301 Moved Permanently

Posted May 4, 2013 by Chris

“Cardbot is a functional robot made from laser-cut corrugated cardboard. It is battery powered and wirelessly controlled over 802.15.4 (Zigbee.)….I had the idea that I could build a kit for a robotic base, itself a press-fit assembly kit, that could also serve as a mobile base for other press-fit constructions.”

Posted May 3, 2013 by Chris

“The goal of our project is to create a VGA video adapter. This ‘homemade video card’ should be able to connect to any monitor that subscribes to VGA standards with a standard connector and display the desired material reliably. The challenges involved here stem from adapting a general use microprocessor that we are familiar with to a specific task…”

Posted May 2, 2013 by Chris

Time for another new lesson on PyroEDU’s current course: Introduction To Digital Electronics course and it’s called Clocks and Oscillators. Here is what this week’s lesson is all about:

The heart and soul of any digital system is the main clock signal. It drives every single flip-flop that is inside of the system and therefore it is the most important signal. In this lesson we will learn how to use a 555 timer as a clock signal generator and we will also look at using crystal oscillators to generate clock signals.

Posted May 1, 2013 by Chris

“This device acts as interface between your microcontroller project and a GSM phone. It handles all modem data communication between the GSM phone and your micro-project. The best thing is that it decodes PDU into TEXT on the fly!”

Posted April 30, 2013 by Chris

“I am trying to interface an LCD panel from a vintage 486 Compaq Contura 420cx to the VGA port at 640×480 resolution with 3 bits of color (one bit per color — RGB) for the purpose of displaying data from my upcoming ENSURE-2 near-space project.”

Posted April 29, 2013 by Chris

“Rarely a month goes by without an article in SERVO Magazine describing the communications needed to control an analog R/C servo, so I will keep the review short. There are no official standards on R/C servos, so many aspects of their operation vary from manufacturer to manufacturer, or even for different product lines from the same manufacturer.”

Posted April 28, 2013 by Chris

“I put together this Pong demo as an exercise to help get more familiar with Verilog, and gain some experience working with the Xilinx tools and the Spartan 3A FPGA starter kit. It was very slow going at first, but things are slowly beginning to make sense to me now. And hey, I’ve got Pong!!”

Posted April 27, 2013 by Chris

“Evertool is an AVRISP/STK500-protocol and JTAGICE compatible Programmer/JTAG debugger. It has the following features: ISP Programmer compatible with Atmel AVRISP, directly accessable with AVRStudio and avrdude. JTAG debugger compatible with Atmel JTAGICE, directly accessable with AVRStudio and AVaRice. Simple hardware, standard parts.”

Posted April 26, 2013 by Chris

“As shown in the schematic, temperature sensor of our electronic thermometer is LM35DZ. There are some kinds of LM35 IC, since it is cheap and easy to find we used LM35DZ in our project. It measures from 0°C to 100°C with a very linear output graph. For one degree change, it increases its output 10mV.”

Posted April 25, 2013 by Chris

It is time for a new PyroEDU lesson in our Introduction To Digital Electronics course and it’s called Digital Flip Flops. Here is what this week’s lesson is all about:

To take another gigantic step into the world of digital electronics, we need to learn about flip-flops. In this lesson we take a look at two types of the flip-flops, the JK and D flip-flops. To learn what they are and how they work, we will put them in some experimental circuits and see how they react. Additionally, we will start to learn about digital clock signals.