Posted July 27, 2012 by Chris

“Mildly unsatisfied with my earlier, more obvious solution for using an electronic drum kit to play Guitar Hero World Tour (that is, just changing a few MIDI note settings), I’ve put together a solution I like better – a microcontroller which filters the MIDI signal between the drum kit sound module and the GHWT controller.”

Posted July 26, 2012 by Chris

“This article will use the same theory from the microcontroller version of fading LEDs but we’ll use the CPLD Dev Board seen last in the connected ADCs to FPGAs article. There we connected up a 10 LED Bar which we will use in this article to show how to create that fading-in and fading-out effect via PWM.”

Posted July 25, 2012 by Chris

“This project has three parts. The circuit board is made in Part I. Part II involves building the base for the keyboard. The base is a wooden platform that contains the ‘keys’ or switches that activate various tones, and provides a mounting surface for the circuit board, speaker, and battery. In Part III circuit board is attached to the base and the keyboard is assembled and tested.”

Posted July 24, 2012 by Chris

“This is my favourite project, its too simple and very interesting because it does not require any voltage source 😀 it converts RF frequency waves from cell phone (whenever you call or send a text) to little current to flash a LED.”

Posted July 23, 2012 by Chris

“This is a little art project I made with 95 RGB LEDs arranged in a 3D cylinder shape, sitting atop a microcontroller-based driver circuit. The LEDs are individually addressable, and when you power it on, the software cycles through a series of animations, e.g. various moving rainbowy patterns, ‘rain’, ‘fireworks’, and so on. It doesn’t serve much of a purpose but it is kind of cool to look at.”

Posted July 22, 2012 by Chris

“It’s been too much time without writing here and I have many ideas but little time to get them built and documented. This time I’ll do a typical programming exercise, the ‘Game of Life’ by John Horton Conway.”

Posted July 21, 2012 by Chris

“The idea came to me after seeing Sprite’s minimalistic version of the Hackaday’s Flickering LED circuit. It’s a simple circuit that flickers LEDs and detects darkness. I thought that this could make a great little Advent wreath. My version should have 4 LEDs and should be support first, second, third and fourth Advent.”

Posted July 20, 2012 by Chris

“In this tutorial we will see how to make simple infrared sensor module for detecting reflecting surface. This sensor can be used to detect reflecting silver/white strip, obstacle detection, flame detection, etc. These sensors are primary requirement of any simple line follower robo-car.”

Posted July 19, 2012 by Chris

“This is an IR remote control for Nikon cameras. It is compatible with the Nikon ML-L3 remote control…The circuit is extremely simple: an ATtiny13V, button, transistor, resistor, IR diode and 3V battery. You could even omit the transistor and resistor, and connect the IR diode directly to the ATtiny13V, but that will limit the LED current and therefor the range.”

Posted July 18, 2012 by Chris

“For our ECE536 final project, we have implemented real-time sobel edge detection. Traditionally, sobel edge detection is done on still images. This project uses a 2MP camera to continuously capture an image stream, and sobel edge detection is performed real-time on an FPGA and displayed to a VGA monitor. Our motivation arose from our interest in computer vision and digital image processing.”