added arduino, modified build

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_Accelerometer/Hello_Accelerometer.ino

@@ -0,0 +1,23 @@
+#include <Adafruit_CircuitPlayground.h>
+
+float X, Y, Z;
+
+void setup() {
+  Serial.begin(9600);
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  X = CircuitPlayground.motionX();
+  Y = CircuitPlayground.motionY();
+  Z = CircuitPlayground.motionZ();
+
+  Serial.print("X: ");
+  Serial.print(X);
+  Serial.print("  Y: ");
+  Serial.print(Y);
+  Serial.print("  Z: ");
+  Serial.println(Z);
+
+  delay(1000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_Blink/Hello_Blink.ino

@@ -0,0 +1,12 @@
+#include <Adafruit_CircuitPlayground.h>
+
+void setup() {
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  CircuitPlayground.redLED(HIGH);
+  delay(500);
+  CircuitPlayground.redLED(LOW);
+  delay(500);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_Buttons/Hello_Buttons.ino

@@ -0,0 +1,30 @@
+#include <Adafruit_CircuitPlayground.h>
+
+bool leftButtonPressed;
+bool rightButtonPressed;
+
+void setup() {
+  Serial.begin(9600);
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  leftButtonPressed = CircuitPlayground.leftButton();
+  rightButtonPressed = CircuitPlayground.rightButton();
+  
+  Serial.print("Left Button: ");
+  if (leftButtonPressed) {
+    Serial.print("DOWN");
+  } else {
+    Serial.print("  UP");
+  }
+  Serial.print("   Right Button: ");
+  if (rightButtonPressed) {
+    Serial.print("DOWN");
+  } else {
+    Serial.print("  UP");    
+  }
+  Serial.println();
+  
+  delay(1000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_LightSensor/Hello_LightSensor.ino

@@ -0,0 +1,17 @@
+#include <Adafruit_CircuitPlayground.h>
+
+int value;
+
+void setup() {
+  Serial.begin(9600);
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  value = CircuitPlayground.lightSensor();
+  
+  Serial.print("Light Sensor: ");
+  Serial.println(value);
+  
+  delay(1000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_NeoPixels/Hello_NeoPixels.ino

@@ -0,0 +1,25 @@
+#include <Adafruit_CircuitPlayground.h>
+
+void setup() {
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  CircuitPlayground.clearPixels();
+
+  delay(500);
+
+  CircuitPlayground.setPixelColor(0, 255,   0,   0);
+  CircuitPlayground.setPixelColor(1, 128, 128,   0);
+  CircuitPlayground.setPixelColor(2,   0, 255,   0);
+  CircuitPlayground.setPixelColor(3,   0, 128, 128);
+  CircuitPlayground.setPixelColor(4,   0,   0, 255);
+  
+  CircuitPlayground.setPixelColor(5, 0xFF0000);
+  CircuitPlayground.setPixelColor(6, 0x808000);
+  CircuitPlayground.setPixelColor(7, 0x00FF00);
+  CircuitPlayground.setPixelColor(8, 0x008080);
+  CircuitPlayground.setPixelColor(9, 0x0000FF);
+ 
+  delay(5000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_SlideSwitch/Hello_SlideSwitch.ino

@@ -0,0 +1,22 @@
+#include <Adafruit_CircuitPlayground.h>
+
+bool slideSwitch;
+
+void setup() {
+  Serial.begin(9600);
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  slideSwitch = CircuitPlayground.slideSwitch();
+  
+  Serial.print("Slide Switch: ");
+  if (slideSwitch) {
+    Serial.print("+");
+  } else {
+    Serial.print("-");
+  }
+  Serial.println();
+  
+  delay(1000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_SoundSensor/Hello_SoundSensor.ino

@@ -0,0 +1,18 @@
+#include <Adafruit_CircuitPlayground.h>
+
+float value;
+
+void setup() {
+  Serial.begin(9600);
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  // Take 10 milliseconds of sound data to calculate
+  value = CircuitPlayground.mic.soundPressureLevel(10);
+  
+  Serial.print("Sound Sensor SPL: ");
+  Serial.println(value);
+
+  delay(90);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_Speaker/Hello_Speaker.ino

@@ -0,0 +1,10 @@
+#include <Adafruit_CircuitPlayground.h>
+
+void setup() {
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  CircuitPlayground.playTone(500, 100);
+  delay(1000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/Hello_Temperature/Hello_Temperature.ino

@@ -0,0 +1,20 @@
+#include <Adafruit_CircuitPlayground.h>
+
+float tempC, tempF;
+
+void setup() {
+  Serial.begin(9600);
+  CircuitPlayground.begin();
+}
+
+void loop() {
+  tempC = CircuitPlayground.temperature();
+  tempF = CircuitPlayground.temperatureF();
+
+  Serial.print("tempC: ");
+  Serial.print(tempC);
+  Serial.print("  tempF: ");
+  Serial.println(tempF);
+
+  delay(1000);
+}

arduino/libraries/Adafruit_Circuit_Playground/examples/Hello_CircuitPlayground/README.md

@@ -0,0 +1,84 @@
+# Hello Circuit Playground
+A set of very basic example sketches to demonstrate the various components
+of the [Circuit Playground](https://www.adafruit.com/products/3000).
+These sketches were tested and verified with:
+* Circuit Playground Developer Edition
+* Ubuntu 16.04 LTS
+* Arduino IDE 1.6.11
+* Adafruit AVR Boards 1.4.9
+* Adafruit Circuit Playground Library 1.6.1
+
+## Hello_Blink
+Blinks the little red LED next to the micro USB connector once per second.
+
+## Hello_SlideSwitch
+The position (+ or -) of the slide switch is sent to the serial monitor once
+per second.
+```
+Slide Switch: -
+Slide Switch: +
+Slide Switch: +
+```
+
+## Hello_Buttons
+The position (UP or DOWN) of the two push buttons are sent to the serial
+monitor once per second.
+```
+Left Button:   UP   Right Button:   UP
+Left Button: DOWN   Right Button:   UP
+Left Button:   UP   Right Button:   UP
+Left Button:   UP   Right Button: DOWN
+```
+
+## Hello_LightSensor
+The reading (0-1023) from the light sensor is sent to the serial monitor once
+per second.
+```
+Light Sensor: 962
+Light Sensor: 954
+Light Sensor: 275
+Light Sensor: 192
+Light Sensor: 688
+```
+
+## Hello_Temperature
+The temperature is sent to the serial monitor once per second.
+```
+tempC: 28.25  tempF: 83.02
+tempC: 29.71  tempF: 85.64
+tempC: 30.72  tempF: 87.30
+tempC: 31.85  tempF: 89.32
+```
+
+## Hello_Accelerometer
+The readings (in m/s<sup>2</sup>) from the 3 axes of the accelerometer are sent
+to the serial monitor once per second. (1G ~= 9.8 m/s<sup>2</sup>)
+```
+X: -0.33  Y: 2.41  Z: 9.40
+X: -1.25  Y: 4.20  Z: 1.86
+X: -7.95  Y: -3.50  Z: -2.47
+X: 0.11  Y: -8.38  Z: 2.25
+X: -2.28  Y: 2.73  Z: 9.10
+```
+
+## Hello_SoundSensor
+The reading (0-1023) from the sound sensor (microphone) is sent to the serial
+monitor once per second.
+```
+Sound Sensor: 339
+Sound Sensor: 339
+Sound Sensor: 1023
+Sound Sensor: 10
+Sound Sensor: 15
+Sound Sensor: 1023
+Sound Sensor: 336
+```
+
+## Hello_Speaker
+Plays a 500Hz tone for 0.1 seconds on the speaker, followed by 1 second of
+silence.
+
+## Hello_NeoPixels
+Clears all pixels for 0.5 seconds then displays colors on the fist 5 pixels
+using individual 8-bit values and the same colors on the next 5 pixels using
+24-bit values. After 5 seconds, this repeats.