Week 7 # - Journal

I started the design on  Thinker CAD using the previous components  I have explained(breadboard / on/off switch  /Lots of wires/buzzer for making voice /LCD l20 screen / IR sensor/LDR sensor/ Arduino/5 v  adaptor for powering the circuit  ) 

then  I copied the code from Thinker cad to the Arduino program after that I started stimulation to ensure the circuit worked. 

in this code :

1- I searched about LCD library to write ( warning / no obstacles ) on it and defined the library  name in the coding also for writing I used ( LCD clear and print ) to make the ( warning / no obstacles ) appear clearly on the LCD

2-  I chose an IR sensor to detect any motion close to the box. IR sensor became low if anything close to it and the opposite became high)  

3- buzzer I wanted it to make a warning voice when something was so close to the circuit so I made it in the code ( high when the IR sensor fell anything close to it )  so I wrote it down in the code if the IR sensor become low the buzzer would be high and made warning voice. 

4- I used ldr to respond to light and to add in the future LED in the circuit which will react to light if the light shutdown in the room and  connected it to the IR sensor for more secure to the box if any thing close to it .

in this circuit, I wanted to design an abox that shows waring in the LCD and the buzzer makes a warning voice if anything became so close to it so I used an (IR /LDR)  sensor for this. 

After ensuring the circuit works on  THINKER CAD I made the circuit by dividing it into a breadboard and connected it to a laptop to download the code to Arduino I also modified the code on the Arduino program because thinkerCad didn't have an LDR  sensor and the LCD library wasn't the same library we worked with in LCD I2C.

   after that, I cut the cardboard, inserted the circuit inside it, and tried it to ensure everything worked together. 

  I can use these skills in designing the circuit of my final project by using thinker cad and the electric components