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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
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
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
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
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Tagged arduino ide, attiny45, attiny85, pin conventions, programming
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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
