Posted July 28, 2012 by Chris

“I had this cool idea for a prank at the office, a device that generate sound every 6 minutes. This device generates 4 different sounds at 6 minute intervals. The idea is that the sounds are short, familiar, difficult to find and infrequent enough to prevent a hunt for the offending noise.”

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 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 11, 2012 by Chris

“About one month ago I had a request to write about break-beam sensors. So, here it is! Well, basically break beam sensor consists of two parts: transmitter and receiver. Transmitter emits light and that light goes to receiver. If that light beam between transmitter and receiver is broken by some obstacle, and receiver detects no incoming light even for a brief moment – it triggers an alarm.”

Posted July 10, 2012 by Chris

“A microcontroller driven doorbell circuit with features: One second instant pulse output, One second delayed pulse output, Two minute lighting output, Latching has been triggered indicator, Processor alive indicator, Ignore additional trigger for preset duration.”

Posted June 25, 2012 by Chris

“The aim of this project was to build an MP3/WAV player using just a FPGA, some RAM & a stereo DAC. The project consists of a custom 32-bit soft core processor running at just under 60MHz which decodes the MP3 algorithm in software with no hardware acceleration apart from a single cycle Xilinx multiplier unit.”

Posted June 22, 2012 by Chris

“This honours project was aimed at the design and build of a robotic violin player. ‘Robofiddler’ plays notes by placing one of a total of 6 mechanical fingers on the fingerboard and then striking the bow across one of the 4 strings. Tunes can be entered on a host computer and downloaded to the microcontroller based robot.”

Posted June 21, 2012 by Chris

“PreenFM is a set of electronic components and C++ files that,
when put together become a Frequency Modulation sound module with 9 different FM alogorithms with up to 6 operators. Each operator includes one oscillator and one ADSR enveloppe.”

Posted June 1, 2012 by Chris

“Our project is Air String, a synthesized string instrument that can be played in real time by waving fingers with bright green color tips in motion of stroking a string in front of a camcorder. Our implementation is based on Karplus Strong algorithm.”

Posted May 22, 2012 by Chris

“In this article Bernard Klinc demonstrates audio playback using the dsPIC on a simple breadboard layout with a free code library for SD card access from Microchip.”