1
00:00:00,690 --> 00:00:08,689
Hi, we are the students of the SOB and we are going to present our smart bin that can open and close automatically to make with this specializer.

2
00:00:09,689 --> 00:00:23,690
To make this smart bin, we use a bin, a cardboard, an ultrasonic sensor, a servo motor, a microcontroller board, batteries, fixed tape, double-sided tape and hot glue.

3
00:00:23,690 --> 00:00:32,250
hot glue. The ultrasonic sensor is a device that detects the distance between the object and the sensor.

4
00:00:34,409 --> 00:00:41,689
This allows the bin to open automatically when someone approaches. This work by sending a sound

5
00:00:41,689 --> 00:00:48,009
wave and measuring the time it takes to boost back. This time is converted into distance.

6
00:00:48,009 --> 00:01:00,009
The cables of the drasonics sensor are the VCC that provides the electrical current and supply the voltage needed for the sensor to actuate.

7
00:01:00,009 --> 00:01:06,010
The GND or ground cable that provides the return path for the electric current.

8
00:01:06,010 --> 00:01:20,609
the signal cable that sends the electric wave that is sent by the Arduino to the pin of the trigger

9
00:01:20,609 --> 00:01:35,409
and to send the sound wave, the echo cable that reflects the sound wave from the echo, so from the trigger.

10
00:01:35,409 --> 00:01:40,049
The servo motor is the component that opens and closes the DLD.

11
00:01:40,049 --> 00:01:48,709
It is an actuator that rotates in a specific position depending on the signals received from the microcontroller board.

12
00:01:48,709 --> 00:01:55,909
This works by receiving a PWM,

13
00:01:55,909 --> 00:02:02,209
which is a modulation from the Arduino, which determines the rotation angle.

14
00:02:02,209 --> 00:02:10,370
for example if it can be programmed to rotate nightly grades when to open the lid when someone

15
00:02:10,370 --> 00:02:17,889
approaches and back to zero grade when after a few seconds to close it the cables of the

16
00:02:19,009 --> 00:02:23,250
servo motor are the red cable that is the

17
00:02:25,490 --> 00:02:31,810
bcc then the black or brown cable that is the gnd or ground and the yellow or orange that is

18
00:02:31,810 --> 00:02:44,289
the signal cable. We use batteries for giving autonomy to the bin. This is useful because

19
00:02:44,289 --> 00:02:55,009
in case of a power outage the bin can stay working because it doesn't need to be connected

20
00:02:55,009 --> 00:03:05,009
To create the code we use autoblocking and alpha visual programming based on blocks.

21
00:03:05,009 --> 00:03:15,009
To make the code we use the option of the ninja board and we use these blocks.

22
00:03:15,009 --> 00:03:26,379
Then, in the Arduino that the APOS.blocking have an option to change the code notoblocking to Arduino,

23
00:03:26,379 --> 00:03:38,379
we have first the line include servo.h that this define the servo library which is necessary for controlling the servo motor.

24
00:03:38,379 --> 00:03:49,099
motor then the line ultrasound distance one is defined this is this a this

25
00:03:51,020 --> 00:04:02,139
makes the this makes the ultrasonic sensor works that means that the ultrasonic wave is sent from

26
00:04:02,139 --> 00:04:11,580
the trigger and reflect it into the echo. To install this echo in the microcontroller

27
00:04:11,580 --> 00:04:20,860
board we need to move the autoblocking code into the Arduino code. Polysearch has an option to change it.

28
00:04:24,220 --> 00:04:31,500
In our project both the ultrasonic sensor and the servo motor are connected in the Arduino board

29
00:04:32,139 --> 00:04:41,839
Following the configuration of the code, Ultrasonic is connected like the VCC in red pin in digital 3,

30
00:04:41,839 --> 00:04:58,839
the GND in black pin in digital 3, the Tiger in yellow pin in digital 3 and the Echo in yellow pin in another column but this time in digital 4.

31
00:04:58,839 --> 00:05:08,339
Then the servomotor was connected the VCC cable into the red pin in digital 2 in this case

32
00:05:08,339 --> 00:05:12,839
then the GMD to the black pin in digital 2 as well

33
00:05:12,839 --> 00:05:19,839
and finally the signal cable that is the yellow into the yellow pin in digital 2 as well.

34
00:05:19,839 --> 00:05:40,740
This smart frass is useful for weight management, it makes it easier, and by opening and closing

35
00:05:40,740 --> 00:05:46,180
it automatically, it makes it more practical and more energetic.

36
00:05:46,180 --> 00:05:53,860
And this is our project, thanks for listening, and we hope this can serve as inspiration

37
00:05:53,860 --> 00:06:00,500
for future projects for maintaining it hygienically people and for making Boots Galicia.