Monthly Archives: February 2013

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

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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

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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

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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

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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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Custom slider controls in Scratch

To acquire user input for the Scratch version of Grisbot’s computer interface, I’m using slider controls. In the above example, I’ve made a ‘slider icon’ in the form of a red ‘I.’ Position the mouse over the icon and hold … Continue reading

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