Week #7 - Journal

Automatic

The required is to make the LCD write shade when the wooden strips is in the shade mode and write seat when it's on the seat mode this is according to the microwave sensor

• Firstly I started to connect the microwave sensor to the Arduino (connected to pin 3 )

---In the text code :

in the loop setup I defined the sensor as an input

• Then I started to search for LCD code and how to connect it's wires , I took the reference from maker guides

• reference :https://www.makerguides.com/character-i2c-lcd-arduino-tutorial/

---In the text code :

- I copied the code of the LCD in the text code and started to edit on it :

To make the LCD write ( shade ) when the microwave sensor doesn't sense motion , and to write (seat ) when the microwave senses motion ;

so I started to put an if condition for it and to make sure that these components work together , I printed the values on the serial monitor .

• For adding the servo motor : I searched for servo motor code and how to connect it to arduino

• reference : https://www.allaboutcircuits.com/projects/servo-motor-control-with-an-arduino/

---In the text code :

Defined the servo to be named as servo

then in the void setup , I defined that it's connected to pin 7 ,

to make it connected to the microwave sensor ;

-IF condition : when the microwave sensor doesn't sense motion servo is on 0 degrees ,when the microwave sensor senses motion servo is on 180 degrees

This was the automatic mode and how it worked

Manual mode

To add to the previous code a manual mode :

I need one slide switch ( choses if it's manual or automatic mode )

-push button ( (to turn on the seat mode (motor moves to 180 degree , LCD writes seat mode) or turns off (shade mode ) )

---In the text code :

I defined both buttons to be as a selector , and on_off

-then in the void setup , I defined the selector as INPUT and the on_off as INPUT_PULLUP

-in the void loop : if condition : if the selector is 1 or automatic mode then it makes the previous code , if not : on_off is low and will start to move the servo and write on the LCD (seat mode )

On tinker cad

• I had problems in my project , So i asked about it in the open time and I got them solved by the instructor :

• -The first problem was that not all charachters appear on LCD , it was solved by updating the code version

• The second was that the second part of the code in the if condition didn't work , and it was a small problem in the wires