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<p>The MG90 is a very low power servo motor and can be driven directly from the Arduino board power supply, without the need for an external supply. If you attempt this with the MG996 servo, you may find that the current draw is too great, and this may cause glitches in the power supply lines that cause the Arduino to "<debughl><ahref="https://www.allaboutcircuits.com/technical-articles/what-is-brown-out-reset-microcontroller-prevent-false-power-down/" title="Link to an article on the All About Circuits website">Brownout reset</a></debughl>”. For the remainder of this exercise, we will use the MG90.</p>
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<divclass="admonition note">
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<pclass="admonition-title">Note on the following Informal Exercise</p>
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<p>The exercise is a legacy exercise from a previous iteration of this course and required an unconnected Arduino and a MG90 servo, i.e. not connected into your robot chassis, as shown in <debughl><ahref="#simpleServo">Fig. 1</a></debughl>.</p>
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<p>The exercise is a legacy exercise from a previous iteration of this course and required an unconnected Arduino and a MG90 servo, i.e. not connected into your robot chassis, as shown in <debughl><ahref="#simpleServo">Fig. 2</a></debughl>.</p>
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<p>This exercise is not manditory, but provides you with a code example for the operation of a standard servo motor, and the code is applicable for both the MG90 and the larger MG996. This example code, provided, can form the basis of the assessed exercise for the servo integrated onto the robot chassis.</p>
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</div>
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<p>During this exercise, we will use the circuit shown in <debughl><ahref="#simpleServo">Fig. 1</a></debughl>, where:</p>
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<p>During this exercise, we will use the circuit shown in <debughl><ahref="#simpleServo">Fig. 2</a></debughl>, where:</p>
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<ul>
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<li>The red wire of the servo is the positive supply, and is connected to the 5V if the Arduino</li>
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<li>The brown wire is the negative supply and should be connected to the ground line.</li>
<li>Connect the circuit shown in <debughl><ahref="#simpleServo">Fig. 1</a></debughl>.</li>
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<li>Connect the circuit shown in <debughl><ahref="#simpleServo">Fig. 2</a></debughl>.</li>
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<li>Download the <debughl><ahref="https://drive.google.com/uc?id=12UGk72jEbWFEJZEG9WvTIxJYWdE80f4-">Standard_Servo_Example.ino</a></debughl> code from the Blackboard folder for this practical. Also included below:</li>
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</ol>
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<p><em>Arduino code for the Standard_Servo_Example.ino Example</em>
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