Python + PIR-Sensor + Arduino = Display Privacy at Work

If somebody approaches your computer or the sensor (PIR), the programm closes automatically any application, so nobody sees what you do

Jan 6, 2021

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python

privacy

pir

Devices & Components

Arduino Uno Rev3

PIR Sensor, 7 m

Software & Tools

Arduino IDE

Python (IDLE)

Project description

Code

Arduino Code

arduino

1int ledPin = 13;  // LED on Pin 13 of Arduino
2int pirPin = 7; // Input  for HC-S501(PIR-sensor)
3int pirValue; // Place to store read PIR Value
4
5void  setup() {
6  pinMode(ledPin, OUTPUT);
7  pinMode(pirPin, INPUT);
8  digitalWrite(ledPin,  LOW);
9  Serial.begin(9600);
10}
11
12void loop() {
13    pirValue = digitalRead(pirPin);
14    digitalWrite(ledPin, pirValue);
15    if(pirValue==HIGH){
16      Serial.println("1");
17      pirValue=0;
18    }
19}
20
21

int ledPin = 13;  // LED on Pin 13 of Arduino
int pirPin = 7; // Input  for HC-S501(PIR-sensor)
int pirValue; // Place to store read PIR Value

void  setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(pirPin, INPUT);
  digitalWrite(ledPin,  LOW);
  Serial.begin(9600);
}

void loop() {
    pirValue = digitalRead(pirPin);
    digitalWrite(ledPin, pirValue);
    if(pirValue==HIGH){
      Serial.println("1");
      pirValue=0;
    }
}

Arduino Code

arduino

1int ledPin = 13;  // LED on Pin 13 of Arduino
2int pirPin = 7; // Input
3  for HC-S501(PIR-sensor)
4int pirValue; // Place to store read PIR Value
5
6void
7  setup() {
8  pinMode(ledPin, OUTPUT);
9  pinMode(pirPin, INPUT);
10  digitalWrite(ledPin,
11  LOW);
12  Serial.begin(9600);
13}
14
15void loop() {
16    pirValue = digitalRead(pirPin);
17
18    digitalWrite(ledPin, pirValue);
19    if(pirValue==HIGH){
20      Serial.println("1");
21
22      pirValue=0;
23    }
24}
25
26

int ledPin = 13;  // LED on Pin 13 of Arduino
int pirPin = 7; // Input
  for HC-S501(PIR-sensor)
int pirValue; // Place to store read PIR Value

void
  setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(pirPin, INPUT);
  digitalWrite(ledPin,
  LOW);
  Serial.begin(9600);
}

void loop() {
    pirValue = digitalRead(pirPin);

    digitalWrite(ledPin, pirValue);
    if(pirValue==HIGH){
      Serial.println("1");

      pirValue=0;
    }
}

Python

python

Make sure, you have the right port selected. You have to import the libaries first. To do this go to cmd and enter "pip install serial". After this you also have to import the other libaries! ("pip install time"; "pip install os")

1#Libaries
2import serial         #to install type 'pip install serial'  in cmd
3import time           #to install type 'pip install time' in cmd
4import  os             #to install type 'pip install os' in cmd
5#import pyttsx3    #not  necessary only if you want(for sound)
6
7
8
9#classes
10def read():
11    ArduinoSerial = serial.Serial('com3',9600) #CHANGE IF NECESARRY!
12    time.sleep(2)
13    line = ArduinoSerial.readline()
14    line = line.replace(b'\
\
15',b'')
16    line = line.decode("utf-8")
17    line = int(line)
18    if (line==1):
19        close()
20        #talk() 
21        
22def close():
23    try:
24        print("Worked!")
25        os.system('TASKKILL /F /IM ^chrome.exe') #application  which closes
26    except Exception as e:
27        print (e) 
28        
29def  wait(): #to prevent mailfunctions
30    s=20
31    for n in range(0,20):
32        s=s-1
33        print("Please wait")
34        print("Ready in: ",s)
35        time.sleep(1)
36        os.system('cls')  #deletes content on cmd (not in python shell)
37    read()
38    
39#def talk():      #delete the hashtag if it should talk
40#    saythis  = pyttsx3.init()
41#    saythis.say("Oh shit")
42#    saythis.runAndWait() 
43
44
45
46#to  start the programm
47wait()

#Libaries
import serial         #to install type 'pip install serial'  in cmd
import time           #to install type 'pip install time' in cmd
import  os             #to install type 'pip install os' in cmd
#import pyttsx3    #not  necessary only if you want(for sound)



#classes
def read():
    ArduinoSerial = serial.Serial('com3',9600) #CHANGE IF NECESARRY!
    time.sleep(2)
    line = ArduinoSerial.readline()
    line = line.replace(b'\
\
',b'')
    line = line.decode("utf-8")
    line = int(line)
    if (line==1):
        close()
        #talk() 
        
def close():
    try:
        print("Worked!")
        os.system('TASKKILL /F /IM ^chrome.exe') #application  which closes
    except Exception as e:
        print (e) 
        
def  wait(): #to prevent mailfunctions
    s=20
    for n in range(0,20):
        s=s-1
        print("Please wait")
        print("Ready in: ",s)
        time.sleep(1)
        os.system('cls')  #deletes content on cmd (not in python shell)
    read()
    
#def talk():      #delete the hashtag if it should talk
#    saythis  = pyttsx3.init()
#    saythis.say("Oh shit")
#    saythis.runAndWait() 



#to  start the programm
wait()

Downloadable files

circuit diagram

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