Trashmatic

An automated trash sorter which can also decide when it must be emptied.

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Things used in this project

Hardware components

SparkFun capacitive touch sensor

Seeed Studio Grove starter kit plus for Intel Edison

Software apps and online services

Amazon Web Services AWS IoT

Story

Story

Trash-Matic is an automated trash sorter, which can make it easier for the people who empty the trash, and for the people who use it. We find a lot of people don’t know what is recyclable and what is not. Also some times people feel to lazy to go to the corresponding bin. Trash-Matic aims to fix these problems by condensing the recycling and garbage bin into one bin. We used an Edison board using Python with a capacative touch sensor (acting as a metal detector) and a colour sensor for paper. Though these are only a few recyclable items you can see how it would not be that hard to expand to other things. We use a Servo motor which dumps things into one bin if recyclable and another if not.

We used Amazon Web Services to help the people who empty the dustbins. Our system can remember what is put into which bin and when they must be emptied. Making the person who empties the trash’s job a lot easier. Instead of having to guess when a bin needs emptying, they can simply get a text message telling them where to go next. This can also help the city government by knowing where they need to put more bins and what people are throwing away.

Even though it seems small, Trash-Matic can help recycling get to the next level. So many people do not understand the importance of recycling, and we would like to change that. Trash-Matic will also cut huge expenses for the city. Trash-Matic, the trash that talks back.

Block diagram

trashmatic.py

from upm import pyupm_servo as servo
import time
from upm import pyupm_grove as grove
from upm import pyupm_i2clcd as lcd
from HTU21D_Ed import HTU21D as RGB
from subprocess import call
from upm import pyupm_i2clcd as lcd

#myLcd = lcd.Jhd1313m1(0, 0x3E, 0x62)

recycle = 0
trash = 0
rgb = RGB(6)
touch = grove.GroveButton(7)
gServo = servo.ES08A(5)
opped = False

thingname = "edison-lightbulb"



def sendAWSData():
	payload = "\"{\\\"state\\\":{\\\"reported\\\":{\\\"recyclable\\\": " + str(recycle) + ", \\\"trash\\\": " + str(trash) + ", \\\"trashed\\\": " + str(trash + recycle) + "}}}\""
	
	shadow_command = "iot-data update-thing-shadow --thing-name " + thingname + " --payload " + payload + " output.txt"
	call("aws " + shadow_command, shell=True)

def recycleItem(recycle):
    recycle += 1
    gServo.setAngle(0)
#    myLcd.setColor(0,255,0)
    time.sleep(1)

def trashItem(trash):
    trash += 1
    gServo.setAngle(110)
#    myLcd.setColor(255,0,0)
    time.sleep(1)

rgb.initSensor()
gServo.setAngle(58)

while 1:
#        myLcd.setColor(0,0,255)
	if rgb.readUReg(0x9C) > 200:
		print("Something's in the bin!")
		time.sleep(2)
		if touch.value() == 1:
			print("Conductive material")
                        recycleItem(recycle)
                        opped = True
		a,r,g,b = rgb.color() # Checks data from sensor. a = ambient light
                if (a+r+g+b) > 2000:
                    print()
                    print("Paper!")
                    recycleItem(recycle)
                    opped = True

                if opped == False:
                    trashItem(trash)
		gServo.setAngle(58)

                opped = False

		sendAWSData()