Week # 6 - Journal

The smart circuit : 

 contains an input unit  light sensor (LDR sensor)

it is connected to the breadboard  the board

and jumper wire connection with  Arduino by wires 

• Vcc to Arduino 5v

• Gnd to Arduino GND 

• A0 to Arduino A0 (analog pin ) 

• And an output unit: 

a white LED connected by breadboard with a resistance of 220 ohm to GND 

and the other connected to Arduino digital pin

• And an output unit: 

the buzzer  connected to the board and the ground on  and the other end is connected to the Arduino  digital pin 

• Total connections are 10 jumpers .

Programming by Code Blocks : 

I used  - If else  - conditionals

And I wrote If it reads the analog pin  (input unit - LDR sensor ) greater than or  = 250 

Then make the LED and Buzzer HIGH or make them working (ON) and wait for one second and make it off (pin LOW) 

Frequently

it's inside the void loop 

else make them off 

The first challenge

Tinkercad  program  I did not find the LDR Sansor .

After searching on Google and asking colleagues

I found the alternative ( photoresistor )  to use it and implement the rest of the steps 

The second challenge

The Blocks code doesn't work but  When I upload to Arduino  it was working

And after seeing the attached file and getting advice from the instructor 

I found that I was setting up the sensor reading analog pin  490  it's wrong 

but when i use 250 it's working 

I knew from the attached files 

The LDR sensor reading changes from sunlight and closed room light 

Certainly, training create a smart circle 

consisting of inputs such as the LDR sensor

And outputs such as LED and Buzzer 

Writing codes with Code Blocks Tankercad

And the use The ( IF , Else ) Condition 

Good experience I will use in the final project

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