Published November 4, 2019 © LGPL

Eye Care Kit

Get continuous info about luminosity, temperature and humidity level in the room and turns on leds every hour for 5min to relax eyes.

IntermediateFull instructions provided1 hour1,844

Things used in this project

Hardware components

Arduino UNO

LED (generic)

DHT11 Temperature & Humidity Sensor (3 pins)

Photo resistor

Jumper wires (generic)

Resistor 10k ohm

Switch Sealing Boot, Button Operators

Software apps and online services

Arduino IDE

Story

In modern world computers and phones play an integral role and eyes take on the greatest associated load. To keep eyesight at its best, one need to take care of eyes every day. My "Eye care kit" will help to will help to automate the process of eye care and greatly simplify the acquisition of information about environmental conditions, the ones important to the eyes.

To use the kit, you need to connect all the elements according to the circuit diagram (part Schematics). Here is the photo of the ready Arduino with all the elements:

How the code is working: it continuously provide info about luminosity, temperature and humidity. As for the comfort of eyes the level of the humidity in the room should be >80% and the level of the luminosity should be >500KΩ, red led will let you know if any of these parameters don't meet up the requirements for comfortable work. When the button is pressed, the counting process is started: after 55 min the leds (green and yellow) will shine during 5min, it works during 3hours. Green and yellow colours help to relax eyes, so shining leds will help your visibility and take a short rest. Here is the video of how it works:

Code

Eye care kit

#include <SoftwareSerial.h>
#include <cactus_io_AM2302.h>

#define AM2302_PIN 8

const int pinPhoto = A0;
int raw = 0;
AM2302 dht(AM2302_PIN);
int LED_RED = 13;
const int buttonPin = 2;
int buttonState = 0;
unsigned long timing;
uint32_t period5 = 5 * 60000L;
uint32_t period55 = 55 * 60000L;

const int L1 = 3; 
const int L2 = 4; 
const int L3 = 5; 
const int L4 = 6;
const int L5 = 7;

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode( pinPhoto, INPUT );
  pinMode(buttonPin, INPUT);

pinMode(LED_RED, OUTPUT);
 pinMode(L1, OUTPUT); 
    pinMode(L2, OUTPUT); 
    pinMode(L3, OUTPUT); 
    pinMode(L4, OUTPUT);
    pinMode(L5, OUTPUT);
}

void loop() {
  dht.readHumidity();
  dht.readTemperature();
  raw = analogRead(pinPhoto);
   buttonState = digitalRead(buttonPin);

  if (isnan(dht.humidity) || isnan(dht.temperature_C)) {
    return;
  }
digitalWrite(LED_RED, HIGH);
   digitalWrite(L1, HIGH);
    digitalWrite(L2, HIGH);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, HIGH);
    
     Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);
    delay(500);
    
    if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  
 if (buttonState == HIGH) {
  for( uint32_t tStart = millis();  (millis()-tStart) < period55;  ){
  timing = millis(); 
  
 digitalWrite(L1, HIGH);
 digitalWrite(L2, HIGH);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, HIGH);

    Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);
    
      if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  delay(500);
 }
 
  for( uint32_t tStart = millis();  (millis()-tStart) < period5;  ){
  timing = millis(); 
  
   Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);
        if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
   if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  
 digitalWrite(L1, LOW);
    digitalWrite(L2, HIGH);
    digitalWrite(L3, LOW);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, LOW);

    delay(500);

 digitalWrite(L1, HIGH);
 digitalWrite(L2, LOW);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, LOW);
    digitalWrite(L5, HIGH);
    
    delay(500);
    
 }

 for( uint32_t tStart = millis();  (millis()-tStart) < period55;  ){
  timing = millis(); 
  
 digitalWrite(L1, HIGH);
 digitalWrite(L2, HIGH);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, HIGH);

    Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);
    
      if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  delay(500);
 }
 
 for( uint32_t tStart = millis();  (millis()-tStart) < period5;  ){
  timing = millis(); 
  
   Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);

      if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  
 digitalWrite(L1, LOW);
    digitalWrite(L2, HIGH);
    digitalWrite(L3, LOW);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, LOW);

    delay(500);

 digitalWrite(L1, HIGH);
 digitalWrite(L2, LOW);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, LOW);
    digitalWrite(L5, HIGH);
    
    delay(500);
    
 }

 for( uint32_t tStart = millis();  (millis()-tStart) < period55;  ){
  timing = millis(); 
  
 digitalWrite(L1, HIGH);
 digitalWrite(L2, HIGH);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, HIGH);

    Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);
    
      if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  delay(500);
 }

 for( uint32_t tStart = millis();  (millis()-tStart) < period5;  ){
  timing = millis(); 
  
   Serial.print("Luminoscity:"); Serial.print(raw); Serial.print(" "); Serial.print("Temperature,C°:"); Serial.print(dht.temperature_C); Serial.print(" "); Serial.print("Humidity,%:"); Serial.println(dht.humidity);

      if ((raw <= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw <= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  if ((raw >= 500) || (dht.humidity <= 80.00)){
    digitalWrite(LED_RED, LOW);
  }
  
 if ((raw >= 500) || (dht.humidity >= 80.00)){
    digitalWrite(LED_RED, HIGH);
  }
  
 digitalWrite(L1, LOW);
    digitalWrite(L2, HIGH);
    digitalWrite(L3, LOW);
    digitalWrite(L4, HIGH);
    digitalWrite(L5, LOW);

    delay(500);

 digitalWrite(L1, HIGH);
 digitalWrite(L2, LOW);
    digitalWrite(L3, HIGH);
    digitalWrite(L4, LOW);
    digitalWrite(L5, HIGH);
    
    delay(500);
    
 }
 }
}

Credits

Diana Khalipina

22 projects • 93 followers

Integrating Web Accessibility in Healthcare Tech | Web Developer & Bioengineering Specialist in Paris | MSc in Biomedical Engineering

Eye Care Kit

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Circuit diagram for eye care kit

Code

Eye care kit

Credits

Diana Khalipina

Comments

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Eye Care Kit

Eye Care Kit

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Circuit diagram for eye care kit

Code

Eye care kit

Credits

Diana Khalipina

Comments

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