Avoid unnecessary digitalWrites in the distance_sensor example.

debiatan · Dec 18, 2013 · 81b74ac · 81b74ac
1 parent cf07f89
commit 81b74ac
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Showing 2 changed files with 8 additions and 8 deletions.
diff --git a/distance_sensor.py b/distance_sensor.py
@@ -31,11 +31,11 @@
 time.sleep(2) # Device is reset on incoming connection; wait for cyrano to wake
 
 arduino.pinMode(13, OUTPUT)
+arduino.digitalWrite(13, HIGH)
+#arduino.digitalWrite(13, LOW) #to stop reading
 
 while True:
-    arduino.digitalWrite(13, HIGH)
     time.sleep(30/1000000)
-    arduino.digitalWrite(13, LOW)
     readout = arduino.analogRead(0)
     mV = (readout/1024.)*5000
     distance = (mV/9.8)*2.54

diff --git a/pyrano.py b/pyrano.py
@@ -50,27 +50,27 @@ def __write_words(self, values):
             self.__write_word(value)
 
     def pinMode(self, pin, mode):
-        self.__write_words([self.__PIN_MODE,pin,mode])
+        self.__write_words([self.__PIN_MODE, pin, mode])
         return self.__read_word()
 
     def digitalRead(self, pin):
-        self.__write_words([self.__DIGITAL_READ,pin])
+        self.__write_words([self.__DIGITAL_READ, pin])
         return self.__read_word()
 
     def digitalWrite(self, pin, value):
-        self.__write_words([self.__DIGITAL_WRITE,pin,value])
+        self.__write_words([self.__DIGITAL_WRITE, pin, value])
         return self.__read_word()
 
     def analogReference(self, type):
-        self.__write_words([self.__ANALOG_REFERENCE,type])
+        self.__write_words([self.__ANALOG_REFERENCE, type])
         return self.__read_word()
 
     def analogRead(self, pin):
-        self.__write_words([self.__ANALOG_READ,pin])
+        self.__write_words([self.__ANALOG_READ, pin])
         return self.__read_word()
 
     def analogWrite(self, pin, value):
-        self.__write_words([self.__ANALOG_WRITE,pin,value])
+        self.__write_words([self.__ANALOG_WRITE, pin, value])
         return self.__read_word()
 
     def close(self):