work in progress day 0

lichtschranke/polling/polling.ino

@@ -0,0 +1,125 @@
+#define PIN_LED 13
+#define PIN_SW1 2
+#define PIN_SW2 3
+#define PIN_FLASH 5
+volatile boolean sw1_flag = false;
+volatile boolean sw2_flag = false;
+
+volatile boolean sw1_released = true;
+volatile boolean sw2_released = true;
+
+unsigned long sw1_lastTime=0;
+unsigned long sw2_lastTime=0;
+
+unsigned long sw1_lastTimeMicros=0;
+unsigned long sw2_lastTimeMicros=0;
+
+#define SWDEBOUNCE 500
+
+float sensordistance = 0.37; //in meters
+
+#define TIMESCOUNT 20
+uint8_t times_index=0;
+float times[TIMESCOUNT];
+
+
+
+
+void setup() {
+  pinMode(PIN_LED, OUTPUT);
+  pinMode(PIN_SW1, INPUT_PULLUP);
+  pinMode(PIN_SW2, INPUT_PULLUP);
+
+  pinMode(PIN_FLASH, OUTPUT);
+
+  digitalWrite(PIN_FLASH, HIGH);
+
+  for (uint8_t i=0;i<TIMESCOUNT;i++){
+    times[i]=15;
+  }
+  
+
+  Serial.begin(115200);
+}
+
+void loop() {
+  //digitalWrite(PIN_LED, sw1_flag);
+
+  if (sw1_released && !digitalRead(PIN_SW1)){ //pressed
+    sw1_released=false;
+    if (sw1_lastTime+SWDEBOUNCE<millis()){
+      sw1_flag=true;
+      sw1_lastTime=millis();
+      sw1_lastTimeMicros=micros();
+    }
+  }else if (!sw1_released && digitalRead(PIN_SW1)){ //released
+    sw1_released=true;
+  }
+
+  
+  if (sw2_released && !digitalRead(PIN_SW2)){ //pressed
+    sw2_released=false;
+    if (sw2_lastTime+SWDEBOUNCE<millis()){
+      sw2_flag=true;
+      sw2_lastTime=millis();
+      sw2_lastTimeMicros=micros();
+    }
+  }else if (!sw2_released && digitalRead(PIN_SW2)){ //released
+    sw2_released=true;
+  }
+
+
+
+  if (sw1_flag){
+    sw1_flag=false;
+    //Serial.println("SW1");
+  }
+  
+  if (sw2_flag){
+    sw2_flag=false;
+
+    
+    
+    //Serial.println("SW2");
+    unsigned long timediff=sw2_lastTimeMicros-sw1_lastTimeMicros;
+    //Serial.println(timediff);
+    float meterpersecond=1.0/timediff*sensordistance*1000000;   // meter per s
+    
+    //Serial.print(meterpersecond);
+    //Serial.println(" m/s");
+
+    float kmh=meterpersecond*3.6;
+
+    if (kmh>=1){
+  
+      if (kmh>getTimesMax()){
+        digitalWrite(PIN_FLASH, LOW); //Trigger flash
+        delay(100);
+        digitalWrite(PIN_FLASH, HIGH);
+      }
+  
+      Serial.println(kmh);
+      //Serial.println(" kmh");
+  
+  
+      //add time to last times queue
+      times_index++;
+      times_index%=TIMESCOUNT-1;
+      times[times_index]=kmh;
+  
+      
+    }
+
+  }
+  
+}
+
+float getTimesMax(){
+  float timesmax=0;
+  for (uint8_t i=0;i<TIMESCOUNT;i++){
+    if (timesmax<times[i]){
+      timesmax=times[i];
+    }
+  }
+  return timesmax;
+}

lichtschranke/speedshow/speeds.txt

@@ -0,0 +1,4 @@
+1545871689576;13.18
+1545871689576;13.05
+1545871689576;12.91
+1545871689576;12.47

lichtschranke/speedshow/speedshow.pde

@@ -0,0 +1,89 @@
+import processing.serial.*;
+import java.io.FileWriter;
+import java.io.*;
+import java.util.*;
+
+Serial myPort;
+String val = "0.0";
+
+int speeds_show=5;
+float[] speeds=new float[speeds_show];
+int speeds_index=0; //points to next array index
+
+float speedfloat=0;
+
+Date d=new Date();
+
+PrintWriter pw;
+
+int unitdisplay=0;
+int unitdisplay_count=2; //how much different units available
+
+void setup() {
+  size(1500, 1000);
+  frameRate(30);
+  //String portName = "COM3";
+  String portName = "/dev/ttyUSB0";
+  myPort = new Serial(this, portName, 115200);
+  
+  pw=createWriter("speeds.txt");
+  
+  background(0);
+}
+
+
+// speed wird sein "20.08" oder
+
+void draw() {
+  if ( myPort.available() > 0) {
+    val = myPort.readString();
+    print("val = " + val);
+    val = val.substring(0,val.length()-1);
+    
+    speedfloat=float(val);
+    
+    speeds[speeds_index]=speedfloat;
+    speeds_index++;
+    speeds_index%=speeds_show;
+    
+    
+    println(d.getTime()+";"+speedfloat);
+    pw.println(d.getTime()+";"+speedfloat);
+    pw.flush();
+    
+    unitdisplay=int(random(0,unitdisplay_count));
+    unitdisplay=1;
+    println("unitdisplay: "+unitdisplay);
+    
+  }
+  
+  background(0);
+  fill(255);
+  
+  textSize(150);
+  
+  switch(unitdisplay){
+    case 0:
+      text(nf(speedfloat,1,2) + " km/h" , 100, 200);
+      break;
+    case 1:
+      text(nf(speedfloat*0.000809848,1,6) + " Mach" , 100, 200);
+      break;
+  }
+  
+  
+  
+  textSize(80);
+  //println();
+  int ipos=1;
+  for (int i=speeds_show;i>0;i--){
+    ipos++;
+    text(  nf(speeds[(speeds_show+speeds_index-1+i)%speeds_show], 1,2) ,  100, 250+(ipos)*80);
+    
+    //print(speeds[i]);
+    //print(",");
+  }
+  
+  
+  
+}