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You're reading from  Learning Lego Mindstorms EV3

Product typeBook
Published inJan 2015
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ISBN-139781783985029
Edition1st Edition
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Author (1)
Gary Garber
Gary Garber
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Gary Garber

Gary Garber teaches physics, math, and engineering at Boston University Academy. Gary is the president of the New England Section of the American Association of Physics Teachers and has led dozens of professional development workshops in education at both the local and national levels. Gary runs the Boston University FIRST Robotics program. He has run and hosted numerous robotics workshops in VEX, Tetrix, and LEGO platforms. He has run dozens of LEGO robotics tournaments and spoken on robotics education at both local and national conferences. His robotics team has worked with Engineers Without Borders, NASA, and the National Science Teachers Association on a variety of engineering and education projects. He is currently an educational consultant, working to develop new software tools for the classroom, at the Tufts Center for Engineering Education and Outreach, which is a pioneer in LEGO Robotics Education. He is the author of Instant LEGO MINDSTORMS EV3, Packt Publishing. He currently resides in Massachusetts, US. When he is not playing with LEGO, robots, or toy trains, he enjoys spending time with his wife, Catalina, and their two children, Alejandro and Leonardo.
Read more about Gary Garber

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The GT My Block


The GT My Block uses a Timer block to measure the duration of a single loop iteration. The timer value is used to determine the value of the tInt variable block, which is the average period of time of one iteration of the balance loop, over which the Gyro rates are integrated to determine the Gyro position. tInt is also used to calculate the derivative of the motor position to determine the motor rate. Because the rate at which the program executes may vary, the integration time will vary. Thus, the GT My Block allows us to compensate for any affect on calculations in other parts of our program.

The variable block cLo is a loop counter variable. Whenever the main programming loop runs, the loop counter will be set to zero in the RST My Block. Thus, the compare block and the logic switch block will set the tInt variable block value to 0.014 seconds and reset timer 1 with the reset timer block. After the switch block, the index of the loop counter cLo will be increased by...

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Learning Lego Mindstorms EV3
Published in: Jan 2015Publisher: ISBN-13: 9781783985029

Author (1)

author image
Gary Garber

Gary Garber teaches physics, math, and engineering at Boston University Academy. Gary is the president of the New England Section of the American Association of Physics Teachers and has led dozens of professional development workshops in education at both the local and national levels. Gary runs the Boston University FIRST Robotics program. He has run and hosted numerous robotics workshops in VEX, Tetrix, and LEGO platforms. He has run dozens of LEGO robotics tournaments and spoken on robotics education at both local and national conferences. His robotics team has worked with Engineers Without Borders, NASA, and the National Science Teachers Association on a variety of engineering and education projects. He is currently an educational consultant, working to develop new software tools for the classroom, at the Tufts Center for Engineering Education and Outreach, which is a pioneer in LEGO Robotics Education. He is the author of Instant LEGO MINDSTORMS EV3, Packt Publishing. He currently resides in Massachusetts, US. When he is not playing with LEGO, robots, or toy trains, he enjoys spending time with his wife, Catalina, and their two children, Alejandro and Leonardo.
Read more about Gary Garber