Posted November 23, 2012 by Chris

“The LED panel is composed of 8 individual panels of 4×4 LEDs. Each group of 4 such panels will be controlled by a MAX7219. Here are the schematics and board layouts of the 4×4 LED board and LED driver.”

Posted November 22, 2012 by Chris

Last week, we released the fourth lesson of the first PyroEDU course: An Introduction To Modern Electronics. This week we’re introducing the third and final basic circuit component: The Inductor.

The third and final component of what is known as the basic types of passive electrical components is called the inductor. In this lesson we take a look at the inductor’s alternative method of storing electrical charge that, while simliar to the capacitor, is done in a magnetic way.

Posted November 21, 2012 by Chris

“I present this new Arduino project: A full MP3 player based on Arduino.
As you can see in the photo, the idea was to build a standalone player, in the style of antique radios or ‘tapes’, in the age of Iphones ….”

Posted November 20, 2012 by Chris

“So I’ve done persistence of vision displays before; there’s really nothing new there. The challenge this time was to make it small enough to fit on a 72mm longboard wheel, and to make it cheap enough so that I could mass produce it and sell it to folks in the area.”

Posted November 19, 2012 by Chris

“There are various touch sensors in different method, such as resistive (conductive film), optical (infrared), acoustic (SAW), capacitive and etc. This project is an experiment of capacitive touch sensor. This kind of touch sensor is well known as pointing device used in portable PCs.”

Posted November 18, 2012 by Chris

“I am strong proponent of customized embedded systems; a single piece of hardware aimed at solving a single problem. If we have a particular task that is time intensive, repetitive, difficult to configure and somewhat ‘shady’, it is probably best to execute it in hardware. Lets consider a tool for recovering passwords from PDF-files.”

Posted November 17, 2012 by Chris

“My first project using the EZ-USB microcontroller was the ‘EZ1’ test board in 2001 with two MAX521 8 channel DACs, a MAX127 8 channel 12 bit ADC (both with I²C interface), a RS232 connector and one for the Infineon FingerTip sensor as well as two LEDs. If you don’t have JTAG for debugging, two LEDs is the absolute minimum to trace the program execution.”

Posted November 16, 2012 by Chris

“This project allows you to fabricate, with your own hands, a high quality stereo-zoom microscope, an instrument very useful for observing natural samples. As a bonus, it will serve to instill in young people, as well as adults, an interest in biology.”

Posted November 15, 2012 by Chris

Last week, we released the third lesson of the first PyroEDU course: An Introduction To Modern Electronics. This week we’re introducing the second basic circuit component: The Capacitor. After getting a nice introduction to the resistor, it’s customary to learn about the second most common component in electronics, called the capacitor. This lesson performs some cool experiments and introduces the basic idea of storing electrical charge with capacitors.

Posted November 14, 2012 by Chris

“After completing my first Security Bot, I had come across the DFRobot 4WD platform. Once viewing some projects made with it, I was inspired for my second creation. This time around I decided to cram as many sensors into it as possible. My goal was to make this my main robot that I could continually expand upon.”