Week 7 - Journal

after some searches about the components i use, I started adding the components on the breadboard and connecting it to the power source and Arduino UNO board.

1. Connected the  light sensor as follows:

1. 1. VCC to positive of power source.

   2. GND to negative of poer source.

   3. DO to one of  digital Arduino pins .

2. connected Ultrasonic sensor as follows:

   2. 1. 1. VCC to positive of power source.

         2. GND to negative of poer source.

         3. TRIG to one of  digital Arduino pins.

         4. ECHO to one of  digital Arduino pins.

3. connected the led as follows:

1. terminal 1 to ground of power source.

2. terminal 2 to the terminal 1 of the resistor.

3. terminal 2 to one of  digital Arduino pins.

4. connected the buzzer as follows:

1. terminal 1 to ground of power source.

2. terminal 2 to one of  digital Arduino pins.

code description:

-when power is on the ultrasonic sensor and light sensor start their work .

-when there is any object at distance 10 from the ultrasonic the red led and the buzzer should work as an alarm .

-and if it is dark the light will be on by the light sensor and the white led. 

-I coded the red and white led also the buzzer as following:  

-when the ultrasonic sensor read less than 10 the buzzer and the red led is on and when reads more than 10 they are off, for white led when light sensor reads 1 ( dark outside) the led is on when it reads 0 ( not dark outside) the led is off.