STEAMCamp

const int leftButton = 4;    // The CP microcontroller pin for the left button
const int rightButton = 19;  // The CP microcontroller pin for the right button


void setup() {
  // put your setup code here, to run once:
  pinMode(leftButton, INPUT);   // We'll read in from the buttons
  pinMode(rightButton, INPUT);
   Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  
  Serial.print("Left Button: ");
  if (digitalRead(leftButton)) {  // if reading the left button returns true
   Serial.print(" DOWN");
  }else{
  Serial.print(" UP");
  }
 
  Serial.print(" Right Button: ");
 if (digitalRead(rightButton)) { // if reading the right button returns true
   Serial.println(" DOWN");
}else{
Serial.println(" UP");
  }
  delay(1000);
}

#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(" LEFT DOWN");
  } else {
    Serial.print("  UP");
  }
  Serial.print("   Right Button: ");
  if (rightButtonPressed) {
    Serial.print("DOWN");
  } else {
    Serial.print("  UP");    
  }
  Serial.println();
  
  delay(1000);
}

// Adafruit Circuit Playground - Two tone sounds    Support Open Source, buy at Adafruit
//   2016-08-05 Version 1  by Mike Barela for Adafruit Industries
 
const int speaker = 5;       // The CP microcontroller pin for the speaker
const int leftButton = 4;    // The CP microcontroller pin for the left button
const int rightButton = 19;  // The CP microcontroller pin for the right button
 
void setup() {
  pinMode(speaker, OUTPUT);     // We will write out to the speaker
  pinMode(leftButton, INPUT);   // We'll read in from the buttons
  pinMode(rightButton,INPUT);
}
 
void loop() {
  if(digitalRead(leftButton)) {   // if reading the left button returns true
    makeTone(speaker,440,100);    // output a 440 Hz sound for a tenth of a second
  }
  else if(digitalRead(rightButton)) { // if reading the right button returns true
    makeTone(speaker,1760,100);   // output a 1760 Hz sound for a tenth of a second                    
  }
}
 
// the sound producing function (a brute force way to do it)
void makeTone (unsigned char speakerPin, int frequencyInHertz, long timeInMilliseconds) {
  int x;   
  long delayAmount = (long)(1000000/frequencyInHertz);
  long loopTime = (long)((timeInMilliseconds*1000)/(delayAmount*2));
  for (x=0; x<loopTime; x++) {        // the wave will be symetrical (same time high & low)
     digitalWrite(speakerPin,HIGH);   // Set the pin high
     delayMicroseconds(delayAmount);  // and make the tall part of the wave
     digitalWrite(speakerPin,LOW);    // switch the pin back to low
     delayMicroseconds(delayAmount);  // and make the bottom part of the wave
  }  
}

// Adafruit Circuit Playground - Two tone sounds    Support Open Source, buy at Adafruit
//   2016-08-05 Version 1  by Mike Barela for Adafruit Industries
// Uses the CircuitPlayground library to easily use the full functionality of the board
 
#include <Adafruit_CircuitPlayground.h>
 
void setup() {
  CircuitPlayground.begin();
}
 
void loop() {
  if(CircuitPlayground.leftButton()) {   // if reading the left button returns true
    CircuitPlayground.playTone(440,100);    // output a 440 Hz sound for a tenth of a second
  }
  else if(CircuitPlayground.rightButton()) { // if reading the right button returns true
    CircuitPlayground.playTone(1760,100);   // output a 1760 Hz sound for a tenth of a second                    
  }
}

CircuitPlayground.setPixelColor([pixel 0-9], [0-255],   [0-255],   [0-255]);
CircuitPlayground.setPixelColor(pixel 0-9], [0x000000-0xFF0000]);

 CircuitPlayground.clearPixels();

void loop() {
  value = analogRead(10);
  pixels = map(value, 0, 1023, 0, 10);
 
  CircuitPlayground.clearPixels();
  for (int p=0; p<pixels; p++) {
    CircuitPlayground.setPixelColor(p, 0xFF00FF);
  }
  delay(100);
}

#define COLOR  0x31b784

CircuitPlayground.setPixelColor(6, 0x000000);

CircuitPlayground.setBrightness()

// Circuit Playground Bike Light - Spinner
//
// Author: Carter Nelson
// MIT License (https://opensource.org/licenses/MIT)
 
#include <Adafruit_CircuitPlayground.h>
 
#define COLOR         0xFF0000    // change this to your favorite color    
#define SPIN_RATE     100         // lower is faster
 
int pixel1;
int pixel2;
 
///////////////////////////////////////////////////////////////////////////////
void setup() {
  CircuitPlayground.begin();
  
  // Make it bright!
  CircuitPlayground.setBrightness(255);
 
  // Can be any two pixels
  pixel1 = 0;
  pixel2 = 5;
}
 
 
///////////////////////////////////////////////////////////////////////////////
void loop() {
  // Turn off all the NeoPixels
  CircuitPlayground.clearPixels();
 
  // Turn on two pixels to COLOR
  CircuitPlayground.setPixelColor(pixel1, COLOR);
  CircuitPlayground.setPixelColor(pixel2, COLOR);
 
  // Increment pixels to move them around the board
  pixel1 = pixel1 + 1;
  pixel2 = pixel2 + 1;
 
  // Check pixel values
  if (pixel1 > 9) pixel1 = 0;
  if (pixel2 > 9) pixel2 = 0;
 
  // Wait a little bit so we don't spin too fast
  delay(SPIN_RATE);
}

// Circuit Playground Robot - Continuous Servo zero/no movement calibration program
// Mike Barela for Adafruit Industries   September, 2016
 
#include <Adafruit_CircuitPlayground.h>
#include <Servo.h>
 
Servo servoLeft;              // Define left servo
Servo servoRight;             // Define right servo
float speedAngleLeft = 90.0;  // Assume 90 degrees as a start
float speedAngleRight = 90.0;
 
void setup() { 
  servoLeft.attach(12);         // Set left servo to digital pin 12
  servoRight.attach(6);         // Set right servo to digital pin 6
  CircuitPlayground.begin();    // initialize the Circuit Playground library
  Serial.begin(9600);           // to output servo angle values
  Serial.println("Robot Continuous Servo Zero Movement Calibration");
} 
 
void loop() {                     // Loop through motion tests
  Serial.print("Speed Left = ");    Serial.print(speedAngleLeft); 
  Serial.print(", Speed Right = "); Serial.println(speedAngleRight);
  if(CircuitPlayground.slideSwitch()) {  // + = Calibrate Right, - = Calibrate Left
    if( CircuitPlayground.rightButton() ) {
      speedAngleRight += 0.1;
    }
    if( CircuitPlayground.leftButton() ) {
      speedAngleRight -= 0.1;
    }
  }
  else {
    if( CircuitPlayground.rightButton() ) {
      speedAngleLeft += 0.1;
    }
    if( CircuitPlayground.leftButton() ) {
      speedAngleLeft -= 0.1;
    }
  }
  servoLeft.write(speedAngleLeft);
  servoRight.write(speedAngleRight);
  delay(50);
}