Kod: Markera allt
#include <ESP8266WiFi.h>
#include <OneWire.h>
#include <DallasTemperature.h>
const char* ssid = "DITT WIFI NAMN HIT";
const char* password = "DITT WIFI LÖSENORD HIT";
// Data wire is plugged into pin D3 on the ESP8266 12-E - GPIO 0
#define ONE_WIRE_BUS 0
// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature.
DallasTemperature DS18B20(&oneWire);
char temperatureCString[7];
// Create an instance of the server
// specify the port to listen on as an argument
WiFiServer server(8020);
// only runs once on boot
void setup() {
// Initializing serial port for debugging purposes
Serial.begin(115200);
delay(10);
DS18B20.begin(); // IC Default 9 bit. If you have troubles consider upping it 12. Ups the delay giving the IC more time to process the temperature measurement
// Connect to WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
// Starting the web server
server.begin();
Serial.println("Web server running. Waiting for the ESP IP...");
delay(10000);
// Print the IP address
Serial.println(WiFi.localIP());
}
void getTemperature() {
float tempC;
do {
DS18B20.requestTemperatures();
tempC = DS18B20.getTempCByIndex(0);
dtostrf(tempC, 2, 2, temperatureCString);
delay(100);
} while (tempC == 85.0 || tempC == (-127.0));
}
// runs over and over again
void loop() {
// Listenning for new clients
WiFiClient client = server.available();
if (client) {
Serial.println("New client");
// bolean to locate when the http request ends
boolean blank_line = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
if (c == '\n' && blank_line) {
getTemperature();
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println();
// your actual web page that displays temperature
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<head></head><body><h1>");
client.println(temperatureCString);
client.println("</body></html>");
break;
}
if (c == '\n') {
// when starts reading a new line
blank_line = true;
}
else if (c != '\r') {
// when finds a character on the current line
blank_line = false;
}
}
}
// closing the client connection
delay(1);
client.stop();
Serial.println("Client disconnected.");
}
}