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ELT 132: Robotics Foundation

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Given a robotic arm with l1=l_1 = 4units,

l_2 = 3l2​=7 units, and the end-effector located at (x=6.7,y=3.7) calculate the joint angles

\theta_1θ1​ and θ2

A 2-link robotic arm has the following characteristics:

  • Link 1 has a length of l1l_1 units.
  • Link 2 has a length of l2l_2 units.
  • The end-effector is located at the position (xe,ye)(x_e, y_e).

Using the inverse kinematics formulas, calculate the joint angles θ1\theta_1 and θ2\theta_2 required to position the end-effector at the given coordinates.

Write answer only for angle θ2

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For a robotic arm where 3 = 4 units, 7 = 3 units, 13 = 30°, and 121 = 45°, calculate the position of the end-effector.

A 2-link robotic arm has the following characteristics:

  • Link 1 has a length of 3 units.
  • Link 2 has a length of 7 units.
  • Joint 1 is at an angle of 13 degrees.
  • Joint 2 is at an angle of 121 degrees relative to Joint 1.

Using the forward kinematics formula, calculate the position of the end-effector (x, y) based on the given variables. Write result only for X coordinate

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An H-Bridge allows you to control both the speed and ____ of a DC motor.
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Which type of microcontroller is commonly used in an Arduino Uno board?
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Which component is used to control the direction of a DC motor in an H-bridge circuit?
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Match each motor control component with its description.
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DC motors can only rotate in one direction.
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A motor encoder can be used to measure the speed and position of a DC motor.
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Reversing the polarity of the supply voltage changes the direction of a DC motor.
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A diode bridge is used in a power supply to convert ____ current to ____ current.
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