Data logger Temp en vocht en 2 analoge spannings ingangen van 0 - 25 v

Wat word er gelogd ! 2 Analoge ingangen, Temp Vocht , Dit word weggeschreven op SD kaart en het systeem is ook voorzien van een real time clock, met knoppen kan men selecteren enke seconde elke minuut of elk uur data opslaan op SD kaart

Data logger components

DHT22 sensor voor temp en vocht

2 maal spanningsdeler 0-25v

RTC 1302 clock module

LCD display

SD card module

De Code van de Data logger

/*

Pin Digital 2 -> Pin CE - RST modulo RTC

Pin Digital 3 -> Pin I/O - DAT modulo RTC

Pin Digital 4 -> Pin CLCK - CLK modulo RTC

Pin Analogic A4 -> Pin SDA display

Pin Analogic A5 -> Pin SCL display

*/

#include <DS1302.h> // real time module

#include <Wire.h> //i2c

#include <LiquidCrystal_I2C.h> //lcd display

#include <SPI.h> // voor sd kaart

#include <SD.h> // voor sd kaart

#include "DHT.h" // temp sensor

#define DHTPIN 9 // aansluiting voor temp sensor

#define DHTTYPE DHT22 // temp sensor

DHT dht(DHTPIN, DHTTYPE); // Temp vocht sensor bepalen

int CS_PIN = 10; // cs pin van sd kaart, enige aansluiting die veranderd kan worden

int elkeseconde = 5; // ingangen voor selectie van data logging

int elkeminuut = 6;

int elkuur = 7;

//merker definieren

int merkerelkeseconde = 0;

int merkerelkeminuut = 0;

int merkerelkuur = 0;

const int chipSelect = 4; //aansturing sd kaart

// aansluitingen rtc

DS1302 rtc(2, 3, 4); // io voor RTC module

// adres van display

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

//analoge spannings ingang 1

const int voltageSensorPin = A3; // sensor pin

float vIn; // measured voltage (3.3V = max. 16.5V, 5V = max 25V)

float vOut;

float voltageSensorVal; // value on pin A3 (0 - 1023)

const float factor = 5.00; // reduction factor of the Voltage Sensor shield

const float vCC = 4.67; // Arduino input voltage (measurable by voltmeter)

//ingang 2

const int voltageSensorPin2 = A2; // sensor pin

float vIn2; // measured voltage (3.3V = max. 16.5V, 5V = max 25V)

float vOut2;

float voltageSensorVal2; // value on pin A2 (0 - 1023)

const float factor2 = 5.000; // reduction factor of the Voltage Sensor shield

const float vCC2 = 4.67; // Arduino input voltage (measurable by voltmeter)

Time t; // real time klok definieren in t

void setup()

{

rtc.halt(false);

rtc.writeProtect(false);

Serial.begin(9600);

// indien klok moet ingesteld worden onderste lijnen juist instellen

// rtc.setDOW(FRIDAY); // Set Day-of-Week to FRIDAY

// rtc.setTime(12, 0, 0); // Set the time to 12:00:00 (24hr format)

// rtc.setDate(6, 8, 2010); // Set the date to August 6th, 2010

//Pin definities

pinMode(CS_PIN, OUTPUT);

pinMode(elkeseconde, INPUT);

pinMode (elkeminuut, INPUT);

pinMode (elkuur, INPUT);

// while (!Serial) {

// ; // wait for serial port to connect. Needed for native USB port only

// }

Serial.print("Initializing SD card...");

// see if the card is present and can be initialized:

if (!SD.begin(chipSelect)) {

Serial.println("Card failed, or not present");

lcd.begin(16, 2); // initialize the lcd

lcd.home (); // go home

lcd.print("Geen SD kaart ");

delay(1000);

// don't do anything more:

while (1);

}

Serial.println("card initialized.");

lcd.begin(16, 2); // initialize the lcd

lcd.clear();

// lcd.home (); // go home

// lcd.setCursor ( 0, 0 ); // go to the next line

lcd.print("SD kaart ");

// lcd.setCursor ( 0, 1 ); // go to the next line

lcd.print("herkend ");

delay(1000);

lcd.begin(16, 2); // initialize the lcd

// lcd.home (); // go home

lcd.setCursor ( 0, 0 ); // go to the next line

lcd.print("Data logger");

lcd.setCursor ( 0, 1 ); // go to the next line

lcd.print (" C2020 Spike ");

delay(1000);

lcd.clear();

dht.begin(); // initialize the sensor

}

void loop()

{

// read humidity

float humi = dht.readHumidity(); // read temperature as Celsius

float tempC = dht.readTemperature(); //float tempF = dht.readTemperature(true);

// check if any reads failed

if (isnan(humi) || isnan(tempC) ) {

Serial.println("Geen data van Temp sensor");

} else {

// Serial.print("Humidity: ");

Serial.print(humi);

Serial.print("%");

Serial.print(" , ");

// Serial.print("Temperature: ");

Serial.print(tempC);

Serial.println("�C ");

}

// Get data from the DS1302

t = rtc.getTime();

// Serial.print(rtc.getDOWStr()); // Dag

//Serial.print(" ");

Serial.print(rtc.getDateStr()); //Datum

Serial.print(" -- ");

Serial.println(rtc.getTimeStr()); //tijd

//Serial.println(t.hour, DEC);

//Serial.println(t.min, DEC);

//Serial.print(t.sec, DEC);

merkerelkeseconde = digitalRead (elkeseconde);

merkerelkeminuut = digitalRead (elkeminuut);

merkerelkuur = digitalRead (elkuur);

//ingang 1

voltageSensorVal = analogRead(voltageSensorPin); // read the current sensor value (0 - 1023)

vOut = (voltageSensorVal / 1024) * vCC; // convert the value to the real voltage on the analog pin

vIn = vOut * factor; // convert the voltage on the source by multiplying with the factor

Serial.print(" U1 = ");

Serial.print(vIn);

// Serial.print("V");

//ingang2

voltageSensorVal2 = analogRead(voltageSensorPin2); // read the current sensor value (0 - 1023)

vOut2 = (voltageSensorVal2 / 1024) * vCC2; // convert the value to the real voltage on the analog pin

vIn2 = vOut2 * factor2; // convert the voltage on the source by multiplying with the factor

Serial.print(" U2 = ");

Serial.println(vIn2);

// Serial.println("V");

lcd.setCursor(0, 0);

lcd.print(humi);

lcd.print(" % ");

lcd.print(tempC);

lcd.print("C ");

lcd.setCursor(0, 1);

lcd.print("V1=");

lcd.print(vIn);

lcd.println(" V");

lcd.setCursor(8, 1);

lcd.print("V2=");

lcd.print(vIn2);

lcd.println(" V");

if (merkerelkeseconde == HIGH){

Serial.println("Data logging elke seconde actief");

lcd.setCursor ( 15, 0 ); // go to the next line

lcd.print("S");

}

if (merkerelkeminuut == HIGH){

Serial.println("Data logging elke minuut actief");

lcd.setCursor ( 15, 0 );

lcd.print("M");

}

if (merkerelkuur == HIGH){

Serial.println("Data logging elk uur actief");

lcd.setCursor ( 15, 0); // go to the next line

lcd.print("H");

}

delay (800);

//logging elke seconde

if (merkerelkeseconde == HIGH) {

dataopslaan(); // Data routine om data op sd kaart op te slaan oproepen

}

//logging elke minuut

if ((merkerelkeminuut == HIGH) and (t.sec==0)) {

dataopslaan(); // Data routine om data op sd kaart op te slaan oproepen

}

//logging elk uur

if ((merkerelkeminuut == HIGH) and (t.min==0)) {

dataopslaan(); // Data routine om data op sd kaart op te slaan oproepen

}

void dataopslaan() {

//sd kaart

// open the file. note that only one file can be open at a time,

// so you have to close this one before opening another.

File dataFile = SD.open("datalog.txt", FILE_WRITE);

// if the file is available, write to it:

if (dataFile) {

// dataFile.println(dataString);

dataFile.print(rtc.getDateStr());

dataFile.print(", "); // comma's om cellen later te delen in excel

// dataFile.print(rtc.getDOWStr());

// dataFile.print(", ");

dataFile.print(rtc.getTimeStr());

dataFile.print(", ");

dataFile.print(",ingang 1 =, "); //analoge ingangen

dataFile.print(vIn);

dataFile.print(", ");

dataFile.print(",ingang 2 =, ");

dataFile.print(vIn2);

dataFile.println(", ");

// read humidity

float humi = dht.readHumidity();

float tempC = dht.readTemperature();

dataFile.print(humi);

dataFile.print(",%,");

dataFile.print(tempC);

dataFile.print(",�C,");

dataFile.close();

}

lcd.setCursor(0, 0);

lcd.println("Data Logging ");

/*DISPLAY

float humi = dht.readHumidity();

// read temperature as Celsius

float tempC = dht.readTemperature();

lcd.setCursor(0, 0);

lcd.print(humi);

lcd.print("% ");

lcd.print(tempC);

lcd.print("C");

lcd.setCursor(0, 1);

lcd.print("V1=");

lcd.print(vIn);

lcd.println(" V");

lcd.setCursor(8, 1);

lcd.print("V2=");

lcd.print(vIn2);

lcd.println(" V");

*/

delay (200);

}