Updated the component libraries.

LSM303.h

@@ -243,7 +243,7 @@ template <typename T> float LSM303::heading(vector<T> from)
     vector_normalize(&N);
 
     // compute heading
-    float heading = atan2(vector_dot(&E, &from), vector_dot(&N, &from)) * 180 / M_PI;
+    float heading = atan2(vector_dot(&E, &from), vector_dot(&N, &from)) * 180 / PI;
     if (heading < 0) heading += 360;
     return heading;
 }
@@ -261,6 +261,3 @@ template <typename Ta, typename Tb> float LSM303::vector_dot(const vector<Ta> *a
 }
 
 #endif
-
-
-

PololuBuzzer.cpp

@@ -31,32 +31,31 @@ static const unsigned int cs2_divider[] = {0, 1, 8, 32, 64, 128, 256, 1024};
 
 unsigned char buzzerInitialized = 0;
 volatile unsigned char buzzerFinished = 1;  // flag: 0 while playing
-const char *buzzerSequence = 0;
+const char * volatile buzzerSequence = 0;
 
 // declaring these globals as static means they won't conflict
 // with globals in other .cpp files that share the same name
 static volatile unsigned int buzzerTimeout = 0;    // tracks buzzer time limit
-static char play_mode_setting = PLAY_AUTOMATIC;
+static volatile char play_mode_setting = PLAY_AUTOMATIC;
 
 extern volatile unsigned char buzzerFinished;  // flag: 0 while playing
-extern const char *buzzerSequence;
+extern const char * volatile buzzerSequence;
 
 
-static unsigned char use_program_space; // boolean: true if we should
+static volatile unsigned char use_program_space; // boolean: true if we should
                     // use program space
 
 // music settings and defaults
-static unsigned char octave = 4;        // the current octave
-static unsigned int whole_note_duration = 2000;  // the duration of a whole note
-static unsigned int note_type = 4;              // 4 for quarter, etc
-static unsigned int duration = 500;        // the duration of a note in ms
-static unsigned int volume = 15;        // the note volume
-static unsigned char staccato = 0;       // true if playing staccato
+static volatile unsigned char octave = 4;                 // the current octave
+static volatile unsigned int whole_note_duration = 2000;  // the duration of a whole note
+static volatile unsigned int note_type = 4;               // 4 for quarter, etc
+static volatile unsigned int duration = 500;              // the duration of a note in ms
+static volatile unsigned int volume = 15;                 // the note volume
+static volatile unsigned char staccato = 0;               // true if playing staccato
 
 // staccato handling
-static unsigned char staccato_rest_duration;  // duration of a staccato
-                        //  rest, or zero if it is time
-                        //  to play a note
+static volatile unsigned char staccato_rest_duration;  // duration of a staccato rest,
+                                              // or zero if it is time to play a note
 
 static void nextNote();
 
@@ -615,8 +614,7 @@ static void nextNote()
     goto parse_character;
   case 'o':
     // set the octave permanently
-    octave = getNumber();
-    tmp_octave = octave;
+    octave = tmp_octave = getNumber();
     goto parse_character;
   case 'r':
     // Rest - the note value doesn't matter.

QTRSensors.cpp

@@ -46,6 +46,8 @@ void QTRSensors::init(unsigned char *pins, unsigned char numSensors,
     calibratedMinimumOff=0;
     calibratedMaximumOff=0;
 
+    _lastValue=0; // assume initially that the line is left.
+
     if (numSensors > QTR_MAX_SENSORS)
         _numSensors = QTR_MAX_SENSORS;
     else
@@ -317,7 +319,6 @@ int QTRSensors::readLine(unsigned int *sensor_values,
     unsigned long avg; // this is for the weighted total, which is long
                        // before division
     unsigned int sum; // this is for the denominator which is <= 64000
-    static int last_value=0; // assume initially that the line is left.
 
     readCalibrated(sensor_values, readMode);
 
@@ -344,7 +345,7 @@ int QTRSensors::readLine(unsigned int *sensor_values,
     if(!on_line)
     {
         // If it last read to the left of center, return 0.
-        if(last_value < (_numSensors-1)*1000/2)
+        if(_lastValue < (_numSensors-1)*1000/2)
             return 0;
 
         // If it last read to the right of center, return the max.
@@ -353,9 +354,9 @@ int QTRSensors::readLine(unsigned int *sensor_values,
 
     }
 
-    last_value = avg/sum;
+    _lastValue = avg/sum;
 
-    return last_value;
+    return _lastValue;
 }
 
 

QTRSensors.h

@@ -141,6 +141,7 @@ class QTRSensors
     unsigned char _numSensors;
     unsigned char _emitterPin;
     unsigned int _maxValue; // the maximum value returned by this function
+    int _lastValue;
 
   private:
 

USBPause.h

@@ -1,4 +1,4 @@
-// Copyright Pololu Corporation.  For more information, see http://www.pololu.com/
+// Copyright Pololu Corporation.  For more information, see https://www.pololu.com/
 
 /*! \file USBPause.h
  *

components.txt

@@ -1,9 +1,9 @@
 
-https://github.com/pololu/fastgpio-arduino 1.0.2-1-ga80ffb9
-https://github.com/pololu/usb-pause-arduino 1.0.0-1-gdc0010e
-https://github.com/pololu/pushbutton-arduino 1.1.1
-https://github.com/pololu/pololu-buzzer-arduino 1.0.0
-https://github.com/pololu/pololu-hd44780-arduino 1.0.0-1-g0edb20e
-https://github.com/pololu/lsm303-arduino 2.1.0-1-g0139b82
-https://github.com/pololu/l3g-arduino 2.0.0-1-g71cd3d6
-https://github.com/pololu/qtr-sensors-arduino 2.1.1
+https://github.com/pololu/fastgpio-arduino 2.0.0
+https://github.com/pololu/usb-pause-arduino 2.0.0
+https://github.com/pololu/pushbutton-arduino 2.0.0
+https://github.com/pololu/pololu-buzzer-arduino 1.0.1
+https://github.com/pololu/pololu-hd44780-arduino 2.0.0-1-gc2ceb6f
+https://github.com/pololu/lsm303-arduino 3.0.1
+https://github.com/pololu/l3g-arduino 3.0.0
+https://github.com/pololu/qtr-sensors-arduino 3.0.0

update_components.sh

@@ -42,14 +42,14 @@ copylib()
 }
 
 library .
-copylib https://github.com/pololu/fastgpio-arduino ../fastgpio-arduino/FastGPIO FastGPIO.h
-copylib https://github.com/pololu/usb-pause-arduino ../usb-pause-arduino/USBPause USBPause.h
-copylib https://github.com/pololu/pushbutton-arduino ../pushbutton-arduino/Pushbutton Pushbutton{.cpp,.h}
+copylib https://github.com/pololu/fastgpio-arduino ../fastgpio-arduino FastGPIO.h
+copylib https://github.com/pololu/usb-pause-arduino ../usb-pause-arduino USBPause.h
+copylib https://github.com/pololu/pushbutton-arduino ../pushbutton-arduino Pushbutton{.cpp,.h}
 copylib https://github.com/pololu/pololu-buzzer-arduino ../pololu-buzzer-arduino/PololuBuzzer PololuBuzzer{.cpp,.h}
-copylib https://github.com/pololu/pololu-hd44780-arduino ../pololu-hd44780-arduino/PololuHD44780 PololuHD44780{.cpp,.h}
-copylib https://github.com/pololu/lsm303-arduino ../lsm303-arduino/LSM303 LSM303{.cpp,.h}
-copylib https://github.com/pololu/l3g-arduino ../l3g-arduino/L3G L3G{.cpp,.h}
-copylib https://github.com/pololu/qtr-sensors-arduino ../qtr-sensors-arduino/QTRSensors QTRSensors{.cpp,.h}
+copylib https://github.com/pololu/pololu-hd44780-arduino ../pololu-hd44780-arduino PololuHD44780{.cpp,.h}
+copylib https://github.com/pololu/lsm303-arduino ../lsm303-arduino LSM303{.cpp,.h}
+copylib https://github.com/pololu/l3g-arduino ../l3g-arduino L3G{.cpp,.h}
+copylib https://github.com/pololu/qtr-sensors-arduino ../qtr-sensors-arduino QTRSensors{.cpp,.h}
 
 # The Zumo32U4 library has some files that are reused between examples, and we
 # would like those to stay synchronized.