Unexpected events .... Arduino

orange_fox

Unexpected events .... Arduino

in Integration and Hardware • 1 year ago

Hi

I'm having real problems trying to work this one out, so would be very grateful for any pointers.

I've hooked up 5 LDRs to one Arduino using a breadboard, and am sucessfully getting 5 seperate readings - one for each. They each trigger a seperate mp3 file to play when the reading drops below ambient-100 (hand placed over the LDR). The audio stops as soon as the hand is removed.

It works perfectly with 3 of the LDRs, but number 5 doesn't do anything at all when the light is blocked, and when a hand is placed over LDR 4 both it's own mp3 file, and the mp3 linked to LDR 5 play at the same time! I don't understand, as they're getting seperate readings from the photoresistors.

I've tried for hours to work out where the problem is stemming from, and am pretty sure that it's not the code. Oh, it would have been so easy if it was a typing mistake! lol

Does anyone have any ideas? ..... Please! (*desperation*)

Just in case you need it, here's the code:

import processing.serial.*;
import cc.arduino.*;
import ddf.minim.*;

Minim minim, minim2;
AudioPlayer player1, player2, player3, player4, player5, player6, player7, player8, player9, player10;
int ambient;
int ambient1 = ambient;
int ambient2 = ambient;
int ambient3 = ambient;
int ambient4 = ambient;
int ambient5 = ambient;
int ambient6 = ambient;
int ambient7 = ambient;
int ambient8 = ambient;
int ambient9 = ambient;
int ambient10 = ambient;

int photocellPin1 = 0;
int photocellPin2 = 1;
int photocellPin3 = 2;
int photocellPin4 = 3;
int photocellPin5 = 4;

Arduino arduino, arduino2;

void setup() {
println(arduino.list());
arduino = new Arduino(this, Arduino.list()[0], 57600);
arduino2 = new Arduino(this, Arduino.list()[1], 57600);
size(512, 200);
minim = new Minim(this);

player1 = minim.loadFile("quiet_bass.mp3", 2048);
player2 = minim.loadFile("3_tom.mp3", 2048);
player3 = minim.loadFile("egg.mp3", 2048);
player4 = minim.loadFile("fast_bongo.mp3", 2048);
player5 = minim.loadFile("high_1.mp3", 2048);
player6 = minim.loadFile("last_bass.mp3", 2048);
player7 = minim.loadFile("off_bongo.mp3", 2048);
player8 = minim.loadFile("scrape_click.mp3", 2048);
player9 = minim.loadFile("sticks.mp3", 2048);
player10 = minim.loadFile("bass.mp3", 2048);
}

void draw() {
int photocellReading1 = arduino.analogRead(photocellPin1);
int photocellReading2 = arduino.analogRead(photocellPin2);
int photocellReading3 = arduino.analogRead(photocellPin3);
int photocellReading4 = arduino.analogRead(photocellPin4);
int photocellReading5 = arduino.analogRead(photocellPin5);
int photocellReading6 = arduino2.analogRead(photocellPin1);
int photocellReading7 = arduino2.analogRead(photocellPin2);
int photocellReading8 = arduino2.analogRead(photocellPin3);
int photocellReading9 = arduino2.analogRead(photocellPin4);
int photocellReading10 = arduino2.analogRead(photocellPin5);

if(ambient1 == 0) ambient1 = arduino.analogRead(photocellPin1);
if (photocellReading1 < ambient1-100) {
if(player1.isPlaying()) {

    }
    else {
      player1.play(0);
    }
}

else {
    if(player1.isPlaying()) {
      player1.pause();
      player1 = minim.loadFile("quiet_bass.mp3", 2048);
    }
}

if(ambient2 == 0) ambient2 = arduino.analogRead(photocellPin2);
if (photocellReading2 < ambient2-100) {
if(player2.isPlaying()) {

    }
    else {
      player2.play(0);
    }
}

else {
    if(player2.isPlaying()) {
      player2.pause();
      player2 = minim.loadFile("3_tom.mp3", 2048);
    }
}

    if(ambient3 == 0) ambient3 = arduino.analogRead(photocellPin3);
if (photocellReading3 < ambient3-100) {
    if(player3.isPlaying()) {

    }
    else {
      player3.play(0);
    }
}

else {
    if(player3.isPlaying()) {
      player3.pause();
      player3 = minim.loadFile("egg.mp3", 2048);
    }
}

if(ambient4 == 0) ambient4 = arduino.analogRead(photocellPin4);
if (photocellReading4 < ambient4-100) {
if(player4.isPlaying()) {

    }
    else {
      player4.play(0);
    }
}

else {
    if(player4.isPlaying()) {
      player4.pause();
      player4 = minim.loadFile("fast_bongo.mp3", 2048);
    }
}


     if(ambient5 == 0) ambient5 = arduino.analogRead(photocellPin5);
if (photocellReading5 < ambient5-100) {
    if(player5.isPlaying()) {

    }
    else {
      player5.play(0);
    }
}

else {
    if(player5.isPlaying()) {
      player5.pause();
      player5 = minim.loadFile("high_1.mp3", 2048);
    }
}

if(ambient6 == 0) ambient6 = arduino2.analogRead(photocellPin1);
if (photocellReading6 < ambient6-100) {
if(player6.isPlaying()) {

    }
    else {
      player6.play(0);
    }
}

else {
    if(player6.isPlaying()) {
      player6.pause();
      player6 = minim.loadFile("last_base.mp3", 2048);
    }
}

   if(ambient7 == 0) ambient7 = arduino2.analogRead(photocellPin2);
if (photocellReading7 < ambient7-100) {
    if(player7.isPlaying()) {

    }
    else {
      player7.play(0);
    }
}

else {
    if(player7.isPlaying()) {
      player7.pause();
      player7 = minim.loadFile("off_bongo.mp3", 2048);
    }
}

   if(ambient8 == 0) ambient8 = arduino2.analogRead(photocellPin3);
if (photocellReading8 < ambient8-100) {
    if(player8.isPlaying()) {

    }
    else {
      player8.play(0);
    }
}

else {
    if(player8.isPlaying()) {
      player8.pause();
      player8 = minim.loadFile("scrape_click.mp3", 2048);
    }
}

   if(ambient9 == 0) ambient9 = arduino2.analogRead(photocellPin4);
if (photocellReading9 < ambient9-100) {
    if(player9.isPlaying()) {

    }
    else {
      player9.play(0);
    }
}

else {
    if(player9.isPlaying()) {
      player9.pause();
      player9 = minim.loadFile("sticks.mp3", 2048);
    }
}

   if(ambient10 == 0) ambient10 = arduino.analogRead(photocellPin5);
if (photocellReading10 < ambient10-100) {
    if(player10.isPlaying()) {

    }
    else {
      player10.play(0);
    }
}

else {
    if(player10.isPlaying()) {
      player10.pause();
      player10 = minim.loadFile("bass.mp3", 2048);
    }
}

println("Pin 1 = " + photocellReading1);
println("Ambient1 = " + ambient1);

println("Pin 2 = " + photocellReading2);
println("Ambient2 = " + ambient2);

println("Pin 3 = " + photocellReading3);
println("Ambient3 = " + ambient3);

println("Pin 4 = " + photocellReading4);
println("Ambient4 = " + ambient4);

println("Pin 5 = " + photocellReading5);
println("Ambient5 = " + ambient5);

println("Pin 6 = " + photocellReading6);
println("Ambient6 = " + ambient6);

println("Pin 7 = " + photocellReading7);
println("Ambient7 = " + ambient7);

println("Pin 8 = " + photocellReading8);
println("Ambient8 = " + ambient8);

println("Pin 9 = " + photocellReading9);
println("Ambient9 = " + ambient9);

println("Pin 10 = " + photocellReading10);
println("Ambient10 = " + ambient10);

delay(10);
}

void stop()
{
player1.close();
player2.close();
player3.close();
player4.close();
player5.close();
player6.close();
player7.close();
player8.close();
player9.close();
player10.close();

minim.stop();
super.stop();
}

(I know I should be using arrays ... but I haven't learnt how to yet! :-/ )

Thanks in advance

Kate

Replies(7)

PhiLho

Re: Unexpected events .... Arduino

1 year ago

About arrays, tell me if the article From several variables to arrays is helpful. If not, I would like to know what are the difficult/unclear parts.

I am not competent about Arduino matters, but I see you load again the sound files. I don't think you should/need to do that.
And I am not sure to have understood what is your problem...

orange_fox

Re: Re: Unexpected events .... Arduino

1 year ago

Hi PhiLho

I'm planning on getting to grips with arrays, but just haven't had time yet unfortunately. This project (making the physical objects that encase it) has been taking up 14 hurs a day for the last two weeks! Unfortunately it's due in next week, and as I'm pushed for time and the code is already working (apart from the glitch mentioned above), I've had to leave making the code more efficient until last. I'm just glad that, on a whole, it's working at the moment! :-)

Yes, I decided to reload the sound files each time they played because if I just rewound them then I'd get a split second of what was left in the buffer playing (See: http://forum.processing.org/topic/stop-start-audioplayer#25080000001607011). I know this is messy, but it's the only way I could get it to sound right.

A section of my original comment appears to have disappeared, so I'll go back and edit now. Sorry for the confusion.

Kate

Jesse Sco..

Re: Unexpected events .... Arduino

1 year ago

First, your code is a little hard to read (I know you haven't gotten to arrays yet... took me a while too

)

Try the auto format (ctrl-t I think), otherwise, make sure you use the 'Insert Code' button in the toolbar here for your code.

Also, try to tab your nested if statements, as it's easier to read at a glance where they start and begin.. ie. :

if(ambient4 == 0) ambient4 = arduino.analogRead(photocellPin4);
if (photocellReading4 < ambient4-100) {
if(player4.isPlaying()) {
// nothing ??? maybe just try if(player4.!isPlaying()) then you can get rid of the else...
}
else {
player4.play(0);
}
}
else {
if(player4.isPlaying()) {
player4.pause();
player4 = minim.loadFile("fast_bongo.mp3", 2048);
}
}

As to your issue, are player6 and above working ? Or is 4 & 5 the farthest the code is affecting ?

orange_fox

Re: Re: Unexpected events .... Arduino

1 year ago

Thanks for the pointers! Noted for next time! :-)

Sorry, yes 6-10 are all working. They're on a seperate Arduino board though (5 on each). Yes it's just 4 and 5 that aren't working.

Jesse Sco..

Re: Unexpected events .... Arduino

1 year ago

Have you tested that the conditionals are being met properly?

ie. printing something to the console, etc ?

orange_fox

Re: Re: Unexpected events .... Arduino

1 year ago

Do you mean something like this?

if(ambient4 == 0) ambient4 = arduino.analogRead(photocellPin4);
if (photocellReading4 < ambient4-100) {
if(player4.isPlaying()) {
}
else {
player4.play(0);
println("Stop");
}
}
else {
if(player4.isPlaying()) {
player4.pause();
player4 = minim.loadFile("fast_bongo.mp3", 2048);
println("Play");
}
}

Jesse Sco..

Re: Unexpected events .... Arduino

1 year ago

Yes. Are those printing?

Though play(0) is more of a play command, is it not ?

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