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June 30, 2015 03:04
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Current sensing music player
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| /*************************************************** | |
| This code takes input from a non-ivasive current sensor connected to a lamp. | |
| When the lamp is turned on it plays a track on the VS1053 mp3 player (see | |
| link below). The tracks advance each time the lamp is turned on and if the | |
| lamp is left on tracks loop. | |
| - Music files must be labeled track001.mp3, track002.mp3, etc. | |
| - NUM_TRACKS must be set to the number of tracks on the SD card | |
| Much of this code based off of Limor Fried's VS1053 sample code | |
| Adafruit VS1053 Codec Breakout | |
| ----> https://www.adafruit.com/products/1381 | |
| Non invasive current sensor: | |
| ----> https://www.sparkfun.com/products/11005 | |
| 2015 Rob Seward | |
| ****************************************************/ | |
| // include SPI, MP3 and SD libraries | |
| #include <SPI.h> | |
| #include <Adafruit_VS1053.h> | |
| #include <SD.h> | |
| // define the pins used | |
| //#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 http://arduino.cc/en/Reference/SPI "Connections" | |
| // These are the pins used for the breakout example | |
| #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 | |
| #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 http://arduino.cc/en/Reference/attachInterrupt | |
| #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); | |
| // create shield-example object! | |
| Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS); | |
| #define SENSOR_PIN A0 | |
| #define NUM_TRACKS 13 | |
| void setup() { | |
| Serial.begin(9600); | |
| Serial.println("Lamp music player"); | |
| 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")); | |
| if (!SD.begin(CARDCS)) { | |
| Serial.println(F("SD failed, or not present")); | |
| while (1); // don't do anything more | |
| } | |
| // Set volume for left, right channels. lower numbers == louder volume! | |
| musicPlayer.setVolume(1,1); | |
| // 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 | |
| pinMode(SENSOR_PIN, INPUT); | |
| // Play another file in the background, REQUIRES interrupts! | |
| //Serial.println(F("Playing track 001")); | |
| //musicPlayer.startPlayingFile("track001.mp3"); | |
| } | |
| int trackCounter = 1; | |
| bool previousLampOn = false; | |
| void loop() { | |
| char trackName[8]; | |
| sprintf(trackName, "track%03d.mp3", trackCounter); | |
| bool lampOn = isCurrentDetected(); | |
| if (lampOn != previousLampOn){ | |
| if (lampOn){ | |
| musicPlayer.startPlayingFile(trackName); | |
| advanceTrack(); | |
| Serial.println(trackName); | |
| } | |
| else if (!lampOn){ | |
| musicPlayer.stopPlaying(); | |
| } | |
| } | |
| if (lampOn && !musicPlayer.playingMusic) { | |
| musicPlayer.startPlayingFile(trackName); | |
| advanceTrack(); | |
| Serial.println(trackName); | |
| } | |
| previousLampOn = lampOn; | |
| // print out the value you read: | |
| //Serial.println(sensorValue); | |
| delay(1); // delay in between reads for stability | |
| } | |
| void advanceTrack(){ | |
| trackCounter = (trackCounter % NUM_TRACKS) + 1; | |
| } | |
| bool highVoltageDetected = false; | |
| int flatVoltageCounter = 0; | |
| bool isCurrentDetected(){ | |
| int counterThreshold = 50; | |
| if (flatVoltageCounter > counterThreshold) { | |
| flatVoltageCounter = 0; | |
| highVoltageDetected = false; | |
| } | |
| int sensorValue = analogRead(SENSOR_PIN); | |
| int voltageThreshold = 50; | |
| if (sensorValue > voltageThreshold) { | |
| highVoltageDetected = true; | |
| flatVoltageCounter = 0 ; | |
| } | |
| else { | |
| flatVoltageCounter++; | |
| } | |
| // Serial.println(highVoltageDetected, DEC); | |
| return highVoltageDetected; | |
| } |
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