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By Link1985
Hello. I'm working on a trap. I have the electronics together and programmed. I found the sound files for Ghostbusters one when they catch Slimer at the Sedgewick hotel. I just went through my code and commented most of the lines to describe what different lines do. I also linked in the components and where I found them; they are mostly from Adafruit. I will post it here so you can download it and use it as a template. Fair warning, I'm not a programmer, there is some extra stuff in there, and there are probably better/easier ways to do the stuff I did, but it should get you started on a working configuration. I plan on using the 3-D files put out by countspatula on Thingiverse: I'm getting my 3-D printer early next year, so I'm pretty much at a stopping point until then.
Here's a demo video:
The sound is quiet because I had the speakers turned down, but it can get pretty loud.
Here is the code I use:
Code: Select all/*************************************************** This is an example for the Adafruit VS1053 Codec Breakout Designed specifically to work with the Adafruit VS1053 Codec Breakout ----> Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Limor Fried/Ladyada for Adafruit Industries. BSD license, all text above must be included in any redistribution ****************************************************/ //This is my code for the ghost trap. I will comment things to the best of my understanding and include component links so you can replicate my model if you want to. // include SPI, MP3 and SD libraries. I'm using this sound shield: #include <SPI.h> #include <Adafruit_VS1053.h> // The library can be found following the instructions at this link: #include <SD.h> #include <Servo.h> //this is the servo library built in to the arduino files. #include <Wire.h> #include <Adafruit_GFX.h> //this is part of the library for the light bar #include "Adafruit_LEDBackpack.h" // this is the light bar and backpack I used: // there is a link on there to download the library files. Adafruit_24bargraph bar = Adafruit_24bargraph(); // This defines the bargraph as 'bar' to be called later in the program. Servo servoLeft; // This attaches the left servo. I'musing these servos: Servo servoRight; // This attaches the right servo. You can call them what you want, but left and right made sense to me. // define the pins used. These aren't used in the shield configuration. I plan on deleting this to clean up the code, but I kept it in because this is from the example code that is available for the shield //#define CLK 13 // SPI Clock, shared with SD card //#define MISO 12 // Input data, from VS1053/SD card //#define MOSI 11 // Output data, to VS1053/SD card // Connect CLK, MISO and MOSI to hardware SPI pins. // See "Connections" // These are the pins used for the breakout example. The breakout mode is if you plugged it into a breakout board. //#define BREAKOUT_RESET 9 // VS1053 reset pin (output) //#define BREAKOUT_CS 10 // VS1053 chip select pin (output) //#define BREAKOUT_DCS 8 // VS1053 Data/command select pin (output) // These are the pins used for the music maker shield. This is the configuration I use. #define SHIELD_RESET -1 // VS1053 reset pin (unused!) #define SHIELD_CS 7 // VS1053 chip select pin (output) #define SHIELD_DCS 6 // VS1053 Data/command select pin (output) // These are common pins between breakout and shield #define CARDCS 4 // Card chip select pin // DREQ should be an Int pin, see #define DREQ 3 // VS1053 Data request, ideally an Interrupt pin Adafruit_VS1053_FilePlayer musicPlayer = // create breakout-example object! //Adafruit_VS1053_FilePlayer(BREAKOUT_RESET, BREAKOUT_CS, BREAKOUT_DCS, DREQ, CARDCS); This call the variable pins defined in the breakout example above. // create shield-example object! Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS); // This is the configuration we use. //starting the button counter code. The whole sequence runs on a button counter system. sometimes the button count in incremented by pressing the switch, other times // it auto-increments in the code to get to the next step. int counter = 0; // set the variable counter to 0 to start it. I'm using this switch: int buttonstate = 0; // this variable has the current state, high or low, written to it. int laststate = 0; // this variable has the last state, high or low, written to it. int lightPin = 2; // This is the pin for the steady on white lights. int yellowlight = A0; // This is the pin the yellow light next to the light bar is attached to. int redlight = A1; // This is the pin the blinking red light at the back of the trap is attached to. // I used an object oriented program solution to handle the multiple blinking lights without delay. //There is an awesome tutorial I followed and adapted here: class Flasher { int ledpin; long ontime; long offtime; int ledstate; unsigned long previousmillis; public: Flasher(int pin, long off, long on) { ledpin = pin; pinMode(ledpin, OUTPUT); ontime = on; offtime = off; ledstate = LOW; previousmillis = 0; } void update() { unsigned long currentmillis = millis(); if ((ledstate == HIGH) && (currentmillis - previousmillis >= ontime)) { ledstate = LOW; previousmillis = currentmillis; digitalWrite(ledpin, ledstate); } else if ((ledstate == LOW) && (currentmillis - previousmillis >= offtime)) { ledstate = HIGH; previousmillis = currentmillis; digitalWrite(ledpin, ledstate); } } }; Flasher led8(8, 500, 50); //This is for the flashing white lights when the trap is open. Flasher led1(A1, 244, 33); // this is for the red blinking light after the trap is closed. It is timed to approximately match the sound beeps. void setup() { musicPlayer.GPIO_pinMode(5, INPUT); //This is where the foot switch is connected and how to call the sound shield input pins for use. //musicPlayer.GPIO_pinMode(6, OUTPUT); Serial.begin(9600); bar.begin(0x70); // pass in the address. This is super important. I was stuck for about a week because I forgot to put this line in here. // This tells the arduino where to look for the bar graph so it will operate. It uses the variable 'bar' that we set in the beginning. Serial.println("Adafruit VS1053 Simple Test"); if (! musicPlayer.begin()) { // initialise the music player Serial.println(F("Couldn't find VS1053, do you have the right pins defined?")); while (1); } Serial.println(F("VS1053 found")); // This verifies the sound shield is working properly. SD.begin(CARDCS); // initialise the SD card // Set volume for left, right channels. lower numbers == louder volume! I'm using these speakers: ////////////////////////////////////////////////////////////////////// musicPlayer.setVolume(20,20); // enable pull-up resistors on switch pins (analog inputs) // These are place holders in case I wanted to use them. //musicPlayer.GPIO_digitalWrite(1, HIGH); //musicPlayer.GPIO_digitalWrite(2, HIGH); //musicPlayer.GPIO_digitalWrite(3, HIGH); //musicPlayer.GPIO_digitalWrite(4, HIGH); musicPlayer.GPIO_digitalWrite(5, LOW); //This pin was set to INPUT earlier, now we set the initial value. It doesn't have to be separated, and I will probably remove the unused lines later. //musicPlayer.GPIO_digitalWrite(6, HIGH); // Timer interrupts are not suggested, better to use DREQ interrupt! //musicPlayer.useInterrupt(VS1053_FILEPLAYER_TIMER0_INT); // timer int // If DREQ is on an interrupt pin (on uno, #2 or #3) we can do background // audio playing musicPlayer.useInterrupt(VS1053_FILEPLAYER_PIN_INT); // DREQ int. I'm not sure what this is, but it works like this so I'm pressing the 'I believe button.' pinMode(lightPin, OUTPUT); // setting the pin modes for the constant on white lights we defined earlier. digitalWrite(lightPin, LOW); pinMode(yellowlight, OUTPUT); // setting the pin modes for the yellow light near the light bar. digitalWrite(yellowlight, LOW); pinMode(redlight, OUTPUT); // setting the pin modes for the red blinking light in the back. digitalWrite(redlight, LOW); servoLeft.attach(A2); // attaching the left servo to a pin servoRight.attach(A3); // attaching the right servo to a pin servoLeft.write(30); // setting the initial angle of the servo. For now, they are both set to the same. servoRight.write(30); // setting the initial angle of the servo. Upon installation, they will be moving in different directions, so this is where the initial angles will be reset. for (uint8_t b=0; b<13; b++) { bar.setBar(b, LED_OFF); bar.writeDisplay(); } bar.writeDisplay(); } // This initializes the bargraph settings. I modified this from the sample code that is downloaded with the libraries. void loop() { //putstring("."); // uncomment this to see if the loop isnt running buttonstate = musicPlayer.GPIO_digitalRead(5); // this is the start of the buttoncounting system. if (buttonstate != laststate) { if (buttonstate == HIGH) { counter++; // increments the count from 0 to 1 and performs the following 'if' loop. } } if (counter == 1){ digitalWrite(lightPin, HIGH); //constant on white lights turn on. servoLeft.write(110); // servos move to the open angle. again, this is where you change the angle when they are installed and moving in different directions. servoRight.write(110); // they are both set the same for troubleshooting and operation verification. musicPlayer.playFullFile("track001.mp3"); //this is what I called the opening sound to keep it simple. Make sure the file is saved with the exact same name on the SD card. // the playFullFile command playes the entire file before moving to the next line of code. counter++; //auto increments counter from 1 to 2. This moves to the next 'if' statement to avoid the opening sound being played over and over again. } if (counter == 2){ led8.update(); // This begins the flashing white LEDs servoLeft.detach(); // I detach the servos so they are not constantly getting power. servoRight.detach(); // They have enough resistance even when off that the doors should stay open. This should conserve battery life. } // The counter increments on the next foot switch press. The trap will hold this open mode until then. if (counter == 3) { digitalWrite(8, HIGH); // the white leds that were flashing turn constant on to give a brightening effect. musicPlayer.startPlayingFile("track002.mp3"); // the ghost trapping and closing sound file is played. Here, I use the startPlayingFile command. // This command will move to the next line of code while to music file is being played. counter++;} // counter auto-increments from 3 to 4. This happens while the sound is playing because of the startPlayingFile command used. if (counter == 4){ delay(3900); //This is timed to synch up the servos closing with the sound file. servoLeft.attach(A2); //reattach the servos to close the doors. servoRight.attach(A3); delay(100); //provide a small delay for the servo attachment to process. this does not interfere with the sound file. servoLeft.write(30); // servos move to closed position that they started in. servoRight.write(30); delay(100); // small delay to before detaching servos and allowing them time to move. Omitting this delay can cause reliability issues with the servos. servoLeft.detach(); // detach the servos like before. servoRight.detach(); digitalWrite(lightPin, LOW); //turn off all constant on white leds when the doors close. digitalWrite(8, LOW); // turn off all constant on leds that were previously flashing when doors close. delay(2930); // delay to synch up the light bar with the sound file. for (uint8_t b=0; b<13; b++) { bar.setBar(b, LED_YELLOW); // sets bar graph color to yellow bar.writeDisplay(); delay(50); // sets the time between each segment lighting up. 50 ms seems about right with the sound file. // bar.setBar(b, LED_OFF); // bar.writeDisplay(); } digitalWrite(yellowlight, HIGH); // yellow led turn on when the light bar loop is complete. delay(1000); // delay to synch timing of red light with beeps. counter ++; // counter auto increments from 4 to 5. This is so the light bar will stay on instead of sweeping full over and over again. } if (counter == 5){ led1.update(); // turns on the red flashing led using the flasher class we defined up at the top. //button counter waits until the next switch press. The trap will stay in the current state until then. } if (counter == 6){ digitalWrite(yellowlight, LOW); // turns yellow light next to light bar off. digitalWrite(A1, LOW); // turns red led off. for (uint8_t b=0; b<13; b++) { bar.setBar(b, LED_OFF); bar.writeDisplay(); } // turns light bar off. delay(100); counter = 0; //sets button counter to 0 to start over again. servoLeft.attach(A2); // reattach servos to start sequence again servoRight.attach(A3); delay(100); // processing delay. } //this is a reset so the trap sequence is repeatable. The only limitation currently is I have to wait until the sound beeps stop to reset it. // I could add some code to turn off the music player if I wanted to, but I'm happy enough with it. }
Last edited by Kingpin on September 15th, 2017, 3:40 pm, edited 1 time in total. Reason: Added youtube code
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