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Author Archives: engineerzero
Grisbot Catch and Release
Introducing the new, perhaps improved, L-catcher: Why an L-catcher? Because I think it can be used to not only catch but also release hoops. Here’s an example course for how releasing (aka ‘delivering a hoop’) could work: First we drive … Continue reading
Grisbot Hoop Capture Challenge
Grisbot not only maneuvers, now it can capture and retrieve objects. At any rate, I’m thinking of making a hoop capture challenge. Roughly, the hook device and the capture operation look like this: Because the hook automatically captures the hoop, … Continue reading
Program revision bookmark
The grisbot program written in the Arduino IDE has grown to 20K, or about twenty typewritten pages. It takes many sessions to write the code and then to revise it. When I take a break and come back later, how … Continue reading
Visiting Hax Nuit
One of the virtual worlds at Kitely.
Progress Bug in Scratch
Instead of a conventional status bar to track the progress of the data transmission, I decided it would be more fun to make a ‘progress bug.’ The bug would look like the robot and march across the screen as the … Continue reading
Best Movie (2012): Robot and Frank
My personal award for Best Motion Picture on a Theme of Technological Interest goes to Robot and Frank. Frank is an old guy whose family is finding it increasingly difficult to care for him as he descends into dementia, and … Continue reading
Modifying Scratch Interface
Perhaps I’m trying to fix something that isn’t broke, but I thought I’d try to improve the Grisbot:Scratch interface. Instead of clicking an icon in the corner to go to the specific waypoint data, you now click the waypoint sprite … Continue reading
Grisbot: User Interface in Scratch
This is a brief video demo of the Grisbot user interface in the Scratch programming language. The servo timing scales move according to the ‘glide’ command, and to me at least are reminiscent of the diagnostic readouts in Dr. McCoy’s … Continue reading
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Grisbot Scratch Communications Screen Layout
This communications screen layout is an improvement over the one I used in Processing. The user goes to the comm screen, holds the robot up to the screen and turns it on, and calibrates the high values. Then the user … Continue reading
Broadcasting in Scratch
Suppose you click on one sprite and you want other sprites to move accordingly? I have that problem when I click on the waypoint button and want the turn and move controls for servo timing to show the values selected … Continue reading
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Tagged broadcasting, grisbot, programming, robotics, scratch
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Engineer Zero 