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Presentation transcript:

Greg’s Tips Logic wires = Green Numeric wires = Yellow Text wires = Orange Use lots of comments in program Name loops for a cleaner program Motors default to B & C Use.2 sec. “waits” when program changes

Tips Cont. Motors feedback in Degrees ONLY Reset motors before using rotation sensor Speed vs Accuracy Use program HELP! mresources mresources Create a program sequencer. Debugging

Gyro Sensor Calibration

RAW Sensor

Common Issues Wrong Port Not using sensors with WAIT or LOOP block

FORMULAS Calculate Distance D = Diameter of Tire (2.2”) C = D * Pi (3.14) C = Circumference of Tire = (6.90”) Motor Rotations to move 12” 12” / C = 12 / 6.90 = 1.73 Rotations

FORMULAS CONT. D = Diameter of turn B = Distance between drive wheels (center) VR = Right wheel power VL = Left wheel power D = B * (VR+VL) / (VR-VL) If D = negative number, robot will turn right

FORMULAS CONT. Using Standard 43.2 x 22 tires. Motor Rotations Divide by 27 for CM (wheel) Motor Rotations Divide by 36 for CM (tracks) 360 degrees / 27 = 13.3 CM 13.3 CM / 2.54 = 5.23”

CONTACT GREG GREER