nayi kwek

•

Claire Ho

•

Mya Phu Pwint Soe 1362

•

Darissa

Published February 16, 2025

Engineering Exploration Project

A project to bring convenience and to enhance the users' experience in a retail store.

IntermediateShowcase (no instructions)30 days97

Things used in this project

Hardware components

M5Stack FIRE IoT Development Kit (PSRAM 2.0)

M5Stack Mini RFID Unit RC522 Module Sensor

SG90 Micro-servo motor

M5Stack RGB Unit with NeoPixel RGB LED (SK6812)

M5Stack I2C Hub 1 to 6 Expansion TCA9548A Module

M5Stack Pb.Hub

M5Stack Earth Module Grove Compatible Soil monitoring

M5Stack Unit ENV-II

Hand tools and fabrication machines

Paper box

Scissors, Free Fall

Tape, Double Sided

Story

Overview:

Retail stores face challenges in ensuring security, efficient energy usage and sustainable environmental management. Our project aims to solve these issues by providing a smart system that allows store owners to unlock doors using cards, eliminating the need for traditional keys. In addition, our project includes environmental sensors that monitor humidity in the air in the retail store, activating dehumidifier if necessary. The collected water is reused for watering the plants in the store, supported by soil moisture sensors that will water the plants if the moisture of the soil is too low. Our project also enables remote control of the store lighting, activation of dehumidifier or watering of the soil through a mobile phone, which brings convenience and energy efficiency for retail stores.

Driving Question:

How can we utilise smart technology to enhance the convenience and sustainability of an eco-friendly retail store for both customers and retailers?

Our Project:

Our project uses the M5Stack RFID Unit provides smart, keyless access for retail store owners using card-based door locks, eliminating the need for traditional keys. With a simple card tap, store owners can unlock their doors securely and conveniently.

An M5Stack ENV II Unit uses sensors to detect humidity levels in the store. If the humidity is too high, the dehumidifier will be automatically activated to maintain a suitable environment. The water collected from the dehumidifier is reused for plant watering, supported by an M5Stack Earth Unit that measures soil moisture. If the moisture level is too low, the system will automatically start watering the plants.

A M5Stack RGB Unit allows store owners to remotely manage the store’s lighting through a mobile phone by Remote +, providing energy efficiency and convenience. Additionally, the dehumidifier and watering system can also be controlled remotely, offering full environmental management for the store with ease. This smart system enhances security, promotes sustainability, and reduces manual workload for store owners.

Displays on M5Stack:

The Door opening icon:

Picture of a person opening the door

If ENV II Unit detects humidity is >45%:

Picture of a dehumidifier

If Earth Unit detects soil moisture <600:

Picture of watering of plants

If the QR Code for the Remote + :

QR Code

Prototype:

From top view:

Top view of prototype

From side view:

Side view of the prototype

From inside view:

Inside view of the prototype

YouTube Link:

https://youtu.be/OKaOstETFtQ?si=dgsUjHZB2kKeCJDk

Code

Code for M5Stack

from m5stack import *
from m5ui import *
from uiflow import *
import time
import unit
remoteInit()

setScreenColor(0xffffff)
servo_2 = unit.get(unit.SERVO, unit.PORTB)
pahub_2 = unit.get(unit.PAHUB, unit.PORTA, 0x70)
rfid_2 = unit.get(unit.RFID, unit.PAHUB4)
env2_2 = unit.get(unit.ENV2, unit.PAHUB0)
pbhub_0 = unit.get(unit.PBHUB, unit.PAHUB2)
rgb_0 = unit.get(unit.RGB, unit.PORTE)
earth_2 = unit.get(unit.EARTH, unit.PORTD)
servo_4 = unit.get(unit.SERVO, unit.PORTE)


switch_value = None
slider_value = None



Temperature = M5TextBox(8, 23, "Temperature", lcd.FONT_Comic, 0x000000, rotate=0)
humidity = M5TextBox(8, 53, "Humidity", lcd.FONT_Comic, 0x000000, rotate=0)
Temp = M5TextBox(176, 22, "text", lcd.FONT_Comic, 0x000000, rotate=0)
DegC = M5TextBox(249, 22, "Deg C", lcd.FONT_Comic, 0x000000, rotate=0)
humi = M5TextBox(176, 53, "text", lcd.FONT_Comic, 0x000000, rotate=0)
Percentage = M5TextBox(264, 53, "%", lcd.FONT_Comic, 0x000000, rotate=0)
Question = M5TextBox(15, 83, "Question", lcd.FONT_Comic, 0x000000, rotate=0)
image0 = M5Img(100, 113, "res/water.jpg", True)
image1 = M5Img(100, 113, "res/dehumi.jpg", True)
image2 = M5Img(100, 113, "res/welcome.jpg", True)


# Describe this function...
def Humidity():
  global switch_value, slider_value
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x99ffff)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x000000)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x99ffff)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x000000)
  wait(1)
  speaker.sing(523, 1/2)
  speaker.sing(587, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(494, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(262, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(262, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(587, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(494, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(262, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(262, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(587, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(494, 1/2)
  speaker.sing(523, 1/2)
  speaker.sing(587, 1/2)
  speaker.sing(659, 1/2)
  speaker.sing(698, 1/2)
  speaker.sing(784, 1/2)
  speaker.sing(698, 1/2)
  speaker.sing(659, 1/2)
  speaker.sing(587, 1/2)
  speaker.sing(523, 1)
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x99ffff)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x000000)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x99ffff)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x000000)
  wait(1)

# Describe this function...
def water():
  global switch_value, slider_value
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x33cc00)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x333333)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x33cc00)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x333333)
  wait(1)
  speaker.sing(523, 1)
  speaker.sing(392, 1)
  speaker.sing(349, 1)
  speaker.sing(330, 1)
  speaker.sing(523, 1)
  speaker.sing(392, 1)
  speaker.sing(349, 1)
  speaker.sing(330, 1)
  speaker.sing(523, 1)
  speaker.sing(392, 1)
  speaker.sing(349, 1)
  speaker.sing(330, 1)
  speaker.sing(349, 1)
  speaker.sing(330, 1)
  speaker.sing(392, 1)
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x33cc00)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x333333)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x33cc00)
  wait(1)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x333333)
  wait(1)

# Describe this function...
def Door():
  global switch_value, slider_value
  speaker.sing(330, 1/2)
  speaker.sing(349, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(196, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(196, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(196, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(196, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(448, 1/2)
  speaker.sing(392, 1/2)
  speaker.sing(349, 1/2)
  speaker.sing(330, 1/2)
  speaker.sing(165, 1/2)
  speaker.sing(330, 1/2)
  speaker.sing(165, 1/2)
  speaker.sing(330, 1/2)
  speaker.sing(165, 1/2)
  speaker.sing(330, 1/2)
  speaker.sing(349, 1/2)
  speaker.sing(330, 1/2)
  speaker.sing(294, 1/2)
  speaker.sing(262, 1/2)
  speaker.sing(247, 1/2)
  speaker.sing(220, 1)
  speaker.sing(220, 1/2)
  speaker.sing(247, 1/2)
  speaker.sing(262, 1/2)
  speaker.sing(294, 1/2)
  speaker.sing(196, 1)
  speaker.sing(262, 1)
  speaker.sing(294, 1/2)
  speaker.sing(330, 1/2)
  speaker.sing(294, 2)
  speaker.sing(294, 1)
  speaker.sing(262, 1)


def buttonA_wasPressed():
  global switch_value, slider_value
  setScreenColor(0xffffff)
  Question.setText('Door Opening!!')
  image2.show()
  servo_2.write_angle(90)
  rgb.setColorAll(0x6666cc)
  wait(3)
  servo_2.write_angle(0)
  rgb.setColorAll(0x333333)
  wait(3)
  pass
btnA.wasPressed(buttonA_wasPressed)

def buttonB_wasPressed():
  global switch_value, slider_value
  Question.hide()
  lcd.qrcode('https://flow.m5stack.com/remote?id=1081402462440783872', 72, 32, 176)
  wait(7)
  pass
btnB.wasPressed(buttonB_wasPressed)






def switch_2_callback(switch_value):
  global slider_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  if switch_value == 0:
    pbhub_0.setColorPos(0, 0, 0x000000)
  elif switch_value == 1:
    pbhub_0.setColorPos(0, 0, 0xffffff)

def slider_2_callback(slider_value):
  global switch_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  if slider_value <= 20:
    pbhub_0.setBrightness(0, 20)
  elif slider_value > 20 and slider_value <= 50:
    pbhub_0.setBrightness(0, 50)
  elif slider_value > 50 and slider_value <= 70:
    pbhub_0.setBrightness(0, 70)
  elif slider_value > 70:
    pbhub_0.setBrightness(0, 100)

def button_remotename_callback():
  global switch_value, slider_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  setScreenColor(0xffffff)
  Question.setText('Door Opening!!')
  image2.show()
  servo_2.write_angle(90)
  rgb.setColorAll(0x6666cc)
  wait(3)
  servo_2.write_angle(0)
  rgb.setColorAll(0x333333)
  wait(1)

def gauge_2_callback():
  global switch_value, slider_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  return earth_2.analogValue
def button_7_callback():
  global switch_value, slider_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  setScreenColor(0xffffff)
  Question.setText('Start Watering!!')
  image0.show()
  humidity.setText('Soil moisture')
  humi.setText(str(earth_2.analogValue))
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x33cc00)
  wait(3)
  rgb.setColorAll(0x333333)
  pbhub_0.setServoAngle(2, 0, 180)

def gauge_1_callback():
  global switch_value, slider_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  return env2_2.humidity
def button_2_callback():
  global switch_value, slider_value, servo_2, pahub_2, rfid_2, env2_2, pbhub_0, rgb_0, earth_2, servo_4, Door, Humidity, water 
  setScreenColor(0xffffff)
  Question.setText('Start Dehumidifying!')
  image1.show()
  pbhub_0.setServoAngle(2, 0, 0)
  rgb.setColorAll(0x99ffff)
  wait(3)
  pbhub_0.setServoAngle(2, 0, 180)
  rgb.setColorAll(0x000000)

Temperature.hide()
humidity.hide()
Temp.hide()
DegC.hide()
humi.hide()
Percentage.hide()
Question.setText('Tap Your Card to Unlock the Door!!')
image0.hide()
image1.hide()
image2.hide()
while True:
  if rfid_2.isCardOn():
    if (rfid_2.readUid()) == 'd0ba2c4f9':
      setScreenColor(0x33cc00)
      humi.setText('Welcome!')
      Question.setText('Group 2')
      speaker.tone(1800, 500)
      wait(2)
      servo_2.write_angle(90)
      wait(7)
      rgb.setColorAll(0x33cc00)
      servo_2.write_angle(0)
      Door()
      pbhub_0.setColorPos(0, 1, 0xffffff)
      setScreenColor(0xffffff)
      Temperature.setText('You can get the QR by pressing Button B as well')
      lcd.qrcode('https://flow.m5stack.com/remote?id=1081402462440783872', 90, 80, 150)
      wait(7)
      setScreenColor(0xffffff)
      Temperature.setText('Temperature')
      humidity.show()
      Temp.setText(str(env2_2.temperature))
      humi.setText(str(env2_2.humidity))
      DegC.show()
      Percentage.show()
      Question.hide()
      wait(5)
      if (env2_2.humidity) >= 45:
        Temp.setText(str(env2_2.temperature))
        humi.setText(str(env2_2.humidity))
        Question.setText('Start Dehumidifying!')
        image1.show()
        pbhub_0.setServoAngle(2, 0, 0)
        rgb.setColorAll(0x99ffff)
        wait(1)
        Humidity()
        pbhub_0.setServoAngle(2, 0, 180)
        rgb.setColorAll(0x000000)
        wait(1)
      wait(7)
      humidity.setText('Soil moisture')
      humi.setText(str(earth_2.analogValue))
      if (earth_2.analogValue) <= 600:
        Temperature.hide()
        Temp.hide()
        DegC.hide()
        Percentage.hide()
        Temperature.hide()
        rgb.setColorAll(0xff0000)
        wait(2)
        Question.setText('Start Watering!!')
        image0.show()
        humidity.setText('Soil moisture')
        humi.setText(str(earth_2.analogValue))
        pbhub_0.setServoAngle(2, 0, 0)
        rgb.setColorAll(0x33cc00)
        wait(1)
        water()
        pbhub_0.setServoAngle(2, 0, 180)
        rgb.setColorAll(0x333333)
        wait(1)
      image0.hide()
      image1.hide()
      wait(3)
      humidity.hide()
      humi.hide()
      while True:
        Question.setText('Press Button A to open the door!!')
        image2.hide()
        wait_ms(2)
    elif (rfid_2.readUid()) != 'd0ba2c4f9':
      setScreenColor(0xff0000)
      Temperature.setText('Intruder!!')
      speaker.tone(100, 200)
  wait_ms(2)

Credits

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Engineering Exploration Project