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flipdot
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use mqtt data to draw dots

This commit is contained in:
interfisch 2024-12-03 21:09:07 +01:00
parent 5a4baf832b
commit d2a14219fa
1 changed files with 35 additions and 3 deletions
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38
mqtt_flipdot_simulator/mqtt_flipdot_simulator.pde
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@ -11,26 +11,42 @@ static float pixelborderweight=1;
color colorWhite=color(240,255,150);
color colorBlack=color(50,50,50);
color colorBG=color(127,127,127);
String lastDataReceived="";
int lastDataReceivedTime=0;
PGraphics pg;
PFont smallfont;
// The font must be located in the sketch's
// "data" directory to load successfully
void setup() {
size(1300,300);
smooth(0);
pg = createGraphics(int(displaywidth*pixeldistance+pixelborderweight/2),int(displayheight*pixeldistance+pixelborderweight/2));
background(127);
background(colorBG);
//printArray(PFont.list());
smallfont = createFont("Monospaced.plain", 12);
client = new MQTTClient(this);
client.connect("mqtt://192.168.1.6", "processing-flipdot");
}
void draw() {
fill(colorBG);
rect(0,0,width,height);
pg.beginDraw();
pg.clear();
for (int y=0;y<displayheight;y++){
for (int x=0;x<displaywidth;x++){
pg.strokeWeight(pixelborderweight);
if (int(random(3))==0) {
if (getPixelFromString(x,y)) {
pg.stroke(0,0,0);
pg.fill(colorWhite);
}else{
@ -42,10 +58,25 @@ void draw() {
}
pg.endDraw();
image(pg,5,5);
textFont(smallfont);
fill(255,255,255);
int showFirstData=100;
int showLastData=32;
text(lastDataReceived.substring(0,min(showFirstData,lastDataReceived.length()))+"..",5,pg.height+16);
text(".."+lastDataReceived.substring(max(lastDataReceived.length()-showLastData,0),lastDataReceived.length()), (showFirstData+2)*7.3 ,pg.height+16);
text("length="+lastDataReceived.length(), (showFirstData+2)*7.3+(showLastData+2)*7.3 ,pg.height+16);
text((millis()-lastDataReceivedTime)/1000.0+"s", 5,pg.height+16+16);
}
boolean getPixelFromString(int x,int y){
return lastDataReceived.charAt(x*displayheight+y)=='1';
if (lastDataReceived.length()>x*displayheight+y){
return lastDataReceived.charAt(x*displayheight+y)=='1';
}else{
return false;
}
}
void clientConnected() {
@ -58,6 +89,7 @@ void messageReceived(String topic, byte[] payload) {
//println("new message: " + topic + " - " + new String(payload));
println("new message: " + topic + " len= " + (new String(payload)).length());
lastDataReceived=new String(payload);
lastDataReceivedTime=millis();
}
void connectionLost() {