, dies at 83

Photo Credit: Gage Skidmore

Leonard Nimoy, Star Trek's Mr Spock, dies at 83

US actor Leonard Nimoy, who played Mr Spock in the cult sci-fi series Star Trek, has died at the age of 83…

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Added by Marcelo Rodrigues on February 28, 2015 at 4:30am — No Comments

eDavid the robot painter excels in numerous styles

The line between art and technology isn't just being blurred, it's being erased altogether. Painting and sketching from photographs and life, for example, is a technique that is now being mastered by robots. The latest, called eDavid, combines a camera, computer vision software, and a standard welding robot arm to skillfully recreate (in a variety of styles no less) any image…

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Added by Marcelo Rodrigues on July 18, 2013 at 6:55am — No Comments

ISS Labs

More videos on...…

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Added by Marcelo Rodrigues on May 5, 2013 at 4:02pm — No Comments

ATmega328 Overclock (30MHz)

Hello everyone,

This is more fun oriented project than something useful (or not) since ATmega328 was not designed for clock frequency above 20MHz (see datasheet). So, 30MHz is push it far from the limit. :)

Besides, I…

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Added by Marcelo Rodrigues on December 23, 2012 at 1:56pm — 3 Comments

What's engineering anyway?

Added by Marcelo Rodrigues on June 1, 2012 at 7:43am — 1 Comment

OLED Pushbutton





Searching for TFTs I've found this. Have never heard about it, but look…

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Added by Marcelo Rodrigues on April 8, 2012 at 6:32pm — 2 Comments

Arduino generated VGA (color) signal - Complete!

Hey guys,

By the picture above we can notice that the problem with the black area was solved, and now, the entire screen is filled, so we can print on any corner (640x480 @ 60Hz). The problem was the interrupt function, the time of calling and returning was taking so much time for an ATmega328, I…

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Added by Marcelo Rodrigues on April 4, 2012 at 3:00pm — 26 Comments

Arduino generated VGA (color) signal

Hello everyone, 

Going forward on my study about VGA signal, now I could generate the sync signals (horizontal and vertical), and also play with the RGB ones. Now I can generate vertical color bars and rectangles. :)

I am still facing some problems, like to fill the entire screen area…

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Added by Marcelo Rodrigues on March 21, 2012 at 3:21pm — 1 Comment

WebServer for Arduino without EthernetShield (with PC/Apache/PHP)

Hey guys!

A lot of people ask how to connect Arduino to internet, so it can interact getting data from the internet and actuating physically. Let's say, turning a light on/off, open/close a garage door, turning the coffee maker on. :)

To do this, we could use an EthernetShield, giving the "power" to Arduino access the internet. Or we can leave this power to a PC, which already have it, and then the PC, through the USB, will send the info to the…

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Added by Marcelo Rodrigues on March 11, 2012 at 12:12pm — 3 Comments

4Mhz with Arduino

Guys,

As the discussion on the forum, I'm trying to generate VGA signal (color) with an Arduino UNO.

To avoid the…

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Added by Marcelo Rodrigues on March 6, 2012 at 2:30pm — No Comments

Arduino ARMed

 



This year 2 new Arduinos will arrive. Arduino Leonardo, based on a ATMEGA32U4 chip, which would be a low cost platform, with built-in USB and the promising Arduino Due. The Due will have a powerful ARM processor, that will remove most of the limitations from the standard version. From the press release:



"* Arduino Leonardo. Based on the Atmel ATmega32U4, it is a low-cost Arduino board which includes a simpler…
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Added by Marcelo Rodrigues on March 4, 2012 at 6:31am — No Comments

Latest Activity

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Muhammad Ali commented on Marcelo Rodrigues's blog post Arduino generated VGA (color) signal - Complete!
"Thanks for the advice. I will persist with the code till I get it done. thanks once again."
Apr 18
Marcelo Rodrigues commented on Marcelo Rodrigues's blog post Arduino generated VGA (color) signal - Complete!
""The output waveforms on oscilloscope for Hsync and Vsync and for that matter RGB pins are not…"
Apr 17
Muhammad Ali commented on Marcelo Rodrigues's blog post Arduino generated VGA (color) signal - Complete!
"Hi  Marcelo I am trying to make this code work with Attiny 44a operating @ 20 MHz. I have…"
Apr 17
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Marcelo Rodrigues replied to FiniousFingers's discussion New to group
"Yes, please share your progress here. Thanks and good"
Mar 27
FiniousFingers replied to FiniousFingers's discussion New to group
"Thanks, good to know someone is out there. I will be…"
Mar 27
Edward Evans replied to GarageLab's discussion Serious claims against BeagleBone's manufacturer CircuitCo
"Have you moved forward with any action?  I would be interested in discussing your…"
Mar 27
Marcelo Rodrigues replied to GarageLab's discussion Serious claims against BeagleBone's manufacturer CircuitCo
"Ed, No, they didn't deliver yet.  :( Good luck for us all."
Mar 23
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