Counting and taking temperatures for You

Counting people coming in and out of a room with a traffic light system and taking their temperatures

May 1, 2021

•

1843 views

•

0 respects

Components and supplies

Rotary Potentiometer, 10 kohm

Breadboard (generic)

Female/Female Jumper Wires

Buzzer

MLX90614 non-contact sensor 3.3 V

PIR Sensor, 7 m

Male/Female Jumper Wires

Arduino UNO

5 mm LED: Green

Resistor 100 ohm

Resistor 221 ohm

5 mm LED: Red

RGB LCD Shield Kit, 16x2 Character Display

Tools and machines

Soldering iron (generic)

Project description

Code

Counting for You

arduino

Read Understand and make it your own

1#include <LiquidCrystal.h>
2#include <Wire.h>
3#include <Adafruit_MLX90614.h>
4int  in = 15;// Analog Pin A1 Signal for Sensor 
5int inpr = 16;// Analog Pin A2 Power  for Sensor
6int out = 14;// Analog Pin A0 Signal for Sensor
7int outpr = 17;//  Analog Pin A3 Power for Sensor
8int ppl = 0;// declare ppl false
9int buzzer  = 9;
10LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
11bool pplin = 0;// false 
12bool  pplout = 0;// false
13int temp = 0;// temp starting point 
14const float alert_temp  = 38.0;// alarm setpoint
15Adafruit_MLX90614 mlx = Adafruit_MLX90614();
16void  setup() {
17  Serial.begin(9600);
18  Serial.println("B00123587 Project");  ///  display on serial monitor
19  pinMode(15, INPUT);// Analog Pin A1 Signal for Sensor
20  pinMode(14, INPUT);// Analog Pin A0 Signal for Sensor
21  pinMode(16, OUTPUT);//  Analog Pin A2 Power for Sensor
22  pinMode(17, OUTPUT);// Analog Pin A3 Power for  Sensor
23  pinMode(6, OUTPUT);//LED entry
24  pinMode(7, OUTPUT);//LED no entry
25  lcd.begin(16, 2);
26  mlx.begin();  
27}
28
29void loop() {
30  digitalWrite(outpr,  HIGH);// Analog Pin A2 Power for Sensor High
31  digitalWrite(inpr, HIGH);// Analog  Pin A3 Power for Sensor High
32  pplin = digitalRead(in); //people in
33  pplout  = digitalRead(out);//people out
34  if (pplin == 1){ // pplin true 
35    ppl--;//changes  value
36    delay(500);
37  }
38  else if (pplout == 1){//pplout true
39    ppl++  ;//changes value
40    delay(500);
41  }
42  ppl = constrain(ppl, 0, 50);//sensor  range
43  lcd.setCursor(0, 0);//what LCD has to do
44  lcd.print("People In:");
45  lcd.setCursor(11, 0);//what LCD has to do
46  lcd.print(ppl);
47  if (ppl >=  5){//cut off point for entry
48     lcd.setCursor(0, 1);//what LCD has to do
49     lcd.print("PLEASE   WAIT");
50    digitalWrite(6, LOW);//Green LED off
51    digitalWrite(7, HIGH);//Red LED on
52    }
53    if (ppl >=6){//pplout true
54    tone(buzzer,450);///HZ
55     delay(500);
56     noTone(buzzer);
57     delay(500);
58    
59    }
60    
61  if (ppl <= 4){// less than 4 ok for entry
62     lcd.setCursor(0,  1);// What LCD has to do
63     lcd.print("Safe to enter");
64    digitalWrite(7,  LOW);//Green LED on
65    digitalWrite(6, HIGH);// Red LED off
66    noTone(buzzer);  ////
67     delay(500);
68  }
69   lcd.setCursor(14,0);// display section of  temperature 
70  Serial.print(mlx.readObjectTempC());//read the sensor
71  Serial.println("*C");//  print in degrees celsius
72  lcd.print(mlx.readObjectTempC());// print temp on  screen
73  Serial.println();
74  delay(500);
75  temp = (mlx.readObjectTempC());
76   if (temp >= alert_temp){/// buzzer alarm if greater than 38 degrees 
77   tone(buzzer,450);///HZ
78     delay(500);
79     noTone(buzzer);
80     delay(2000);
81   } 
82}

#include <LiquidCrystal.h>
#include <Wire.h>
#include <Adafruit_MLX90614.h>
int  in = 15;// Analog Pin A1 Signal for Sensor 
int inpr = 16;// Analog Pin A2 Power  for Sensor
int out = 14;// Analog Pin A0 Signal for Sensor
int outpr = 17;//  Analog Pin A3 Power for Sensor
int ppl = 0;// declare ppl false
int buzzer  = 9;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
bool pplin = 0;// false 
bool  pplout = 0;// false
int temp = 0;// temp starting point 
const float alert_temp  = 38.0;// alarm setpoint
Adafruit_MLX90614 mlx = Adafruit_MLX90614();
void  setup() {
  Serial.begin(9600);
  Serial.println("B00123587 Project");  ///  display on serial monitor
  pinMode(15, INPUT);// Analog Pin A1 Signal for Sensor
  pinMode(14, INPUT);// Analog Pin A0 Signal for Sensor
  pinMode(16, OUTPUT);//  Analog Pin A2 Power for Sensor
  pinMode(17, OUTPUT);// Analog Pin A3 Power for  Sensor
  pinMode(6, OUTPUT);//LED entry
  pinMode(7, OUTPUT);//LED no entry
  lcd.begin(16, 2);
  mlx.begin();  
}

void loop() {
  digitalWrite(outpr,  HIGH);// Analog Pin A2 Power for Sensor High
  digitalWrite(inpr, HIGH);// Analog  Pin A3 Power for Sensor High
  pplin = digitalRead(in); //people in
  pplout  = digitalRead(out);//people out
  if (pplin == 1){ // pplin true 
    ppl--;//changes  value
    delay(500);
  }
  else if (pplout == 1){//pplout true
    ppl++  ;//changes value
    delay(500);
  }
  ppl = constrain(ppl, 0, 50);//sensor  range
  lcd.setCursor(0, 0);//what LCD has to do
  lcd.print("People In:");
  lcd.setCursor(11, 0);//what LCD has to do
  lcd.print(ppl);
  if (ppl >=  5){//cut off point for entry
     lcd.setCursor(0, 1);//what LCD has to do
     lcd.print("PLEASE   WAIT");
    digitalWrite(6, LOW);//Green LED off
    digitalWrite(7, HIGH);//Red LED on
    }
    if (ppl >=6){//pplout true
    tone(buzzer,450);///HZ
     delay(500);
     noTone(buzzer);
     delay(500);
    
    }
    
  if (ppl <= 4){// less than 4 ok for entry
     lcd.setCursor(0,  1);// What LCD has to do
     lcd.print("Safe to enter");
    digitalWrite(7,  LOW);//Green LED on
    digitalWrite(6, HIGH);// Red LED off
    noTone(buzzer);  ////
     delay(500);
  }
   lcd.setCursor(14,0);// display section of  temperature 
  Serial.print(mlx.readObjectTempC());//read the sensor
  Serial.println("*C");//  print in degrees celsius
  lcd.print(mlx.readObjectTempC());// print temp on  screen
  Serial.println();
  delay(500);
  temp = (mlx.readObjectTempC());
   if (temp >= alert_temp){/// buzzer alarm if greater than 38 degrees 
   tone(buzzer,450);///HZ
     delay(500);
     noTone(buzzer);
     delay(2000);
   } 
}

Counting for You

arduino

Read Understand and make it your own

1#include <LiquidCrystal.h>
2#include <Wire.h>
3#include <Adafruit_MLX90614.h>
4int   in = 15;// Analog Pin A1 Signal for Sensor 
5int inpr = 16;// Analog Pin A2 Power   for Sensor
6int out = 14;// Analog Pin A0 Signal for Sensor
7int outpr = 17;//   Analog Pin A3 Power for Sensor
8int ppl = 0;// declare ppl false
9int buzzer   = 9;
10LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
11bool pplin = 0;// false 
12bool   pplout = 0;// false
13int temp = 0;// temp starting point 
14const float alert_temp   = 38.0;// alarm setpoint
15Adafruit_MLX90614 mlx = Adafruit_MLX90614();
16void   setup() {
17  Serial.begin(9600);
18  Serial.println("B00123587 Project");  ///   display on serial monitor
19  pinMode(15, INPUT);// Analog Pin A1 Signal for Sensor
20   pinMode(14, INPUT);// Analog Pin A0 Signal for Sensor
21  pinMode(16, OUTPUT);//   Analog Pin A2 Power for Sensor
22  pinMode(17, OUTPUT);// Analog Pin A3 Power for   Sensor
23  pinMode(6, OUTPUT);//LED entry
24  pinMode(7, OUTPUT);//LED no entry
25   lcd.begin(16, 2);
26  mlx.begin();  
27}
28
29void loop() {
30  digitalWrite(outpr,   HIGH);// Analog Pin A2 Power for Sensor High
31  digitalWrite(inpr, HIGH);// Analog   Pin A3 Power for Sensor High
32  pplin = digitalRead(in); //people in
33  pplout   = digitalRead(out);//people out
34  if (pplin == 1){ // pplin true 
35    ppl--;//changes   value
36    delay(500);
37  }
38  else if (pplout == 1){//pplout true
39    ppl++   ;//changes value
40    delay(500);
41  }
42  ppl = constrain(ppl, 0, 50);//sensor   range
43  lcd.setCursor(0, 0);//what LCD has to do
44  lcd.print("People In:");
45   lcd.setCursor(11, 0);//what LCD has to do
46  lcd.print(ppl);
47  if (ppl >=   5){//cut off point for entry
48     lcd.setCursor(0, 1);//what LCD has to do
49      lcd.print("PLEASE   WAIT");
50    digitalWrite(6, LOW);//Green LED off
51     digitalWrite(7, HIGH);//Red LED on
52    }
53    if (ppl >=6){//pplout true
54     tone(buzzer,450);///HZ
55     delay(500);
56     noTone(buzzer);
57     delay(500);
58     
59    }
60    
61  if (ppl <= 4){// less than 4 ok for entry
62     lcd.setCursor(0,   1);// What LCD has to do
63     lcd.print("Safe to enter");
64    digitalWrite(7,   LOW);//Green LED on
65    digitalWrite(6, HIGH);// Red LED off
66    noTone(buzzer);   ////
67     delay(500);
68  }
69   lcd.setCursor(14,0);// display section of   temperature 
70  Serial.print(mlx.readObjectTempC());//read the sensor
71  Serial.println("*C");//   print in degrees celsius
72  lcd.print(mlx.readObjectTempC());// print temp on   screen
73  Serial.println();
74  delay(500);
75  temp = (mlx.readObjectTempC());
76    if (temp >= alert_temp){/// buzzer alarm if greater than 38 degrees 
77   tone(buzzer,450);///HZ
78      delay(500);
79     noTone(buzzer);
80     delay(2000);
81   } 
82}

#include <LiquidCrystal.h>
#include <Wire.h>
#include <Adafruit_MLX90614.h>
int   in = 15;// Analog Pin A1 Signal for Sensor 
int inpr = 16;// Analog Pin A2 Power   for Sensor
int out = 14;// Analog Pin A0 Signal for Sensor
int outpr = 17;//   Analog Pin A3 Power for Sensor
int ppl = 0;// declare ppl false
int buzzer   = 9;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
bool pplin = 0;// false 
bool   pplout = 0;// false
int temp = 0;// temp starting point 
const float alert_temp   = 38.0;// alarm setpoint
Adafruit_MLX90614 mlx = Adafruit_MLX90614();
void   setup() {
  Serial.begin(9600);
  Serial.println("B00123587 Project");  ///   display on serial monitor
  pinMode(15, INPUT);// Analog Pin A1 Signal for Sensor
   pinMode(14, INPUT);// Analog Pin A0 Signal for Sensor
  pinMode(16, OUTPUT);//   Analog Pin A2 Power for Sensor
  pinMode(17, OUTPUT);// Analog Pin A3 Power for   Sensor
  pinMode(6, OUTPUT);//LED entry
  pinMode(7, OUTPUT);//LED no entry
   lcd.begin(16, 2);
  mlx.begin();  
}

void loop() {
  digitalWrite(outpr,   HIGH);// Analog Pin A2 Power for Sensor High
  digitalWrite(inpr, HIGH);// Analog   Pin A3 Power for Sensor High
  pplin = digitalRead(in); //people in
  pplout   = digitalRead(out);//people out
  if (pplin == 1){ // pplin true 
    ppl--;//changes   value
    delay(500);
  }
  else if (pplout == 1){//pplout true
    ppl++   ;//changes value
    delay(500);
  }
  ppl = constrain(ppl, 0, 50);//sensor   range
  lcd.setCursor(0, 0);//what LCD has to do
  lcd.print("People In:");
   lcd.setCursor(11, 0);//what LCD has to do
  lcd.print(ppl);
  if (ppl >=   5){//cut off point for entry
     lcd.setCursor(0, 1);//what LCD has to do
      lcd.print("PLEASE   WAIT");
    digitalWrite(6, LOW);//Green LED off
     digitalWrite(7, HIGH);//Red LED on
    }
    if (ppl >=6){//pplout true
     tone(buzzer,450);///HZ
     delay(500);
     noTone(buzzer);
     delay(500);
     
    }
    
  if (ppl <= 4){// less than 4 ok for entry
     lcd.setCursor(0,   1);// What LCD has to do
     lcd.print("Safe to enter");
    digitalWrite(7,   LOW);//Green LED on
    digitalWrite(6, HIGH);// Red LED off
    noTone(buzzer);   ////
     delay(500);
  }
   lcd.setCursor(14,0);// display section of   temperature 
  Serial.print(mlx.readObjectTempC());//read the sensor
  Serial.println("*C");//   print in degrees celsius
  lcd.print(mlx.readObjectTempC());// print temp on   screen
  Serial.println();
  delay(500);
  temp = (mlx.readObjectTempC());
    if (temp >= alert_temp){/// buzzer alarm if greater than 38 degrees 
   tone(buzzer,450);///HZ
      delay(500);
     noTone(buzzer);
     delay(2000);
   } 
}

Downloadable files

Add this to the Tinker Cad diagram and get it working with Code

Counter on TinkerCad

this is a diagram of the counter minus the MLX temp sensor wired in

Counter on TinkerCad

Comments

Only logged in users can leave comments

Boyler88

0 Followers

•

0 Projects

Intro

Trademarks & CopyrightsWhistleblowingDigital Services ActTerms of ServicePrivacy PolicySecurityCookie Settings

Report content