Hand Hygienics

2021-06-20 | By M5Stack

License: General Public License Arduino

* Thanks for the source code and project information provided by @Jian Quan@lee sheng kai@Leong Xuan Hao@Teng Hang

About

With the Covid-19 situation, we have decided to build a project that can encourage people to wash their hands. Through researching online publications and news, we found out that majority of people washed their hands incorrectly and ineffectively.

With Hand Hygienics, we aim to solve these problems:

Remind people to wash their hands
Ensure that soap, an essential germ-killing ingredient, is available
Ensure that soap is used
Ensure that people wash their hand for at least 20 seconds
Show people the correct way to wash their hands

Driving Question

How can we design a device to ensure that people wash their hands thoroughly and properly?

Product Information

Hand Hygienics aims to reduce spread of Covid-19 through contact. By encouraging users to exercise proper hand-washing techniques, it will improve the overall hygiene of people, reducing the chances of spreading Covid-19.

How it works (Watch Video for more details)

If there is no soap:

M5 Stack will tell the user to use another sink

If there is soap:

M5 Stack will remind the user to wash his/her hand, via audio and visual prompts

If user ignores the M5 Stack:

M5 Stack will return to standby mode if the PIR sensor do not detect motion for a set period of time

If user washes his/her hand:

M5 Stack will start a 20 seconds countdown (for soaping of hands)
After which, another 10 seconds countdown will start (for rinsing of hands)
During countdown, LED Bars at the side slowly change from red to green
Finally, M5 Stack will display a "Your hands are now clean" message
Returns to standby mode

Summary of Decision Making

Summary of process (with soap, following instructions)

YouTube Link:

Flow Chart

Circuit Implementation

Circuit Diagram

Fritzing

Copy Code

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

setScreenColor(0x305161)
pir0 = unit.get(unit.PIR, (17,16))
tof0 = unit.get(unit.TOF, unit.PAHUB0)
tof1 = unit.get(unit.TOF, unit.PAHUB1)
earth5 = unit.get(unit.EARTH, unit.PORTB)


hide = None
usedsoap = None
washedhands = None
i = None
count = None


label0 = M5TextBox(0, 83, "Wash Your Hands", lcd.FONT_DejaVu56, 0xFFFFFF, rotate=0)
circle0 = M5Circle(297, 22, 10, 0xFFFFFF, 0xFFFFFF)
label1 = M5TextBox(203, 17, "Used Soap", lcd.FONT_Default, 0xFFFFFF, rotate=0)
label2 = M5TextBox(202, 44, "Soap Level", lcd.FONT_Default, 0xFFFFFF, rotate=0)
circle1 = M5Circle(297, 50, 10, 0xFFFFFF, 0xFFFFFF)
label4 = M5TextBox(13, 70, "For", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)
label10 = M5TextBox(3, 19, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)
label11 = M5TextBox(13, 200, "Fingers", lcd.FONT_DejaVu18, 0xFFFFFF, rotate=0)
label3 = M5TextBox(13, 33, "Soap Your Hands", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)
label5 = M5TextBox(60, 58, "20", lcd.FONT_DejaVu40, 0xFFFFFF, rotate=0)
label6 = M5TextBox(120, 70, "Seconds", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)
label7 = M5TextBox(13, 149, "Remeber To", lcd.FONT_DejaVu24, 0xFFFFFF, rotate=0)
label8 = M5TextBox(14, 179, "Scrub Your Hands", lcd.FONT_DejaVu18, 0xFFFFFF, rotate=0)
image0 = M5Img(203, 135, "res/step2.jpg", True)
label9 = M5TextBox(3, 2, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)

from numbers import Number


def mainitems(hide):
  global usedsoap, washedhands, i, count
  if hide:
    circle0.hide()
    circle1.hide()
    label0.hide()
    label1.hide()
    label2.hide()
    label9.hide()
    label10.hide()
  else:
    circle0.show()
    circle1.show()
    label0.show()
    label1.show()
    label2.show()
    label9.show()
    label10.show()

def countdownitems(hide):
  global usedsoap, washedhands, i, count
  if hide:
    label3.hide()
    label4.hide()
    label5.hide()
    label6.hide()
    label7.hide()
    label8.hide()
    label11.hide()
    image0.hide()
  else:
    label3.show()
    label4.show()
    label5.show()
    label6.show()
    label7.show()
    label8.show()
    image0.show()

def CountDown():
  global hide, usedsoap, washedhands, i, count
  mainitems(True)
  countdownitems(False)
  label3.setText('Soap Your Hands')
  for i in range(20, 0, -1):
    if i == 20:
      rgb.setColorAll(0x990000)
      rgb.setBrightness(100)
    if i == 18:
      label8.setText('Rub Your Palms')
      image0.changeImg("res/step3.jpg")
      rgb.setColorAll(0xff0000)
    if i == 13:
      label11.show()
      label8.setText('Lather Between')
      image0.changeImg("res/step4.jpg")
      rgb.setColorAll(0x993300)
    if i == 8:
      label11.hide()
      label8.setText('Wash Fingernails')
      image0.changeImg("res/step8.jpg")
      rgb.setColorAll(0xff6600)
    if i == 5:
      label8.setText('Scrub The Back')
      image0.changeImg("res/step5.jpg")
      rgb.setColorAll(0xffff00)
    if i >= 10:
      label5.setText(str(i))
    else:
      label5.setText(str((str(' ') + str(str(i)))))
    wait(1)
  label3.setText('Rinse Your Hands')
  for i in range(10, 0, -1):
    if i == 10:
      label8.setText('Rinse Hands With')
      label11.setText('Water')
      label11.show()
      rgb.setColorAll(0x33ff33)
      image0.changeImg("res/step10.jpg")
    if i >= 10:
      label5.setText(str(i))
    else:
      label5.setText(str((str(' ') + str(str(i)))))
    wait(1)
  label11.hide()
  countdownitems(True)
  mainitems(True)
  setScreenColor(0x33cc00)
  label0.setText('Your Hands are CLEAN')
  label0.show()
  rgb.setColorAll(0x33cc00)
  wait(2)
  setScreenColor(0x336666)
  rgb.setBrightness(0)

def soapchecker():
  global hide, usedsoap, washedhands, i, count
  label10.setText(str(earth5.analogValue))
  if (earth5.analogValue) >= 500:
    circle1.setBgColor(0x33ff33)
  elif (earth5.analogValue) >= 100:
    circle1.setBgColor(0xff9900)
  if (earth5.analogValue) < 100:
    return False
  return True

def washing():
  global hide, usedsoap, washedhands, i, count
  while not washedhands:
    if btnB.isPressed():
      break
    if (tof0.distance) > 80 and (tof1.distance) > 80:
      label0.setText('Wash Your Hands')
    elif usedsoap and (tof0.distance) <= 80:
      CountDown()
      washedhands = True
    elif (tof1.distance) <= 80:
      usedsoap = True
    elif (tof0.distance) <= 80:
      label0.setText('USE SOAP')
      image0.show()
      if (tof1.distance) <= 80:
        usedsoap = True
    if pir0.state:
      count = 0
    else:
      count = (count if isinstance(count, Number) else 0) + 1
      wait_ms(100)
    if count == 50:
      washedhands = True
    label9.setText(str(count))
    statusupdate()

def statusupdate():
  global hide, usedsoap, washedhands, i, count
  if usedsoap:
    circle0.setBgColor(0x33ff33)
  else:
    circle0.setBgColor(0xff0000)



countdownitems(True)
while True:
  mainitems(False)
  usedsoap = False
  washedhands = False
  if (pir0.state) == 1:
    lcd.setBrightness(100)
    label0.show()
    if soapchecker():
      speaker.tone(1800, 200)
      label0.setText('Wash Your Hands')
      washing()
    else:
      label0.setText('Use the     next sink')
      circle1.setBgColor(0xff0000)
      rgb.setColorAll(0xff0000)
  else:
    label0.hide()
    lcd.setBrightness(0)
    usedsoap = False
    washedhands = False
    statusupdate()
  wait_ms(2)

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Hand Hygienics

2021-06-20 | By M5Stack

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