Monthly Archives: May 2013

Grisbot Light Above Two Demo

Here is a demo video of grisbot performing in ‘Light Above Two’ Mode. This could be the basis of a game, in which the object is to steer the robot as close to a marker as possible within a limited … Continue reading

Posted in Uncategorized | Tagged , , | Leave a comment

Light Above 2 User Interface

This is the Scratch-programmed user interface for the second mode for grisbot to obey commands from a flashlight shined from above. When a flashlight is shined on the robot with an intensity greater than user-selected value (a), the robot turns: … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Grisbug circuit test

Grisbug is like a hexbug, only with programmed features. It is programmed to blink its eyes when a flashlight shines on it. When the flashlight comes closer, grisbug ‘wakes up’ and the eyes glow continuously and the motor runs. When … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

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.

Posted in Uncategorized | Tagged , , | Leave a comment

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

Posted in Uncategorized | Tagged , , | Leave a comment

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

Posted in Uncategorized | Tagged , | Leave a comment

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

Posted in Uncategorized | Tagged , , , , | Leave a comment

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 , , , , | 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

Posted in Uncategorized | Tagged , , | Leave a comment

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

Posted in Uncategorized | Tagged , , | Leave a comment