work in progress day 0
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#define PIN_LED 13
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#define PIN_SW1 2
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#define PIN_SW2 3
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#define PIN_FLASH 5
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volatile boolean sw1_flag = false;
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volatile boolean sw2_flag = false;
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volatile boolean sw1_released = true;
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volatile boolean sw2_released = true;
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unsigned long sw1_lastTime=0;
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unsigned long sw2_lastTime=0;
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unsigned long sw1_lastTimeMicros=0;
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unsigned long sw2_lastTimeMicros=0;
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#define SWDEBOUNCE 500
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float sensordistance = 0.37; //in meters
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#define TIMESCOUNT 20
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uint8_t times_index=0;
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float times[TIMESCOUNT];
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void setup() {
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pinMode(PIN_LED, OUTPUT);
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pinMode(PIN_SW1, INPUT_PULLUP);
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pinMode(PIN_SW2, INPUT_PULLUP);
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pinMode(PIN_FLASH, OUTPUT);
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digitalWrite(PIN_FLASH, HIGH);
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for (uint8_t i=0;i<TIMESCOUNT;i++){
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times[i]=15;
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}
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Serial.begin(115200);
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}
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void loop() {
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//digitalWrite(PIN_LED, sw1_flag);
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if (sw1_released && !digitalRead(PIN_SW1)){ //pressed
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sw1_released=false;
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if (sw1_lastTime+SWDEBOUNCE<millis()){
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sw1_flag=true;
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sw1_lastTime=millis();
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sw1_lastTimeMicros=micros();
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}
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}else if (!sw1_released && digitalRead(PIN_SW1)){ //released
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sw1_released=true;
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}
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if (sw2_released && !digitalRead(PIN_SW2)){ //pressed
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sw2_released=false;
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if (sw2_lastTime+SWDEBOUNCE<millis()){
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sw2_flag=true;
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sw2_lastTime=millis();
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sw2_lastTimeMicros=micros();
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}
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}else if (!sw2_released && digitalRead(PIN_SW2)){ //released
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sw2_released=true;
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}
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if (sw1_flag){
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sw1_flag=false;
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//Serial.println("SW1");
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}
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if (sw2_flag){
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sw2_flag=false;
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//Serial.println("SW2");
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unsigned long timediff=sw2_lastTimeMicros-sw1_lastTimeMicros;
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//Serial.println(timediff);
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float meterpersecond=1.0/timediff*sensordistance*1000000; // meter per s
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//Serial.print(meterpersecond);
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//Serial.println(" m/s");
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float kmh=meterpersecond*3.6;
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if (kmh>=1){
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if (kmh>getTimesMax()){
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digitalWrite(PIN_FLASH, LOW); //Trigger flash
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delay(100);
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digitalWrite(PIN_FLASH, HIGH);
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}
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Serial.println(kmh);
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//Serial.println(" kmh");
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//add time to last times queue
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times_index++;
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times_index%=TIMESCOUNT-1;
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times[times_index]=kmh;
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}
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}
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}
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float getTimesMax(){
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float timesmax=0;
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for (uint8_t i=0;i<TIMESCOUNT;i++){
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if (timesmax<times[i]){
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timesmax=times[i];
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}
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}
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return timesmax;
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}
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@ -0,0 +1,4 @@
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1545871689576;13.18
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1545871689576;13.05
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1545871689576;12.91
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1545871689576;12.47
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@ -0,0 +1,89 @@
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import processing.serial.*;
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import java.io.FileWriter;
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import java.io.*;
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import java.util.*;
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Serial myPort;
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String val = "0.0";
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int speeds_show=5;
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float[] speeds=new float[speeds_show];
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int speeds_index=0; //points to next array index
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float speedfloat=0;
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Date d=new Date();
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PrintWriter pw;
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int unitdisplay=0;
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int unitdisplay_count=2; //how much different units available
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void setup() {
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size(1500, 1000);
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frameRate(30);
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//String portName = "COM3";
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String portName = "/dev/ttyUSB0";
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myPort = new Serial(this, portName, 115200);
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pw=createWriter("speeds.txt");
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background(0);
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}
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// speed wird sein "20.08" oder
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void draw() {
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if ( myPort.available() > 0) {
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val = myPort.readString();
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print("val = " + val);
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val = val.substring(0,val.length()-1);
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speedfloat=float(val);
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speeds[speeds_index]=speedfloat;
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speeds_index++;
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speeds_index%=speeds_show;
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println(d.getTime()+";"+speedfloat);
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pw.println(d.getTime()+";"+speedfloat);
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pw.flush();
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unitdisplay=int(random(0,unitdisplay_count));
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unitdisplay=1;
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println("unitdisplay: "+unitdisplay);
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}
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background(0);
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fill(255);
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textSize(150);
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switch(unitdisplay){
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case 0:
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text(nf(speedfloat,1,2) + " km/h" , 100, 200);
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break;
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case 1:
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text(nf(speedfloat*0.000809848,1,6) + " Mach" , 100, 200);
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break;
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}
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textSize(80);
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//println();
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int ipos=1;
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for (int i=speeds_show;i>0;i--){
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ipos++;
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text( nf(speeds[(speeds_show+speeds_index-1+i)%speeds_show], 1,2) , 100, 250+(ipos)*80);
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//print(speeds[i]);
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//print(",");
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}
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}
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After Width: | Height: | Size: 417 KiB |
After Width: | Height: | Size: 360 KiB |
After Width: | Height: | Size: 474 KiB |