#include
#include "Logger.h"
// min macro for ESP
#define espmin(X, Y) (((X)<(Y))?(X):(Y))
// WiFi connection
const char* ssid = "SSID";
const char* password = "PASSWORD";
char server[] = "SERVERIP";
int port = 80;
WiFiClient client;
const unsigned long postingInterval = 1800L * 1000000L; // delay between updates, in microseconds
//DHT
#include
#define DHTPIN 4
#define DHTTYPE DHT11 // DHT 11
DHT dht(DHTPIN, DHTTYPE,16);
// needed to avoid link error on ram check
extern "C"
{
#include "user_interface.h"
}
void setup() {
value_type values[3];
// start serial
pinMode(12, OUTPUT);
pinMode(A0, INPUT);
dht.begin();
Serial.begin(115200);
Serial.println("WLAN Greenhouse Data Logger - Electric Playground");
// First measuring
values[0]= domeasuring();
delay(1000);
// Second measuring
values[1]= domeasuring();
delay(1000);
// Third measuring
values[2]= domeasuring();
// Finding the middle value
float temp;
float hum;
float minmin = espmin(espmin(values[0].temp, values[1].temp), values[2].temp);
if (values[0].temp = minmin)
{
temp=espmin(values[1].temp, values[2].temp);
hum=espmin(values[1].hum, values[2].hum);
}
else if (values[1].temp = minmin)
{
temp=espmin(values[0].temp, values[2].temp);
hum=espmin(values[0].hum, values[2].hum);
}
else
{
temp=espmin(values[0].temp, values[1].temp);
hum=espmin(values[0].hum, values[1].hum);
}
float soil=(values[0].soil+values[1].soil+values[1].soil)/3.0;
// send data
// Connect to WIFI
WiFi.mode(WIFI_STA);
WiFiStart();
// debug
while (client.available()) {
char c = client.read();
Serial.write(c);
}
Serial.println("Humidity:"+String(hum,2)+"\tTemperature:"+String(temp,2)+"\tSoil:"+String(soil,2));
httpRequest(hum,temp,soil);
Serial.println("Good Night");
ESP.deepSleep(postingInterval, WAKE_NO_RFCAL); //WAKE_DEFAULT, WAKE_RFCAL, WAKE_NO_RFCAL, WAKE_RF_DISABLED.
delay(1000);
}
void loop() {
// do nothing
}
// Measueing
value_type domeasuring() {
digitalWrite(12, HIGH);
delay(300);
value_type retval;
retval.hum = dht.readHumidity();
if (isnan(retval.hum))
retval.hum=999;
retval.temp = dht.readTemperature();
if (isnan(retval.temp))
retval.temp=999;
retval.soil = analogRead(A0);
digitalWrite(12, LOW);
Serial.println("Humidity:"+String(retval.hum,2)+"\tTemperature:"+String(retval.temp,2)+"\tSoil:"+String(retval.soil,2));
return retval;
}
void httpRequest(float h, float t, float s) {
// close any connection before send a new request.
// This will free the socket on the WiFi shield
client.stop();
delay(100);
// We now create a URI for the request
String url = "/newrecord.php?";
url += "temp=";
url += String(t,2);
url += "&humidity=";
url += String(h,2);
url += "&soil=";
url += String(s,2);
// if there's a successful connection:
if (client.connect(server, port)) {
Serial.println("connecting...");
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + server + "\r\n" +
"Connection: close\r\n\r\n");
Serial.println("data submitted.");
delay(10);
} else {
// if you couldn't make a connection:
Serial.println("connection failed");
}
}
void WiFiStart()
{
// Connect to WiFi network
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(250);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
// Print the IP address
Serial.println(WiFi.localIP());
}
