RFID and Video

Core Library Questions

ch1991

in Core Library Questions • 5 months ago

Hello,

I am having trouble getting a video to play once a RFID tag is placed on the reader.

I have looked at the references on this site and tried google but I can't anything about getting videos to play.

I have been able to get it to work with images, but I don't know how to get a video to pop up and play once a RFID tag is placed. Could anyone help please?

Here is the code I have got for getting images up with RFID:

import processing.serial.*;
Serial myPort;
String inString;
String RFID1 = "67005DB143C8"; //Card 1 RFID
String RFID2 = "67005DC651AD"; //Card 2 RFID
String RFID3 = "2500AC086AEB"; //Card 3 RFID
PImage jpg;
boolean sketchFullScreen() {
return true;
}
void setup()
{
size(1280, 1024);
myPort = new Serial(this, Serial.list()[5], 9600);
myPort.bufferUntil('\n');
jpg = loadImage("scan.jpg");
imageMode(CENTER);
if (frame != null) {
frame.setResizable(true);
}
}
void draw()
{
background(255);
image(jpg, width/2, height/2);
if(inString != null){
fill(150,255);
}
}
void serialEvent (Serial myPort) {
inString = myPort.readStringUntil('\n');
if (inString != null) {
inString = trim(inString); // trim off any whitespace:
print("RFID = " + inString + " : ");
if (RFID1.equals(inString) == true){ //checks inString to see if it matches the first RFID
println("Card 1");
jpg = loadImage("card1.jpg");
}
if (RFID2.equals(inString) == true){ //checks inString to see if it matches the first RFID
println("Card 2");
jpg = loadImage("card2.jpg");
}
if (RFID3.equals(inString) == true){ //checks inString to see if it matches the first RFID
println("Card 3");
jpg = loadImage("card3.jpg");
}
}
}

Replies(4)

philomax

I am working on a similar project. I got my video to play with my RFID tag but it's extremely choppy and does not continue playing (only audio) when I remove the tag. I used a piece of your code in mine. Now the choppiness is the problem!

import processing.serial.*;
import processing.video.*;
Serial rfidPort;
String tagID = "";
Movie[] myVids = new Movie[1];
void setup(){
size(800,600);
println(Serial.list());
String portnum = Serial.list()[0];
rfidPort = new Serial(this, portnum, 2400);
rfidPort.buffer(12);
PFont myFont = createFont(PFont.list()[2], 24);
textFont(myFont);
myVids[0] = new Movie(this, "brave.mp4");
}
void draw(){
text(tagID, width/4, height/2 - 24);
}
void serialEvent(Serial rfidPort) {
tagID = trim(rfidPort.readString());
if (tagID.equals("84003435BC") == true) {
image(myVids[0],0,0);
myVids[0].play();
}} void movieEvent(Movie m) {
m.read();
m.available();
}

PhiLho

Re: RFID and Video

5 months ago

philomax, if you start to play the movie each time a tag is read, and if you need such tag to be read to display one image of the movie, you are indeed in trouble.
You should call play() only once, the first time the tag is read. Use a boolean variable to check the tag. And move the image() call somewhere else, probably in the movieEvent() or in draw().

ch1991

Re: RFID and Video

5 months ago

Thanks both of yous for your input.

PhiLho, I'm a bit confused as to what philomax's code is. Could you possibly write out the code you were talking about please.

Cheers.

PhiLho

Re: RFID and Video

5 months ago

I think the last part of his sketch should be:

boolean playingMovie;
void draw() {
if (playingMovie) {
image(myVids[0],0,0);
}
text(tagID, width/4, height/2 - 24);
}
void serialEvent(Serial rfidPort) {
tagID = trim(rfidPort.readString());
if (!playingMovie && tagID.equals("84003435BC")) {
myVids[0].play();
playingMovie = true;
}
}
void movieEvent(Movie m) {
m.read();
}

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