A gift from littlebits

Just received a starter kit from littlebits. They are sponsoring 'Bay Area Modular Electronics Meetup'.

MSP430 based Heart Rate Monitoring

I was working with Alanson on a heart-rate monitoring project to explore energy harvesting technology. We primarily explored TI MSP430 based systems to come up with the lowest possible power consuming HRM system. Unfortunately, the project died prematurely as I left Portland. Below sample EKG schematic.

Maker Faire Bay Area 2013

Had great fun this week at Make Hardware Innovation Workshop 2013 at the College of San Mateo. An amazing group of energetic people working on different aspects of hardware innovation. Agenda with video link here.

I got to try a Pebble watch!

Later that weekend was Maker Faire Bay Area. A few snap from the greatest show and tell of earth!

TEDxPortland 2013

I attended TEDxPortland 2013 at Portland Art Museum. Kate Bingaman-Burt and Dr. Lauri Marker are AWESOME!

Courtesy: Branden Harvey Photography http://brandenharvey.com/ 

Tracking

Developed an Arduino-based tracking system. Used  MPU-6050 (3-axis accelerometer, 3-axis gyro, temperature), connected it to the I2C bus of the Arduino to read the raw sensor data. The sensor captures the hand motion. These raw data are then processed through DSP filtering algorithm and  graphically drawn in the monitor using Processing APIs. Code is here. 


Tracking from Nahid Alam on Vimeo.

Robot car

I was mentoring high school girls on ChickTech High School STEM workshop this weekend. As a mentor, me and 2 others developed a simple Arduino based robot car. Check out the code and video below!


Robot from Nahid Alam on Vimeo.

Links

Cache
Cache Programming
alexonlinux: aligned vs. unaligned memory-access

General CPU
Homebrew CPU