Posted August 6, 2014 by Chris

"Essentially, I wanted to be able to control a little robotic arm / turret using a PC with a serial port. I thought this was a worthwhile project because I could later adapt it to aim a webcam, Nerf toy gun, or maybe even a felt pen so it could draw pictures."

Posted August 4, 2014 by Chris

"Here’s a cheap way to build your own fully customisable infrared PC remote control. If you already have a suitable infrared remote control going spare you can build one of these for under £4, it will allow you to use most infrared remote controls to issue keyboard commands on your PC."

Posted August 3, 2014 by Chris

"This is development board designed by me for the ATmega8 microcontroller. It is a miniature ARDUINO. You can burn your bootloader and then use with Arduino IDE or you can simply upload your hex file using DAPA programmer circuit."

Posted August 2, 2014 by Chris

"This is development board designed by me for the ATmega8 microcontroller. It is a miniature ARDUINO. You can burn your bootloader and then use with Arduino IDE or you can simply upload your hex file using DAPA programmer circuit."

Posted July 29, 2014 by Chris

"When i saw simpleavr’s implementation of usbtiny on attiny45 , i thought it would be cool if i make a kit version of this with a minimal form factor. Then i designed a PCB and sent for first prototype. Later on i thought, if i want to sell this, it would be much cooler ,and more suitable with “Open Source Hardware” concept, if i bring this project one step ahead. So i tried to fit anything extra to the device and this Little Wire project came out."

Posted July 19, 2014 by Chris

"I spent my evenings over Memorial Day weekend working on a customized fixture designed to make programming and testing the electronics of our Question Block Lamp really easy. As part of our plan to bring the lamps back into production, we decided that a custom programming fixture would go a long way towards helping our outsourcing partner get exactly what we want quickly and without the difficulty of communication."

Posted July 8, 2014 by Chris

"The purpose of this project was to design and implement a digital stethoscope to serve as a platform for potential computer aided diagnosis applications for the detection of cardiac murmurs. The system uses a custom-built sensor to capture heart sounds at 8 kHz and converts them to electrical signals to be processed by an ATmega644 microcontroller."

Posted July 7, 2014 by Chris

"My first Physical Computing class assignment for this summer was to create a bicycle computer. This is a device that you stick on your bike and it tells you how fast you are going, what your speed is, etc. Following is how I made my own bicycle computer."

Posted June 22, 2014 by Chris

"This is a quick guide with a bit of extra info (pin configurations etc..) that I’ve learnt along the way on how to use the L293D with the Arduino, showing that we can: A) Use a supplemental power source to power the DC motor B) Use the L293D chip to drive the motor C) Use a switch to change the direction of the motor."

Posted June 9, 2014 by Chris

"Today I fabricated the PCB for GNUduino (Arduino made with gEDA). I used screen printing to transfer the PCB layout. Screen printing is another way to transfer the PCB layout to the copper clad instead of the conventional toner transfer method."