Published February 10, 2023

Self dispensing hand sanitizer

The device monitors people entering malls, checks vaccination & temperature. Access granted only to those meeting safety requirements.

AdvancedFull instructions providedOver 6 days161

Things used in this project

Hardware components

M5Stack FIRE IoT Development Kit (PSRAM 2.0)

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

M5Stack Light Unit with Photo-resistance

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

M5Stack I2C Hub 1 to 6 Expansion TCA9548A Module

M5Stack ENV III Unit with Temperature Humidity Air Pressure Sensor (SHT30+QMP6988)

M5Stack Mini RFID Unit RC522 Module Sensor

SG90 Micro-servo motor

M5Stack Mini HUB Unit 1 to 3 HUB

Software apps and online services

UIFlow

Story

We have created a device that has been designed to assist shopping malls in monitoring the number of people entering the premises. It has the capability of tracking a user's card to verify their vaccination status and body temperature, reducing the chance of contamination and infection. The device is equipped with an automatic hand sanitizer dispenser and a mask and door dispenser. Access to the mall is limited to those who have met the temperature requirements and have been fully vaccinated, not only controlling the number of people inside, but also ensuring the safety of those present from getting infected with COVID-19.

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

setScreenColor(0xffffff)
env2_0 = unit.get(unit.ENV2, unit.PAHUB0)
pahub_1 = unit.get(unit.PAHUB, unit.PORTA)
tof_1 = unit.get(unit.TOF, unit.PAHUB1)
rfid_1 = unit.get(unit.RFID, unit.PAHUB5)
light_1 = unit.get(unit.LIGHT, unit.PORTB)


people = None



label1 = M5TextBox(120, 210, "0", lcd.FONT_UNICODE, 0xab00ff, rotate=0)
label2 = M5TextBox(0, 77, "Text", lcd.FONT_UNICODE, 0x000000, rotate=0)
label3 = M5TextBox(0, 29, "Text", lcd.FONT_UNICODE, 0x000000, rotate=0)
image0 = M5Img(170, 0, "res/chart.png", True)
label4 = M5TextBox(0, 167, "Temparature:", lcd.FONT_UNICODE, 0xff0000, rotate=0)
label5 = M5TextBox(0, 210, "Capacity:", lcd.FONT_UNICODE, 0x00fff4, rotate=0)
label6 = M5TextBox(249, 167, "℃", lcd.FONT_UNICODE, 0xff0000, rotate=0)
label0 = M5TextBox(170, 167, "0", lcd.FONT_UNICODE, 0x49ff00, rotate=0)

from numbers import Number




people = 0
image0.show()
while True:
  if rfid_1.isCardOn():
    if (rfid_1.readUid()) == 'c255fc117a':
      label2.setText('Vaccinated')
      label3.setText(str(rfid_1.readUid()))
      speaker.tone(1800, 200)
      rgb.setColorAll(0x33ff33)
      wait(1)
  else:
    label2.setText('Scan card')
    label3.setText('Card ID')
    wait(1)
  if (env2_0.temperature) <= 37:
    label0.setText(str(env2_0.temperature))
    rgb.setColorAll(0x33ff33)
    wait(1)
  else:
    speaker.tone(1800, 200)
    rgb.setColorAll(0xff0000)
    wait(1)
  if (tof_1.distance) < 400:
    people = (people if isinstance(people, Number) else 0) + 1
    label1.setText(str(people))
    rgb.setColorAll(0x33ff33)
    speaker.tone(1800, 200)
    wait(1)
  if people >= 300:
    rgb.setColorAll(0xff0000)
    speaker.tone(1800, 200)
    wait(1)
  if (light_1.analogValue) < 300:
    speaker.tone(1800, 200)
    lcd.setBrightness(0)
    rgb.setColorAll(0x000000)
    wait(1)
  wait_ms(2)

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

setScreenColor(0x222222)
servo_15 = unit.get(unit.SERVO, unit.PORTA)
servo_16 = unit.get(unit.SERVO, unit.PORTB)
pir_7 = unit.get(unit.PIR, unit.PORTA)






label0 = M5TextBox(139, 103, "Text", lcd.FONT_UNICODE, 0xFFFFFF, rotate=0)


while True:
  if (pir_7.state) == 1:
    label0.setText('Welcome')
    servo_15.write_angle(180)
    wait(1)
    servo_15.write_angle(0)
    wait(1)
  else:
    label0.hide()
    servo_15.write_angle(90)
    wait(1)
  if btnA.isPressed():
    servo_16.write_angle(180)
    wait(1)
  else:
    servo_16.write_angle(0)
    wait(1)
  wait_ms(2)