presentation of the final project for internet of things course at La Sapienza 2019

1. Smart Bin
INTERNET OF THINGS
Ahmed Osman
Fabio Di Spazio
Damir Mukametkarim

2. PROPOSAL
OUTLINE
KEY DISCUSSION
POINTS
Our Idea
Persona
User Evaluation
Overview How it works
Implementation
Hardware Components
Flow-chart
Code Snippet
Demo

3. THE IDEA It's sometimes difficult to know where to
put the different types of aste (metal,
plastic, paper ,etc....).
Our idea is to build an smart recycling bin
to address the before-mentioned
problem.
We will start only with sorting metal and
in future we will expand it.

4. PERSONA
30 years old
In relationship
Rome
MA
Architecturer
Angela
Goals
Reduce waste and recycle as much as possible
Make the world a better place by doing her part

5. Frustrations
Struggles with how to recycle some materials
Her partner is not into recycling
Balancing her work and relax time
Bio
Angela is a conscious woman who lives with her boyfriend in the center of Rome. They
live in a small apartment. She is an architecture and she use the bicycle every morning to
go to her office .
She cares about the environment, so she always reuses things before throwing
them away. She feels mad and helpless when she sees people don’t care about
recycling in public spaces, mixing rubbish and damaging the surrounding
environment.
protecting the nature is an important to her and she expects the same attitude
from people.

6. USER
EVALUATION
After testing the prototype with two users, their
input were to add a feature.
the feature was to alert the cleaning staff in public
places like Malls, universities and parks, that the bin
is full.

7. HIGH LEVEL OVERVIEW
STEP 1
The User puts the
item in the bin
STEP 2
The system checks
the Item, if it is
metal or not
STEP 3
The user collect the
credit using his
smartphone
How it works

8. How it was made
Implementation

9. HARDWARE
„STM32-
F401RE
NFC TAG EXPANSION BOARD M24SR
„ULTRASONIC HC-04
SENSOR
„HESCHEN INDUCTIVE PROXIMITY SENSOR
„SG90 MICRO-SERVO MOTOR

10. FLOW-CHART

11. CODE SNIPPET
Ultrasonic Distance
Detection

12. CODE SNIPPET Writing Tag

13. CODE SNIPPET Writing Tag & NFC

14. CODE SNIPPET Android App

15. Techincal diffculties
To start the board we have to physically
press the reset button
The sensor has a very small detection
distance range 4 to 7 mm
The NFC Board„Heschen inductive
sensor

16. DEMO

17. THANK YOU