Week 7- Journal

The last step in this phase was the cardboard cutting with customized components places and dimensions.

Text Code

Before Void Setup 

• Before writing any code (orders) first i define the component's status before Void setup to preserve a place called x on the ARDUINO memory.

• So I wrote all the pins and their components I connected before in the form of integers (int).

• For the LCD I installed its library and included its defining code which is written in rows (and 9,10,11) and changed the digits in row 11 to fit the LCD I used which is (16,2) for the number of digits and rows.

• And for the LRD I define it on DO pin as this is what I connected it to pin 2 on Arduino.

• Make sure that the brackets, symbols & semicolons are in their places with the right number.

Void Setup

• I am supposed to write any action I want to repeat only once Also it is preferable to define the outputs & inputs here so I don`t have to define it again in void setup and to be easy for the Arduino to read.

• My outputs in this circuit are 3 LEDs  (1,2,3) and an LCD screen.

• My inputs are 2 push buttons and an LRD sensor.

Void Loop

• For any order that I want to be repeated through the process I wrote it under the void loop.

• I used the if else condition to make the buttons link with the LCD and LED.

what do I want to achieve?

 When the user presses the button an LED will light up and a sentence (well done or almost there) appear on the LCD.

 For the sensor part when the sensor is not receiving light the LED doesn`t light else: the LED is working and (3aaaash) appears on the screen.

 so for the first step, when I press the button (LOW) the LED will light up (HIGH) and the LCD will write a certain sentence ELSE (if other thing happens) The LED will not light up, with the same concept on the third LED but instead of the button I used LRD, when it receive light the LED will light up and LCD will write the final sentence.