EoDC teaching program

Programming BoSL

This page is for the EoDC training course at Bayswater Secondary College.

Please use the code before for the in-class activity.

 #include <OneWire.h>
 #include <DallasTemperature.h>
 #include <LiquidCrystal_I2C.h>
 
 // Data wire is conntec to the Arduino digital pin 8
 #define ONE_WIRE_BUS 8
 
 // Setup a oneWire instance to communicate with any OneWire devices
 OneWire oneWire(ONE_WIRE_BUS);
 
 // Pass our oneWire reference to Dallas Temperature sensor 
 DallasTemperature sensors(&oneWire);
 
 float reading;
 float EC=0 ;
 
 LiquidCrystal_I2C lcd(0x20,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display
 
 void setup()
 {
   // Start serial communication for debugging purposes
   Serial.begin(9600);
    
   // Start up the library
   sensors.begin();
   
   //**************Initialize the LCD*****************
   lcd.init();                      
   lcd.backlight();
   
 //**************set up the pins for the EC sensor*****************
   
   pinMode(A0, INPUT);// EC analogue reading pin
   pinMode(A1, OUTPUT);// initial EC power is A1
   pinMode(A2, OUTPUT);// initial EC GND is A2
 
   digitalWrite(A1, HIGH);//EC power is set to HIGH
   digitalWrite(A2, LOW); //EC Ground is set to LOW
   digitalWrite(A1, LOW);//EC power is set to HIGH
   
 }
 
 void loop(){ 
   // Call sensors.requestTemperatures() to issue a global temperature and Requests to all devices on the bus
   sensors.requestTemperatures(); 
 
 digitalWrite(A1, HIGH);
   EC = analogRead(A0);
   EC = analogRead(A0);
   digitalWrite(A1, LOW);
   
   reading = sensors.getTempCByIndex(0); 
    lcd.setCursor(0,0);
    lcd.print("Temp: ");
    lcd.print(reading);
    lcd.print(" °C");
    lcd.setCursor(0,1);
    lcd.print("EC: ");
    lcd.print(EC);
    
    delay(1000);
     }