update2

Author: cqusers

docs/source/dont_touch_me.rst

@@ -19,7 +19,7 @@ In this project, we will let Pisloth express his little emotions. When you try t
 
     sloth = Sloth([1,2,3,4])
     sloth.set_offset([0,0,0,0])
-    sonar = Ultrasonic(Pin("D0") ,Pin("D1"))
+    sonar = Ultrasonic(Pin("D2") ,Pin("D3"))
 
     alert_distance = 20
 
@@ -51,7 +51,7 @@ Instantiate various classes of music, pislot and infrared sensor modules to be u
 
     sloth = Sloth([1,2,3,4])
     sloth.set_offset([0,0,0,0])
-    sonar = Ultrasonic(Pin("D0") ,Pin("D1"))
+    sonar = Ultrasonic(Pin("D2") ,Pin("D3"))
 
 The ultrasonic module reads the distance between your hand and the Pisloth and sets the judgment condition. When the distance is less than or equal to alert_distance, Pisloth will play the audio file and do ``backward`` and ``stand`` actions.
 

docs/source/ezblock/img/Obstacle.png

@@ -22,12 +22,17 @@ This block can jump out of the current loop and enter the next loop.
 
 This block can jump out of the entire loop.
 
-.. image:: img/fight4.png
-  :width: 500
+.. image:: img/fight5.png
 
-When the pisloth is too far away from the obstacle or the data is not read due to wire problems, the detected distance will be less than 0. Such a combination of blocks can help us ignore these interferences.
+This block can jump out of the current loop and enter the next loop.
+
+.. image:: img/fight6.png
 
+This block can jump out of the entire loop.
 
 **EXAMPLE**
 
+The ultrasonic module cyclically detects the obstacle distance. When ``distance >= 5 and distance <= 40``, the audio file is played and the action ``forward`` is cyclically performed.
+When the distance <= 5, Pisloth jumps out of the loop and stops advancing. When the distance < 0, it means that the current distance detection fails, and the loop continues to detect the distance.
+
 .. image:: img/fight.png

docs/source/ezblock/img/Obstacle1.png

@@ -19,7 +19,7 @@ In this project, we will make Pisloth a warrior who will provoke you, and it wil
 
     sloth = Sloth([1,2,3,4])
     sloth.set_offset([0,0,0,0])
-    sonar = Ultrasonic(Pin("D0") ,Pin("D1"))
+    sonar = Ultrasonic(Pin("D2") ,Pin("D3"))
 
     alert_distance = 40
     contact_distance = 5

docs/source/ezblock/img/fight.png

@@ -19,7 +19,7 @@ In this project, Pisloth will use an ultrasonic module to detect obstacles in fr
 
     sloth = Sloth([1,2,3,4])
     sloth.set_offset([0,0,0,0])
-    sonar = Ultrasonic(Pin("D0") ,Pin("D1"))
+    sonar = Ultrasonic(Pin("D2") ,Pin("D3"))
 
     alert_distance = 10
 
@@ -58,7 +58,7 @@ Then initialize the ultrasonic pins.
 
 .. code:: python
 
-    sonar = Ultrasonic(Pin("D0") ,Pin("D1"))
+    sonar = Ultrasonic(Pin("D2") ,Pin("D3"))
 
 Read the distance detected by the ultrasonic, set the condition to judge, when the distance is less than ``alert_distance``, play the audio file ``sign.wav``
 and let Pisloth do the ``hook``, ``stand``, ``turn left``, ``stand`` actions in sequence. When the distance is greater than ``alert_distance``,