Week 8

(1) 

First i included the DHT11 library,

then i defined DHT pin on (4) and i defined its type (DHT11) 

then i included the LCD 12C library 

and i added two integers for the two pins of (Red&Blue) of the RGB on pin 2&3

now add one character (char) naming incomingData = '0' for the data the arduino should recieve from the app through the bluetooth module.

(2)

Now in the void setup i added dht.begin to start the sensor

then the lcd.init to initialise the LCD and the lcd.backlight to turn on the backlight of the LCD.

also i added the Serial.begin (9600) to use the serial monitor to read the data the arduino should recieve.

(3)

Now make the voide loop, 

start by writing while (Serial.available() == 0) so that the serial monitor not read anything unless it recives data.

and incominData = Serial.read() to define the incoming data as the reading of the serial monitor.

 making the LCD clear , and then say

if (incomingData == '1') [ if we press button 1 on the app]

then make the RGB Red colore HIGH (turn it ON) , and the RGB Blue colore LOW (turn it OFF)

and then write on the LCD "Temp=(the sensor read)" "Celesius"

(4)

Complete the voide loop, 

if (incomingData == '2') [ if we press button 2 on the app]

then make the RGB Red colore LOW (turn it OFF) , and the RGB Blue colore HIGH (turn it ON)

and then write on the LCD "Humidity=(the sensor read)" "%"

then wait for 2000ms in a clear LCD 

In the physical wiring 

I uploaded the code on Arduino to test it