Blogroll
-
Recent Posts
Archives
- July 2025
- March 2025
- February 2025
- January 2025
- December 2024
- July 2023
- March 2023
- February 2023
- November 2022
- September 2022
- August 2022
- April 2021
- July 2018
- June 2018
- May 2018
- December 2017
- September 2017
- August 2017
- February 2017
- June 2016
- May 2015
- April 2015
- March 2015
- December 2014
- October 2014
- September 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
Meta
Category Archives: Uncategorized
Mice Eating Watermelon!
Sammy and Sam Sam eating watermelon. Engineer bloggers are allowed to be off topic if it’s Sunday and if it’s cute.
grisbug instamorph
On Friday morning the bathroom sink plugged up and while looking in the cabinet underneath for the snake, I spied a siphon clip that I had made with instamorph. How fortuitous! I had completely forgotten — Instamorph, of course! Just … Continue reading
Grisbug: first concept
I’m sure everyone is familiar with hexbugs, which are selling for about $6. Well, I’m working on a design for a ‘grisbug’ which will aim for roughly the same price point but have expanded capabilities. I priced the ATTiny at … Continue reading
ATTiny Photocell/PWM demo
I wrote a little program and made a circuit for the ATTiny which enables a photocell to control an LED and a motor with pulse width modulation. Here’s the video: – And here’s the circuit diagram: And here’s the code … Continue reading
ATTiny 45/85 Pin Conventions for Arduino IDE Sketches
The main source for information on how to program the ATTiny using the Arduino IDE is found at the MIT High-Low Tech site. But I found the information on the pinouts rather opaque for the newbie (= me), so as … Continue reading
Posted in Uncategorized
Tagged arduino ide, attiny45, attiny85, pin conventions, programming
4 Comments
Thirty Year Old Predictions
From the cover: “Robotics. Today, they build Fords and Toyotas; tomorrow they’ll vacuum your floors.” “Cable TV. Soon your set will bring hundreds of channels into your home. And you’ll talk back!” “Computers. Football or horse racing, politics or Wall … Continue reading
Palpatine Pez Project (Incomplete)
This was an idea I had for Adafruit’s Six Second Video Challenge. I wanted to ‘upgrade’ a Pez dispenser to flash eyes and play music. Given how creepy red glowing eyes are, what better choice than an Emperor Palpatine Pez … Continue reading
Grisbot Design Studies
Would grisbot look nicer if the battery was enclosed? I was hoping that I could cut down on the acrylic, but it doesn’t look that way.
Grisbot ‘light above’ demo
In the ‘light above’ mode, when a flashlight is brought close enough to exceed user-specified light intensity (a), the robot will turn in place. When the flashlight is brought close enough to exceed user-specified light intensity (b), the robot will … Continue reading
Book Review: Camelot 30K
Camelot 30K, by Robert L. Forward. Camelot 30K is a fascinating novel about a truly alien society of shrimp-like intelligent beings who live on an ice world far beyond the orbit of Pluto. If you like hard science fiction, you’ll … Continue reading
Engineer Zero 