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blitzer
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add both directions

This commit is contained in:
interfisch 2022-07-23 14:49:47 +02:00
parent b03835a4fe
commit fc3a617c60
1 changed files with 78 additions and 20 deletions
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96
blitzercontroller/src/main.cpp
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@ -1,28 +1,35 @@
#include <Arduino.h> #include <Arduino.h>
float flashspeed=20; //in kmh
unsigned long flashdeadtime=1000; //in ms
#define PIN_SW1 D6 #define PIN_SW1 D6
#define PIN_SW2 D7 #define PIN_SW2 D5
#define PIN_TRIGGER D7
volatile boolean sw1_flag = false; volatile boolean sw1_flag = false;
volatile boolean sw2_flag = false; volatile boolean sw2_flag = false;
unsigned long sw1_lastTime=0; unsigned long sw1_lastTime=0;
unsigned long sw2_lastTime=0; unsigned long sw2_lastTime=0;
float calib_distance=0.2; //distance of sensors in meters float calib_distance=0.062; //distance of sensors in meters
#define SWDEBOUNCE 100 #define SWDEBOUNCE 100000
void interrupt_sw1(); ICACHE_RAM_ATTR void interrupt_sw1();
void interrupt_sw2(); ICACHE_RAM_ATTR void interrupt_sw2();
float getLastSpeed(); float getLastSpeed1();
float getLastSpeed2();
void doTrigger1();
void doTrigger2();
void setup() { void setup() {
pinMode(PIN_SW1, INPUT_PULLUP); pinMode(PIN_SW1, INPUT_PULLUP);
pinMode(PIN_SW2, INPUT_PULLUP); pinMode(PIN_SW2, INPUT_PULLUP);
pinMode(PIN_TRIGGER, OUTPUT);
attachInterrupt(digitalPinToInterrupt(PIN_SW1), interrupt_sw1, FALLING); attachInterrupt(digitalPinToInterrupt(PIN_SW1), interrupt_sw1, FALLING);
attachInterrupt(digitalPinToInterrupt(PIN_SW2), interrupt_sw2, FALLING); attachInterrupt(digitalPinToInterrupt(PIN_SW2), interrupt_sw2, FALLING);
digitalWrite(PIN_TRIGGER, HIGH); //active low
Serial.begin(115200); Serial.begin(115200);
} }
@ -31,33 +38,84 @@ void loop() {
if (sw1_flag){ if (sw1_flag){
sw1_flag=false; sw1_flag=false;
sw1_lastTime=millis(); sw1_lastTime=micros();
Serial.println("SW1"); Serial.println("SW1");
doTrigger1();
} }
if (sw2_flag){ if (sw2_flag){
sw2_flag=false; sw2_flag=false;
sw2_lastTime=millis(); sw2_lastTime=micros();
Serial.println("SW2"); Serial.println("SW2");
doTrigger2();
float speed=getLastSpeed();
Serial.print("Speed="); Serial.print(speed); Serial.println(" m/s");
Serial.print(" "); Serial.print(speed*3.6); Serial.println(" km/h");
} }
} }
void interrupt_sw1() {
if (sw1_lastTime+SWDEBOUNCE<millis()){ void doTrigger1() {
static unsigned long last_flash=0;
float speed=getLastSpeed1();
if (speed*3.6<0.1) {
return;
}
if (millis()-last_flash>flashdeadtime) { //deadtime
last_flash=millis();
if (speed*3.6 >= flashspeed) {
Serial.print("> Speed="); Serial.print(speed*3.6); Serial.println(" km/h");
Serial.println("Flash");
pinMode(PIN_TRIGGER, INPUT); //high impedance
delay(100);
pinMode(PIN_TRIGGER, OUTPUT); digitalWrite(PIN_TRIGGER, LOW);
}
}
}
void doTrigger2() {
static unsigned long last_flash=0;
float speed=getLastSpeed2();
if (speed*3.6<0.1) {
return;
}
if (millis()-last_flash>flashdeadtime) { //deadtime
last_flash=millis();
if (speed*3.6 >= flashspeed) {
Serial.print("> Speed="); Serial.print(speed*3.6); Serial.println(" km/h");
Serial.println("Flash");
pinMode(PIN_TRIGGER, INPUT); //high impedance
delay(100);
pinMode(PIN_TRIGGER, OUTPUT); digitalWrite(PIN_TRIGGER, LOW);
}
}
}
ICACHE_RAM_ATTR void interrupt_sw1() {
if (sw1_lastTime+SWDEBOUNCE<micros()){
sw1_flag=true; sw1_flag=true;
} }
} }
void interrupt_sw2() { ICACHE_RAM_ATTR void interrupt_sw2() {
if (sw2_lastTime+SWDEBOUNCE<millis()){ if (sw2_lastTime+SWDEBOUNCE<micros()){
sw2_flag=true; sw2_flag=true;
} }
} }
float getLastSpeed() { float getLastSpeed1() {
return calib_distance/((sw2_lastTime-sw1_lastTime)/1000.0); return calib_distance/((sw1_lastTime-sw2_lastTime)/1000000.0);
}
float getLastSpeed2() {
return calib_distance/((sw2_lastTime-sw1_lastTime)/1000000.0);
} }