Smart waste disposal | Mediateca de EducaMadrid

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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. 00:00:00

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. 00:00:09

hot glue. The ultrasonic sensor is a device that detects the distance between the object and the sensor. 00:00:23

This allows the bin to open automatically when someone approaches. This work by sending a sound 00:00:34

wave and measuring the time it takes to boost back. This time is converted into distance. 00:00:41

The cables of the drasonics sensor are the VCC that provides the electrical current and supply the voltage needed for the sensor to actuate. 00:00:48

The GND or ground cable that provides the return path for the electric current. 00:01:00

the signal cable that sends the electric wave that is sent by the Arduino to the pin of the trigger 00:01:06

and to send the sound wave, the echo cable that reflects the sound wave from the echo, so from the trigger. 00:01:20

The servo motor is the component that opens and closes the DLD. 00:01:35

It is an actuator that rotates in a specific position depending on the signals received from the microcontroller board. 00:01:40

This works by receiving a PWM, 00:01:48

which is a modulation from the Arduino, which determines the rotation angle. 00:01:55

for example if it can be programmed to rotate nightly grades when to open the lid when someone 00:02:02

approaches and back to zero grade when after a few seconds to close it the cables of the 00:02:10

servo motor are the red cable that is the 00:02:19

bcc then the black or brown cable that is the gnd or ground and the yellow or orange that is 00:02:25

the signal cable. We use batteries for giving autonomy to the bin. This is useful because 00:02:31

in case of a power outage the bin can stay working because it doesn't need to be connected 00:02:44

To create the code we use autoblocking and alpha visual programming based on blocks. 00:02:55

To make the code we use the option of the ninja board and we use these blocks. 00:03:05

Then, in the Arduino that the APOS.blocking have an option to change the code notoblocking to Arduino, 00:03:15

we have first the line include servo.h that this define the servo library which is necessary for controlling the servo motor. 00:03:26

motor then the line ultrasound distance one is defined this is this a this 00:03:38

makes the this makes the ultrasonic sensor works that means that the ultrasonic wave is sent from 00:03:51

the trigger and reflect it into the echo. To install this echo in the microcontroller 00:04:02

board we need to move the autoblocking code into the Arduino code. Polysearch has an option to change it. 00:04:11

In our project both the ultrasonic sensor and the servo motor are connected in the Arduino board 00:04:24

Following the configuration of the code, Ultrasonic is connected like the VCC in red pin in digital 3, 00:04:32

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. 00:04:41

Then the servomotor was connected the VCC cable into the red pin in digital 2 in this case 00:04:58

then the GMD to the black pin in digital 2 as well 00:05:08

and finally the signal cable that is the yellow into the yellow pin in digital 2 as well. 00:05:12

This smart frass is useful for weight management, it makes it easier, and by opening and closing 00:05:19

it automatically, it makes it more practical and more energetic. 00:05:40

And this is our project, thanks for listening, and we hope this can serve as inspiration 00:05:46

for future projects for maintaining it hygienically people and for making Boots Galicia. 00:05:53

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