Am2301+eeprom

[feri]

برنامه ماژول دما و رطوبت am2301 و eeprom , Millis است
دما و رطوبت داخل eeprom ذخیره میشه , max دما و رطوبت مشخص میکنه و همچنین در بازه زمانی مورد نظر(مثلا 5 دقیقه)
کد به صورت زیر است

// Example testing sketch for various DHT humidity/temperature sensors
// Written by ladyada, public domain

#include "DHT.h"
#include <EEPROM.h>
#include <elapsedMillis.h>
elapsedMillis timeElapsed;
unsigned int interval = 10;
int address = 0;
int address1 = 1;

byte value;

#define DHTPIN 3 // what pin we're connected to

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11 // DHT 11
#define DHTTYPE DHT22 // DHT 22 (AM2302)
//#define DHTTYPE DHT21 // DHT 21 (AM2301)

// Connect pin 1 (on the left) of the sensor to +5V
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

DHT dht(DHTPIN, DHTTYPE);

void setup() {
Serial.begin(9600);
Serial.println("DHTxx test!");
dht.begin();
EEPROM.write(address,0);
EEPROM.write(address1,0);
while (!Serial) {
}
}

void loop() {
// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
int h = dht.readHumidity();
int t = dht.readTemperature();

// check if returns are valid, if they are NaN (not a number) then something went wrong!
if (isnan(t) || isnan(h)) {
Serial.println("Failed to read from DHT");
} else {
Serial.print("Humidity: ");
Serial.print(h);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.println(" *C");
int x=EEPROM.read(address);
if (h>x)
{
EEPROM.write(address,h);
}

int y=EEPROM.read(address1);

if (t>y)
{
EEPROM.write(address1,t);
}
Serial.print("tem: ");
Serial.println(y);
Serial.print("hu: ");
Serial.println(x);
if (timeElapsed > interval)
{
timeElapsed = 0; // reset the counter to 0 so the counting starts over...
}



}
}