P ART 3: D ETECT THE S MALLEST WIDTH O BJECT For this part, the test field should have 2 or more tall objects that are a) spaced apart (so that the CyBot PING sensor "sees" them as different objects) and b) positioned about the same distance from the CyBot. One object should have a smaller width than the others. Additionally, some of the tall objects could be grouped together to create a wider object, as shown in Figure 1 (i.e., composite object). All objects should be located in front of the CyBot so that a 180-degree scan sees all objects. 1. Based on a completed scan, determine the following for each objected detected and display to PuTTY: a. Object number b. Angle at which an object is detected (e.g., position of the middle of an object in degrees) c. Distance to an object in cm d. Radial (or angular) width of an object in degrees (i.e., the number of degrees within the scan in which the object appears; e.g., if the scan starts seeing an object at angle 30 degrees and stops seeing it at 35 degrees, its radial width is 5 degrees) 2. Confirm that the data collected and displayed matches the state of the test field. 3. Position the CyBot sensor to point in the direction of the object with the smallest radial width. Note that radial width is different than actual linear width. Geometry or trigonometry can be used to calculate or estimate the linear width (e.g., see arc length of a circle). It's okay to use radial width in this lab. In the project, you will need to use linear width, because objects will be at varying distances from the CyBot in the test field. As noted earlier, keep in mind that the PING sensor emits a sound wave, which is shaped like a cone, and thus PING sensor data make an object appear wider than it actually is. Nonetheless, PING data may be sufficient to determine whether one object's width is smaller or larger than another