Team Exploration Project:

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Published February 6, 2024

Smart Convenience Store Utilizing Sustainable Technology

Using a m5 stack and various sensors we designed and built a sustainable smart convenience store.

BeginnerShowcase (no instructions)15 hours256

Smart Convenience Store Utilizing Sustainable Technology

Things used in this project

Hardware components

M5Stack FIRE IoT Development Kit (PSRAM 2.0)

M5Stack Time-of-Flight (ToF) VL53L0X Laser Ranging Unit (MCP4725/)

M5Stack PIR Sensor Human Body Infrared PIR Motion Sensor (AS312)

M5Stack RGB Unit with NeoPixel RGB LED (SK6812)

M5Stack PaHUB Unit

SG90 Micro-servo motor

Story

Introducing our project

Our plan is to save energy by switching off most of the light when no one is in the storeroom or the shop itself using the PIR sensor. While trying to help retail workers to have lesser workload.

While that is happening, there will be a TOF sensor that helps to detect the stock in the shelf. Which helps inform the staff to restock the items in the store.

Lastly, there will be the RFID sensor and a Servo Motor that will act as an entry system to the store.

Research / Background

Through some research, we found out that retail workers are in high demand and retail store are lacking manpower. Thus, causing many retail worker to work more than they required, and as a result, causing many workers to quit their retail jobs or suffering in their workforce. Not only so, but retails workers are always underpay therefore decreasing the employment rate in retail industry.

Also, leaving the lights on in retail stores when the stores are empty waste a lot of electricity and hence is not sustainable.

Product introduction

There will be multiple PIR sensor detecting people around the store after 15 minutes When no one is around, the light will switch off.

Another function we have is to be able to measure the amount of stock in the shelf

As the TOF measure the distance, the distance will determine the output of the text.

For example, if the TOF sensor detects that the object is 5cm away from it, the text output will say “Stock are fully stocked”

While if the object is 30cm away, the output text will be “Restock required”

The TOF sensor will be place all over the shelf

Similarly to a MRT gate system, we also have a staff only entry gate to prevent stranger from entering without permission.

Making the store more manageable and secure for the staff to work in.

This is possible by using the RFID reader and servo motor

Block diagram

Flowchart

Video Link

Code

from m5stack import *
from m5ui import *
from uiflow import *
import time
import unit

setScreenColor(0x222222)
rfid_0 = unit.get(unit.RFID, unit.PAHUB0)
servo_0 = unit.get(unit.SERVO, unit.PORTB)
pahub_0 = unit.get(unit.PAHUB, unit.PORTA)
tof_1 = unit.get(unit.TOF, unit.PAHUB1)


distance = None



label0 = M5TextBox(48, 107, "Please place card", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)
label1 = M5TextBox(107, 184, "Checking Stock", lcd.FONT_Default, 0xFFFFFF, rotate=0)




while True:
  if rfid_0.isCardOn():
    label0.setText('welcome to store!')
    speaker.setVolume(0.5)
    speaker.tone(1800, 100)
    servo_0.write_angle(90)
    wait(2.5)
  else:
    label0.setText('please place card')
    servo_0.write_angle(0)
  distance = tof_1.distance
  if distance <= 50:
    label1.setText('Stock Level is Full')
    rgb.setColorAll(0x66ff99)
  elif distance > 50 and distance <= 70:
    label1.setText('Stock Level is High')
    rgb.setColorAll(0x33ff33)
  elif distance > 70 and distance <= 150:
    label1.setText('Stock Level is Moderate')
    rgb.setColorAll(0xff9900)
  elif distance <= 200:
    label1.setText('Stock Level is Low')
    rgb.setColorAll(0xff0000)
  else:
    label1.setText('There is No Stock')
    rgb.setColorAll(0xff0000)
    wait(0.2)
    rgb.setColorAll(0x000000)
  wait_ms(2)

from m5stack import *
from m5ui import *
from uiflow import *
import unit

setScreenColor(0x222222)
pir_1 = unit.get(unit.PIR, unit.PORTB)
rgb_1 = unit.get(unit.RGB, unit.PORTA)






label0 = M5TextBox(23, 107, "Welcome to our store", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)
label1 = M5TextBox(23, 69, "Text", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)


while True:
  if (pir_1.state) == 1:
    rgb_1.setColorAll(0xffffff)
    label1.setText('customer detected')
    label0.setText('turning on lights')
  else:
    rgb_1.setColorAll(0x000000)
    label1.setText('customer not detected')
    label0.setText('lights are off')
  wait_ms(2)

Smart Convenience Store Utilizing Sustainable Technology