Build Instructions

Collapse

• 1

  Step 1

  Cannon code-

  
  #include "Servo.h" // include the servo library
  
  Servo armServo; // servo to raise the arm
  Servo cannonServo; // servo to recoil cannon
  
  // these constants won't change:
  
  const int triggerSensor = 1; // the sensor is connected to analog pin 1
  const int threshold = 36; // threshold value to decide when the sensor input triggers
  const int servoPin1 = 9; // control pin for arm servo
  const int servoPin2 = 6; // control pin for cannon servo
  const int lasersightPin = 11; // control pin for laser sight
  const int ledPin = 3; // control pin for cannon power up/down LED
  const int ledPin1 = 12; // control pin for cannon firing LED
  const int soundPin = 10; // control pin for sound board
  const int powerPin = 2;
  
  // these variables will change:
  int sensorReading = 0; // variable to store the value read from the sensor pin
  int ledState = LOW; // variable used to store the last LED status, to toggle the light
  
  void setup() {
  Serial.begin(9600); // use the serial port
  armServo.attach(servoPin1); // attaches the servo on pin 9 to the servo object
  cannonServo.attach(servoPin2); // attaches the servo on pin 6 to the servo object
  pinMode(lasersightPin, OUTPUT); // sets the laser sight pin as an output
  digitalWrite(lasersightPin, LOW); // turns off the laser sight pin
  pinMode(soundPin, OUTPUT); // sets the sound pin as output
  digitalWrite(soundPin, LOW); // turns off sound pin
  digitalWrite(ledPin1, OUTPUT); // sets cannon firing LED pin as output
  digitalWrite(ledPin1, LOW); // turns off the firing LED
  digitalWrite(powerPin, OUTPUT); // sets the servo power pin as output
  digitalWrite(powerPin, LOW); // turns off the servo power pin
  }
  
  void loop() {
  digitalWrite(powerPin, HIGH);
  armServo.write(100);
  cannonServo.write(63);
  
  // read the sensor and store it in the variable sensorReading:
  sensorReading = analogRead(triggerSensor);
  
  // if the sensor reading is less than the threshold:
  if (sensorReading <= threshold) {
  
  digitalWrite(soundPin, HIGH); // turn the sound on
  delay(10); // wait ten milliseconds
  digitalWrite(soundPin, LOW); // turn the sound off
  
  // fade in from min to max in increments of 1 point:
  for(int fadeValue = 0 ; fadeValue <= 255; fadeValue +=3) {
  // sets the value (range from 0 to 255):
  analogWrite(ledPin, fadeValue);
  // wait for 30 milliseconds to see the dimming effect
  delay(30);
  }
  delay(3000);
  digitalWrite(lasersightPin, HIGH); // turn on the laser sight
  armServo.write(50); // raise cannon arm
  cannonServo.write(125); // slide barrel forward
  delay(3000);
  digitalWrite(ledPin1, HIGH);
  cannonServo.write(63);
  delay(100);
  digitalWrite(ledPin1, LOW);
  delay(700);
  cannonServo.write(125);
  delay(3000);
  digitalWrite(ledPin1, HIGH);
  cannonServo.write(63);
  delay(100);
  digitalWrite(ledPin1, LOW);
  delay(700);
  cannonServo.write(125);
  delay(3000);
  digitalWrite(ledPin1, HIGH);
  cannonServo.write(63);
  delay(100);
  digitalWrite(ledPin1, LOW);
  delay(700);
  cannonServo.write(125);
  delay(3000);
  digitalWrite(lasersightPin, LOW);
  cannonServo.write(63);
  armServo.write(100);
  delay(3000);
  
  // fade out from max to min in increments of 1 point:
  for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=3) {
  // sets the value (range from 0 to 255):
  analogWrite(ledPin, fadeValue);
  // wait for 30 milliseconds to see the dimming effect
  delay(30);
  }
  digitalWrite(powerPin, LOW);
  }
  }
  
  

  WaveShield code (courtesy of Adafruit)-

  #include <FatReader.h>
  #include <SdReader.h>
  #include <avr/pgmspace.h>
  #include "WaveUtil.h"
  #include "WaveHC.h"
  
  
  SdReader card; // This object holds the information for the card
  FatVolume vol; // This holds the information for the partition on the card
  FatReader root; // This holds the information for the filesystem on the card
  FatReader f; // This holds the information for the file we're play
  
  WaveHC wave; // This is the only wave (audio) object, since we will only play one at a time
  
  #define DEBOUNCE 100 // button debouncer
  
  // this handy function will return the number of bytes currently free in RAM, great for debugging!
  int freeRam(void)
  {
  extern int __bss_end;
  extern int *__brkval;
  int free_memory;
  if((int)__brkval == 0) {
  free_memory = ((int)&free_memory) - ((int)&__bss_end);
  }
  else {
  free_memory = ((int)&free_memory) - ((int)__brkval);
  }
  return free_memory;
  }
  
  void sdErrorCheck(void)
  {
  if (!card.errorCode()) return;
  putstring("\n\rSD I/O error: ");
  Serial.print(card.errorCode(), HEX);
  putstring(", ");
  Serial.println(card.errorData(), HEX);
  while(1);
  }
  
  void setup() {
  // set up serial port
  Serial.begin(9600);
  putstring_nl("WaveHC with 6 buttons");
  
  putstring("Free RAM: "); // This can help with debugging, running out of RAM is bad
  Serial.println(freeRam()); // if this is under 150 bytes it may spell trouble!
  
  // Set the output pins for the DAC control. This pins are defined in the library
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  
  // pin13 LED
  pinMode(13, OUTPUT);
  
  // enable pull-up resistors on switch pins (analog inputs)
  digitalWrite(14, HIGH);
  digitalWrite(15, HIGH);
  digitalWrite(16, HIGH);
  digitalWrite(17, HIGH);
  digitalWrite(18, HIGH);
  digitalWrite(19, HIGH);
  
  // if (!card.init(true)) { //play with 4 MHz spi if 8MHz isn't working for you
  if (!card.init()) { //play with 8 MHz spi (default faster!)
  putstring_nl("Card init. failed!"); // Something went wrong, lets print out why
  sdErrorCheck();
  while(1); // then 'halt' - do nothing!
  }
  
  // enable optimize read - some cards may timeout. Disable if you're having problems
  card.partialBlockRead(true);
  
  // Now we will look for a FAT partition!
  uint8_t part;
  for (part = 0; part < 5; part++) { // we have up to 5 slots to look in
  if (vol.init(card, part))
  break; // we found one, lets bail
  }
  if (part == 5) { // if we ended up not finding one :(
  putstring_nl("No valid FAT partition!");
  sdErrorCheck(); // Something went wrong, lets print out why
  while(1); // then 'halt' - do nothing!
  }
  
  // Lets tell the user about what we found
  putstring("Using partition ");
  Serial.print(part, DEC);
  putstring(", type is FAT");
  Serial.println(vol.fatType(),DEC); // FAT16 or FAT32?
  
  // Try to open the root directory
  if (!root.openRoot(vol)) {
  putstring_nl("Can't open root dir!"); // Something went wrong,
  while(1); // then 'halt' - do nothing!
  }
  
  // Whew! We got past the tough parts.
  putstring_nl("Ready!");
  }
  
  void loop() {
  //putstring("."); // uncomment this to see if the loop isnt running
  switch (check_switches()) {
  case 1:
  playcomplete("SOUND1.WAV");
  break;
  case 2:
  playcomplete("SOUND2.WAV");
  break;
  case 3:
  playcomplete("SOUND3.WAV");
  break;
  case 4:
  playcomplete("SOUND4.WAV");
  break;
  case 5:
  playcomplete("SOUND5.WAV");
  break;
  case 6:
  playcomplete("SOUND6.WAV");
  }
  }
  
  byte check_switches()
  {
  static byte previous[6];
  static long time[6];
  byte reading;
  byte pressed;
  byte index;
  pressed = 0;
  
  for (byte index = 0; index < 6; ++index) {
  reading = digitalRead(14 + index);
  if (reading == LOW && previous[index] == HIGH && millis() - time[index] > DEBOUNCE)
  {
  // switch pressed
  time[index] = millis();
  pressed = index + 1;
  break;
  }
  previous[index] = reading;
  }
  // return switch number (1 - 6)
  return (pressed);
  }
  
  
  // Plays a full file from beginning to end with no pause.
  void playcomplete(char *name) {
  // call our helper to find and play this name
  playfile(name);
  while (wave.isplaying) {
  // do nothing while its playing
  }
  // now its done playing
  }
  
  void playfile(char *name) {
  // see if the wave object is currently doing something
  if (wave.isplaying) {// already playing something, so stop it!
  wave.stop(); // stop it
  }
  // look in the root directory and open the file
  if (!f.open(root, name)) {
  putstring("Couldn't open file "); Serial.print(name); return;
  }
  // OK read the file and turn it into a wave object
  if (!wave.create(f)) {
  putstring_nl("Not a valid WAV"); return;
  }
  
  // ok time to play! start playback
  wave.play();
  }

  
  
  
  

• 2

  Step 2

  Cannon electrical schematic

  Larger version here-

View all instructions