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code.ino
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code.ino
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/**
* ESP8266 PLANT BEST FRIEND
* -------------------------
* IoT Hardware & Software
*
* by Krzysztof Krystian Jankowski // P1X
* https://p1x.in / https://krzysztofjankowski.com
*/
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <FS.h>
#include <DHT.h>
const char* ssid = "P1X_2.4GHz";
const char* password = "dawajneta";
#define SOILPIN 0
#define SOILMIN 250
#define SOILMAX 600
#define DHTPIN 2
#define DHTTYPE DHT11
#define DHTTWEAK 15
#define WEBPORT 80
float sens_temp = 0.0;
float sens_humi = 0.0;
float sens_mois = 0.0;
long rssi = 0;
String getContentType(String filename);
bool handleFileRead(String path);
void updateSensorsReadings();
void updateRSSI();
DHT dht(DHTPIN, DHTTYPE, DHTTWEAK);
ESP8266WebServer server(WEBPORT);
void setup(void){
Serial.begin(115200);
Serial.println('\n');
delay(1000);
Serial.println("----------------------------------------");
Serial.println(" STRAIGHT FROM THE POT... ");
Serial.println(" < PLANT BEST FRIEND > ");
Serial.println("----------------------------------------");
delay(1000);
Serial.println('\n');
Serial.print("> Connecting to WiFi [");
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print("*");
}
Serial.print("]\n");
Serial.println("> WiFi connection Successful");
Serial.println("----------------------------------------");
Serial.print("> The IP Address: ");
Serial.println(WiFi.localIP());
Serial.println("----------------------------------------");
SPIFFS.begin();
server.onNotFound([]() {
if (!handleFileRead(server.uri()))
server.send(404, "text/plain", "404: Not Found");
});
server.begin();
server.on("/temp", []() {
server.send(200, "text/plain", String(sens_temp, DEC));
});
server.on("/humi", []() {
server.send(200, "text/plain", String(sens_humi, DEC));
});
server.on("/mois", []() {
server.send(200, "text/plain", String(sens_mois, DEC));
});
server.on("/rssi", []() {
updateRSSI();
server.send(200, "text/plain", String(rssi, DEC));
});
server.on("/update", []() {
updateSensorsReadings();
server.send(200, "text/plain", "OK");
});
Serial.println("> HTTP server started");
Serial.println("----------------------------------------");
Serial.println("> Updating sensor readings...");
updateSensorsReadings();
Serial.println("----------------------------------------");
}
void loop(void){
server.handleClient();
}
String getContentType(String filename) {
if (filename.endsWith(".html")) return "text/html";
else if (filename.endsWith(".css")) return "text/css";
else if (filename.endsWith(".js")) return "application/javascript";
else if (filename.endsWith(".gif")) return "image/gif";
else if (filename.endsWith(".svg")) return "image/svg+xml ";
return "text/plain";
}
bool handleFileRead(String path) {
Serial.println("\t-> Serving file: " + path);
if (path.endsWith("/")) path += "index.html";
String contentType = getContentType(path);
String indexData;
if (SPIFFS.exists(path)) {
File file = SPIFFS.open(path, "r");
size_t sent = server.streamFile(file, contentType);
file.close();
return true;
}
Serial.println("\t-> File Not Found");
return false;
}
void updateSensorsReadings() {
sens_temp = dht.readTemperature();
delay(100);
sens_humi = dht.readHumidity();
delay(100);
sens_mois = 100 - map(analogRead(SOILPIN), SOILMIN, SOILMAX, 0, 100);
Serial.println("> Sensors reading: ");
Serial.println("\t-> Temperature: " + String(sens_temp, DEC) + "°C");
Serial.println("\t-> Humidity: " + String(sens_humi, DEC) + "%");
Serial.println("\t-> Moisture: " + String(sens_mois, DEC) + "%");
}
void updateRSSI() {
rssi = WiFi.RSSI();
Serial.print("> Signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}