Posted January 22, 2013 by Chris

“Felix is one of the first robots I created using the kinect sensor. Felix uses NPC Robotics 24V Electric Gear Motor Set – R81, R82. they are basically wheelchair motors. With 10? solid wheels and custom aluminum hubs. For the Robot Stroller kit I use 2 of the Jazzy Select Elite, Coupled with 2 of the 12 inch tires.”

Posted January 7, 2013 by Chris

“Digital timer switches are used to control the operation of electrical devices based on a programmed schedule. This project describes a programmable digital timer based on a PIC16F628A microcontroller that can be programmed to schedule the on and off operation of an electrical appliance. The appliance is controlled through a relay switch.”

Posted January 5, 2013 by Chris

“The E-bike computer. It gives me different information about the bicycle like: battery voltage, external temperature, temperature of the battery, speed and distance traveled. There is also a throttle and state of charge indicator. This is how I accelerate the bicycle giving the input to the motor to move forward.”

Posted January 4, 2013 by Chris

“The purpose of this project was to create a simple, portable device that would periodically read sensors and then store the sensor data so it could be retrieved later.The result is the HexiLogger, ‘hexi’ because it can support up to six different sensor inputs and ‘logger’ because it will store the input data on a removable SD memory card.”

Posted December 24, 2012 by Chris

“I wanted to test out a Simple CPLD test board so I decided to try the simplest thing possible – a binary counter. I attached a 10xLED bar to a PCB and mounted it to a pin socket to use it as a display.”

Posted December 19, 2012 by Chris

“The FFT operations are done in 16-bit fixed-point. These 128 point FFT processes, applying window, butterfly operations and scalar output, could be executed in real-time (within 7.3 msec). This is pretty fast considering it is processed with only a cheap microcontroller. The spectrum bars are displayed in order of fundamental frequency x 0 (DC component), fundamental frequency x 1, x2, x3, … from left to right.”

Posted December 16, 2012 by Chris

“The system uses accelerometers to detect the user’s head tilt in order to direct mouse movement on the monitor. The clicking of the mouse is activated by the user’s eye blinking through a reflective sensor. The keyboard function is implemented by allowing the user to scroll through letters with head tilt and with eye blinking as the selection mechanism.”

Posted November 27, 2012 by Chris

“For the past two days I have literally lost my patience with Qik 2s9v1 dual serial motor controller. I have referred so many website and I could not make this controller work. After hours of searching I found this library which was compatible with Arduino 1.0…..Once that got the issue resolved I jumped into controlling the motor using a Proximity Sensor.”

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 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 ….”