BKRheine
/
ET-Project-SmartSensor
4
0
Fork 0
Code Issues Pull Requests Packages Projects 1 Releases Wiki Activity

Added webserver

This commit is contained in:
Ipmake 2024-03-20 10:32:42 +01:00
parent 3d1e6f67a2
commit 5af6ffafca
3 changed files with 179 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

0
.gitattributes vendored Normal file → Executable file
View File

7
platformio.ini
View File

@ -8,6 +8,9 @@
; Please visit documentation for the other options and examples ; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html ; https://docs.platformio.org/page/projectconf.html
[env]
monitor_speed = 115200
[env:denky32] [env:denky32]
platform = espressif32 platform = espressif32
board = denky32 board = denky32
@ -16,3 +19,7 @@ lib_deps =
adafruit/Adafruit Unified Sensor@^1.1.14 adafruit/Adafruit Unified Sensor@^1.1.14
adafruit/DHT sensor library@^1.4.6 adafruit/DHT sensor library@^1.4.6
marcoschwartz/LiquidCrystal_I2C@^1.1.4 marcoschwartz/LiquidCrystal_I2C@^1.1.4
esphome/ESPAsyncWebServer-esphome@^3.1.0
[env:env1]
lib_deps = esphome/ESPAsyncWebServer-esphome@^3.1.0

177
src/main.cpp
View File

@ -1,6 +1,8 @@
#include "ESPAsyncWebServer.h"
#include <Arduino.h> #include <Arduino.h>
#include <DHT.h> #include <DHT.h>
#include <LiquidCrystal_I2C.h> #include <LiquidCrystal_I2C.h>
#include "WiFi.h"
const int DHT_PIN = 4; const int DHT_PIN = 4;
const int PIEZO_PIN = 17; const int PIEZO_PIN = 17;
@ -11,12 +13,126 @@ const int LEDRED_PIN = 26;
const int LEDWH_PIN = 13; const int LEDWH_PIN = 13;
const char* ssid ="";
const char* password="";
AsyncWebServer server(80);
int prevRating = -1; int prevRating = -1;
DHT dht(DHT_PIN, DHT11); DHT dht(DHT_PIN, DHT11);
String readDHTTemperature() {
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
// Read temperature as Celsius (the default)
float t = dht.readTemperature();
// Read temperature as Fahrenheit (isFahrenheit = true)
//float t = dht.readTemperature(true);
// Check if any reads failed and exit early (to try again).
if (isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return "--";
}
else {
Serial.println(t);
return String(t);
}
}
String readDHTHumidity() {
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
float h = dht.readHumidity();
if (isnan(h)) {
Serial.println("Failed to read from DHT sensor!");
return "--";
}
else {
Serial.println(h);
return String(h);
}
}
const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE HTML><html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
<style>
html {
font-family: Arial;
display: inline-block;
margin: 0px auto;
text-align: center;
}
h2 { font-size: 3.0rem; }
p { font-size: 3.0rem; }
.units { font-size: 1.2rem; }
.dht-labels{
font-size: 1.5rem;
vertical-align:middle;
padding-bottom: 15px;
}
</style>
</head>
<body>
<h2>ESP32 DHT</h2>
<p>
<i class="fas fa-thermometer-half" style="color:#059e8a;"></i>
<span class="dht-labels">Temperature</span>
<span id="temperature">%TEMPERATURE%</span>
<sup class="units">&deg;C</sup>
</p>
<p>
<i class="fas fa-tint" style="color:#00add6;"></i>
<span class="dht-labels">Feuchtigkeit</span>
<span id="humidity">%HUMIDITY%</span>
<sup class="uHumiditynits">&percnt;</sup>
</p>
</body>
<script>
setInterval(function ( ) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("temperature").innerHTML = this.responseText;
}
};
xhttp.open("GET", "/temperature", true);
xhttp.send();
}, 2000 ) ;
setInterval(function ( ) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("humidity").innerHTML = this.responseText;
}
};
xhttp.open("GET", "/humidity", true);
xhttp.send();
}, 2000 ) ;
</script>
</html>)rawliteral";
// Replaces placeholder with DHT values
String processor(const String& var){
//Serial.println(var);
if(var == "TEMPERATURE"){
return readDHTTemperature();
}
else if(var == "HUMIDITY"){
return readDHTHumidity();
}
return String();
}
LiquidCrystal_I2C lcd(0x27, 16, 5); LiquidCrystal_I2C lcd(0x27, 16, 5);
float temp;
float humid;
void playWarnTone() void playWarnTone()
{ {
tone(PIEZO_PIN, 2000); tone(PIEZO_PIN, 2000);
@ -35,15 +151,31 @@ void OFFLEDS()
digitalWrite(LEDRED_PIN, HIGH); digitalWrite(LEDRED_PIN, HIGH);
} }
void UpdateLCD()
{
lcd.clear();
lcd.setContrast(16);
Serial.println("Updating LCD");
lcd.setCursor(0, 0);
lcd.print("Temp: " + (String)temp);
lcd.setCursor(0, 1);
lcd.print("Humid: " + (String)humid);
}
void setup() void setup()
{ {
Serial.begin(9600); Serial.begin(115200);
dht.begin(); dht.begin();
lcd.init(); lcd.init();
lcd.backlight(); lcd.backlight();
lcd.print("Hello"); lcd.noAutoscroll();
lcd.print("Welcome!");
lcd.setCursor(0, 1);
lcd.print("www.ipmake.dev");
pinMode(PIEZO_PIN, OUTPUT); pinMode(PIEZO_PIN, OUTPUT);
@ -60,13 +192,45 @@ void setup()
tone(PIEZO_PIN, 2000); tone(PIEZO_PIN, 2000);
delay(250); delay(250);
noTone(PIEZO_PIN); noTone(PIEZO_PIN);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi..");
}
// Print ESP32 Local IP Address
Serial.println(WiFi.localIP());
// Route for root / web page
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/html", index_html, processor);
});
server.on("/temperature", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/plain", readDHTTemperature().c_str());
});
server.on("/humidity", HTTP_GET, [](AsyncWebServerRequest *request){
request->send_P(200, "text/plain", readDHTHumidity().c_str());
});
// Start server
server.begin();
// // Initialize the timer
// hw_timer_t *timer = timerBegin(1, 80, true); // Timer ID 1, prescaler 80 (1MHz clock)
// // Set the timer interval
// timerAlarmWrite(timer, 10000, true);
// // Attach the function to the timer
// timerAttachInterrupt(timer, &UpdateLCD, true);
// // Start the timer
// timerAlarmEnable(timer);
} }
void loop() void loop()
{ {
float temp = dht.readTemperature(); temp = dht.readTemperature();
float humid = dht.readHumidity(); humid = dht.readHumidity();
delay(100); delay(1000);
int rating = 0; int rating = 0;
@ -103,6 +267,7 @@ void loop()
} }
// Serial.println("Temp: " + (String)temp + " Humid: " + (String)humid + " Rating: " + (String)rating); // Serial.println("Temp: " + (String)temp + " Humid: " + (String)humid + " Rating: " + (String)rating);
prevRating = rating; prevRating = rating;
UpdateLCD();
} }