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interfisch merged 2 commits from henne/blitzer:master into master 2022-07-25 11:15:33 +00:00
Conversation 0 Commits 2 Files Changed 14 +370 -119
10 changed files with 370 additions and 119 deletions
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2
.gitignore vendored
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.clang_complete
.gcc-flags.json
.pio
.DS_Store

5
blitzercontroller/platformio.ini
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platform = espressif8266
board = d1_mini
framework = arduino
monitor_speed = 115200
monitor_speed = 115200
lib_deps = me-no-dev/ESP Async WebServer@^1.2.3

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blitzercontroller/src/index.html Normal file
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<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Blitzer</title>
<style type="text/css">
body, html {
padding: 0;
margin: 10px 20px;
font-family: sans-serif;
}
.btn {
width: 100%;
height: 70px;
background-color: red;
color: white;
}
</style>
</head>
<body>
<h1>Blitzercontrol</h1>
<h2>Highscore</h2>
<span id="highscore">23km/h</span>
<h2>Letzte Messungen</h2>
<ul id="lastSpeeds">
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
<h2>Manuelle Steuerung</h2>
<button class="btn" onclick="flash()">Flash</button>
<h2>Speed setting</h2>
<input id="threshold" type="text" /> km/h<br />
<button onclick="setSpeed()">Set Speed</button>
<script type="text/javascript">
const highscoreElem = document.getElementById("highscore");
const lastSpeeds = document.getElementById("lastSpeeds");
const thresholdFieldElem = document.getElementById("threshold");
function flash() {
fetch('/flash').then(() => {});
}
function setSpeed() {
console.log('/set?speed=' + thresholdFieldElem.value);
fetch('/set?speed=' + thresholdFieldElem.value);
}
function getData() {
fetch('/data.json')
.then(response => response.json())
.then(data => {
highscoreElem.innerText = data.highscore + ' km/h';
let c = lastSpeeds.children;
for(let i=0; i<data.lastSpeeds.length; i++) {
c[i].innerText = data.lastSpeeds[i] + ' km/h';
}
});
}
window.setInterval(getData, 1000)
getData();
</script>
</body>
</html>

120
blitzercontroller/src/main.cpp
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#include <Arduino.h>
float flashspeed=20; //in kmh
unsigned long flashdeadtime=1000; //in ms
#define PIN_SW1 D6
#define PIN_SW2 D5
#define PIN_TRIGGER D7
volatile boolean sw1_flag = false;
volatile boolean sw2_flag = false;
unsigned long sw1_lastTime=0;
unsigned long sw2_lastTime=0;
float calib_distance=0.062; //distance of sensors in meters
#define SWDEBOUNCE 100000
ICACHE_RAM_ATTR void interrupt_sw1();
ICACHE_RAM_ATTR void interrupt_sw2();
float getLastSpeed1();
float getLastSpeed2();
void doTrigger1();
void doTrigger2();
#include <main.h>
void setup() {
pinMode(PIN_SW1, INPUT_PULLUP);
pinMode(PIN_SW2, INPUT_PULLUP);
pinMode(PIN_TRIGGER, OUTPUT);
attachInterrupt(digitalPinToInterrupt(PIN_SW1), interrupt_sw1, FALLING);
attachInterrupt(digitalPinToInterrupt(PIN_SW2), interrupt_sw2, FALLING);
digitalWrite(PIN_TRIGGER, HIGH); //active low
handleSetup();
Serial.begin(115200);
beginWiFi();
}
void loop() {
if (sw1_flag){
sw1_flag=false;
sw1_lastTime=micros();
Serial.println("SW1");
doTrigger1();
}
if (sw2_flag){
sw2_flag=false;
sw2_lastTime=micros();
Serial.println("SW2");
doTrigger2();
}
}
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;
}
}
ICACHE_RAM_ATTR void interrupt_sw2() {
if (sw2_lastTime+SWDEBOUNCE<micros()){
sw2_flag=true;
}
}
float getLastSpeed1() {
return calib_distance/((sw1_lastTime-sw2_lastTime)/1000000.0);
}
float getLastSpeed2() {
return calib_distance/((sw2_lastTime-sw1_lastTime)/1000000.0);
}
handleLoop();
}

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blitzercontroller/src/main.h Normal file
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#ifndef main_h
#define main_h
#include <Arduino.h>
#include <speed.h>
#include <webserver.h>
#endif

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blitzercontroller/src/site.h Normal file
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#include <ESPAsyncWebServer.h>
const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Blitzer</title>
<style type="text/css">
body, html {
padding: 0;
margin: 10px 20px;
font-family: sans-serif;
}
.btn {
width: 100%;
height: 70px;
background-color: red;
color: white;
}
</style>
</head>
<body>
<h1>Blitzercontrol</h1>
<h2>Highscore</h2>
<span id="highscore">23km/h</span>
<h2>Letzte Messungen</h2>
<ul id="lastSpeeds">
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
<h2>Manuelle Steuerung</h2>
<button class="btn" onclick="flash()">Flash</button>
<h2>Speed setting</h2>
<input id="threshold" type="text" /> km/h<br />
<button onclick="setSpeed()">Set Speed</button>
<script type="text/javascript">
const highscoreElem = document.getElementById("highscore");
const lastSpeeds = document.getElementById("lastSpeeds");
const thresholdFieldElem = document.getElementById("threshold");
function flash() {
fetch('/flash').then(() => {});
}
function setSpeed() {
console.log('/set?speed=' + thresholdFieldElem.value);
fetch('/set?speed=' + thresholdFieldElem.value);
}
function getData() {
fetch('/data.json')
.then(response => response.json())
.then(data => {
highscoreElem.innerText = data.highscore + ' km/h';
let c = lastSpeeds.children;
for(let i=0; i<data.lastSpeeds.length; i++) {
c[i].innerText = data.lastSpeeds[i] + ' km/h';
}
});
}
window.setInterval(getData, 1000)
getData();
</script>
</body>
</html>
)rawliteral";

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blitzercontroller/src/speed.cpp Normal file
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#include <speed.h>
#define PIN_SW1 D6
#define PIN_SW2 D5
#define PIN_TRIGGER D7
volatile boolean sw1_flag = false;
volatile boolean sw2_flag = false;
unsigned long sw1_lastTime = 0;
unsigned long sw2_lastTime = 0;
float flashspeed = 20; // in kmh
unsigned long flashdeadtime = 1000; // in ms
float calib_distance = 0.062; // distance of sensors in meters
float lastMeasuredSpeeds[10];
float highscore = 0;
unsigned long last_flash = 0;
#define SWDEBOUNCE 100000
ICACHE_RAM_ATTR void interrupt_sw1();
ICACHE_RAM_ATTR void interrupt_sw2();
float getLastSpeed1();
float getLastSpeed2();
void handleSetup()
{
pinMode(PIN_SW1, INPUT_PULLUP);
pinMode(PIN_SW2, INPUT_PULLUP);
pinMode(PIN_TRIGGER, OUTPUT);
attachInterrupt(digitalPinToInterrupt(PIN_SW1), interrupt_sw1, FALLING);
attachInterrupt(digitalPinToInterrupt(PIN_SW2), interrupt_sw2, FALLING);
digitalWrite(PIN_TRIGGER, HIGH); // active low
}
void handleLoop()
{
// reset micros within the first half second to care for overflowing micros
if (micros() < 500000) {
sw1_flag = false;
sw1_lastTime = 0;
sw2_flag = false;
sw2_lastTime = 0;
}
if (millis() < 500) {
last_flash = 0;
}
if (sw1_flag)
{
sw1_flag = false;
sw1_lastTime = micros();
Serial.println("SW1");
doTrigger(getLastSpeed1());
}
if (sw2_flag)
{
sw2_flag = false;
sw2_lastTime = micros();
Serial.println("SW2");
doTrigger(getLastSpeed2());
}
}
void doTrigger(float speed)
{
if (speed < 0.1)
{
return;
}
if (millis() - last_flash > flashdeadtime)
{ // deadtime
last_flash = millis();
if (speed >= flashspeed)
{
addLastSpeed(speed);
Serial.print("> Speed=");
Serial.print(speed);
Serial.println(" km/h");
flash();
}
}
}
void flash() {
Serial.println("Flash");
pinMode(PIN_TRIGGER, INPUT); // high impedance
delay(100);
pinMode(PIN_TRIGGER, OUTPUT);
digitalWrite(PIN_TRIGGER, LOW);
}
void addLastSpeed(float speed)
{
for (int i = 0; i < 9; i++)
{
lastMeasuredSpeeds[i] = lastMeasuredSpeeds[i + 1];
}
lastMeasuredSpeeds[9] = speed;
if (highscore < speed) {
highscore = speed;
}
}
ICACHE_RAM_ATTR void interrupt_sw1()
{
if (sw1_lastTime + SWDEBOUNCE < micros())
{
sw1_flag = true;
}
}
ICACHE_RAM_ATTR void interrupt_sw2()
{
if (sw2_lastTime + SWDEBOUNCE < micros())
{
sw2_flag = true;
}
}
float getLastSpeed1()
{
return calib_distance / ((sw1_lastTime - sw2_lastTime) / 1000000.0) * 3.6;
}
float getLastSpeed2()
{
return calib_distance / ((sw2_lastTime - sw1_lastTime) / 1000000.0) * 3.6;
}

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blitzercontroller/src/speed.h Normal file
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#ifndef speed_h
#define speed_h
#include <Arduino.h>
extern float flashspeed;
extern float highscore;
extern unsigned long flashdeadtime;
extern float calib_distance;
extern float lastMeasuredSpeeds[10];
void flash();
void handleLoop();
void handleSetup();
void doTrigger(float speed);
void addLastSpeed(float speed);
#endif

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blitzercontroller/src/webserver.cpp Normal file
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#include <webserver.h>
AsyncWebServer server(80);
void beginWiFi() {
WiFi.setHostname("chaoswestbliz");
WiFi.begin("MCH2022-open", "");
while(WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [] (AsyncWebServerRequest *request) {
request->send(200, "text/html", index_html);
});
server.on("/set", HTTP_GET, [] (AsyncWebServerRequest *request) {
String s;
String message;
if (request->hasParam("speed")) {
s = request->getParam("speed")->value();
flashspeed = s.toFloat();
message = "Speed set successfully";
} else {
message = "No message sent";
}
Serial.print("Speed set to ");
Serial.print(s);
Serial.println("km/h");
request->send(200, "text/plain", "OK");
});
server.on("/flash", HTTP_GET, [] (AsyncWebServerRequest *request) {
flash();
request->send(200, "text/plain", "OK");
});
server.on("/data.json", HTTP_GET, [] (AsyncWebServerRequest *request) {
String response = "{\"highscore\":";
response.concat(highscore);
response.concat(",\"lastSpeeds\": [");
for(int i=0;i<10;i++) {
response.concat(lastMeasuredSpeeds[i]);
if(i<9) {
response.concat(", ");
}
}
response.concat("]}");
request->send(200, "application/json", response);
});
server.begin();
}

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blitzercontroller/src/webserver.h Normal file
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#ifndef webserver_h
#define webserver_h
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESPAsyncWebServer.h>
#include <speed.h>
#include <site.h>
void beginWiFi();
#endif