Building PlotClock
I found a YouTube video of a clock that can draw the time with an erasable pen, then wipe it away before restarting the cycle: There is something very human and endearing about …
Category: Arduino
MPU-6050 Redux: DMP Data Fusion vs. Complementary Filter
I’ve been using the GY-521 IMU breakout board containing Invensense’s MPU-6050 IMU to compute orientation in my self-balancing scooter (the “Halfway”). I’d like to improve the scooter’s performance on hills and …
Angular Momentum / Arduino / Gyroscopes / Segway / WiiChuck
The “Halfway” – A Self-Balancing Scooter
This latest project is the longest and most complicated so far. Over the last several months I’ve been working to put together a Segway-like self-balancing scooter, aka the “Halfway”. Many …
Pi-Bot, an Affordable Arduino Robot
I was recently forwarded a link to the soon-to-be released Pi-Bot robot kit. The Pi-Bot’s Kickstarter campaign is fully funded and is estimated to ship this June. This robot kit …
Arduino / e-Textiles / Kid-Friendly / Lilypad
A Soft-Circuit Potentiometer Makes Music
I recently received some e-textile components in the mail from an Italian company called Plug and Wear (www.plugandwear.com). In the interest of full disclosure, I should state that the company …
MPU-6050: DMP Data from i2cdevlib
In March, I posted on experimenting with the MPU-6050 IMU chip (mounted in a GY-521 breakout board). It seems that many people are using the MPU-6050, and I wanted to …
Arduino Without Computers (in 45 minutes or less!)
This Saturday I’ll be running an Arduino workshop for teenagers and young adults at the Young Adult Innovate Conference put on by Advance LA. The conference organizers were looking for …
Wii-Nunchuck Controlled Servo Motors
My previous project explored the accelerometer and gyroscope sensors in an MPU-6050 IMU chip, and showed how the data from both sensors could be combined for greater overall accuracy. …
Gyroscopes and Accelerometers on a Chip
My last two blog entries discussed demonstrations of gyroscopes and angular momentum conservation at our school’s science fair. One of the demonstrations I put together takes a look at how …
Arduino / e-Textiles / Lilypad
LED Matrix Shirt
After completing the Programmable LED Sweatshirt project with the Arduino LilyPad. I was intrigued by the idea of a soft-circuit LED array that could be used as a scrolling message …