Changes between Version 3 and Version 4 of ControlSystems/SoftwareTeam/Training/GettingStarted/UltrasonicRangefinder

Timestamp:

Oct 31, 2019, 1:39:35 PM (6 years ago)

Author:

David Albert

Comment:

--

ControlSystems/SoftwareTeam/Training/GettingStarted/UltrasonicRangefinder

@@ -1 +1 @@
 == Ultrasonic Rangefinder
 
-Robots need to sense the environment around them, particularly when driving autonomously.  Ultrasonic sensors are like the sonar used by bats.  [[Image(UltrasonicSensor.jpg,right,250px,margin=10)]] They emit a chirp of sound and measure the time it takes to hear an echo of that chirp.  The longer the time, the further the sound traveled.  Since sound travels at a particular speed through air, we can use the echo delay to calculate how far away the object was that reflected the sound.  You can read more about ultrasonic sensors [https://wpilib.screenstepslive.com/s/currentCS/m/java/l/599715-ultrasonic-sensors-measuring-robot-distance-to-a-surface here]
+Robots need to sense the environment around them, particularly when driving autonomously.  Ultrasonic sensors are like the sonar used by bats.  [[Image(UltrasonicSensor.jpg,right,250px,margin=10)]] They emit a chirp of sound and measure the time it takes to hear an echo of that chirp.  The longer the time, the further the sound traveled.  Since sound travels at a particular speed (about 1125 ft/s) through air, we can use the echo delay to calculate distance to the object was that reflected the sound.  You can read more about ultrasonic sensors on [https://wpilib.screenstepslive.com/s/currentCS/m/java/l/599715-ultrasonic-sensors-measuring-robot-distance-to-a-surface ScreenStepsLive]
 
-Create another program using the !TimedRobot java template and name it !UltrasonicTest. Modify the generated code as follows:
-* import the Ultrasonic class {{{ import edu.wpi.first.wpilibj.Ultrasonic; }}}
-* declare a ultrasonic variable in the Robot class {{{ private Ultrasonic f_ultrasonic; }}}
+Create another program using the !TimedRobot java template and name it !UltrasonicTest. Modify the auto-generated template code as follows:
+* import the Ultrasonic class 
+{{{ 
+   import edu.wpi.first.wpilibj.Ultrasonic; 
+}}}
+* declare a ultrasonic variable in the Robot class 
+{{{ 
+   private Ultrasonic f_ultrasonic;
+}}}
 * in robotInit() instantiate an ultrasonic object and set it to start automatically ranging 
   {{{