Posted December 4, 2014 by Chris

"This weekend didn’t afford me enough time for personal projects, but I did have a few moments to solder connections onto the LED system on the RC police car I’ve been modifying."

Posted December 3, 2014 by Chris

"I’ve simply connected the UART of the bluetooth module to the built-in UART module in ATTiny2313 so they can communicate directly with one-another. A portion of PORTB is used to control the various functions in the model car. The ATtiny2313 firmware goes through a loop which consists of reading the UART, and then setting the outputs and servo position."

Posted December 1, 2014 by Chris

"The following is my entry of a small 3-axis CNC robotics platform into the African Robotics Network (AFRON) Ultra Affordable Educational Robot 2013 Design Challenge. The Tiny CNC robot, despite its minimal design, is a versatile 3-axis CNC robotics platform which can be customized to perform a variety of useful functions. To demonstrate its versatility, I have augmented it with a pen to serve as a small drawing robot. "

Posted November 30, 2014 by Chris

"It can be a little expensive to read analog signals, for example temperature readings or light levels, into your computer. In this article we will show you (1) how Linux can use a computer parallel port and a $10 integrated circuit to read 8 analog channels at 12 bit accuracy, and (2) how we used this to build the Extreme Comfort System."

Posted November 29, 2014 by Chris

"I went a little further by adding an IR LED array that I happened to have lying around…I mounted the camera board right behind it and cut a short length of black plastic tube that fit in the center of the array to prevent back-scatter of light when the LEDs are on."

Posted November 26, 2014 by Chris

"For independent study in MAT this quarter I sought to implement the Open Sound Control protocol on the mbed. This involved getting UDP send and receive working on mbed and then setting up a parsing / callback system that can take an incoming message and delegate it to the proper subsystem. "

Posted November 25, 2014 by Chris

"Like the Arduino, the USB6 allows you to control robots, make electronic instruments, talk to sensors and interface with the internet. The main difference is that you *buy* an Arduino. You make a USB6. This is good for people who are more interested in the hardware side of things. For example, would you like to learn what capacitors look like? Would you like to try out some board etching techniques, especially alternatives to Ferric Chloride, like Hydrogen Peroxide, etc?"

Posted November 24, 2014 by Chris

"To put it simply, it’s a robot arm that copies you. Think motion capture, but the results you see in real time on hardware…I did not build this thing in mind with any one specific application. What I wanted was an intuitive interface for controlling a robot. This robot could then be sent out into situations that humans can’t or shouldn’t go. "

Posted November 22, 2014 by Chris

"In this project, as promised before – we are going to demonstrate a PIC18F4550 microcontroller interface to IR sensor circuit….however you can do some more intelligent operations by adding some more logics to the microcontroller coding. Interfacing infrared Proximity sensors with Microcontroller is quiet easy."

Posted November 21, 2014 by Chris

"OK, it’s made on more one board, but you get the point. Based on Grant’s 7-chip Z80 computer, it uses his modified version of the NASCOM computer version of Microsoft BASIC running from an 8K ROM. The remainder of the Z80’s 64K address space is taken up with 56K of RAM."