Raspberry pi & Arduino programs

 

Raspberry pi programs:

# led interfacing raspberry pi

# to study and understand led interfacing raspberry pi

from RPi.GPIO import *

import time

setwarnings(False)

setmode(BCM)

setup(4,OUT)

while True :

    output(4,HIGH)

    time.sleep(2)

    output(4,LOW)

    time.sleep(3)

   

# switch interfacing raspberry pi

# to study and understand interfacing switch connect to the raspberry pi

from RPi.GPIO import *

import time

setwarnings(False)

setmode(BCM)

setup(4,OUT)

setup(17,IN)

while True :

    button_state=input(17)

    if button_state == False :

        output(4,False)

        print("Button pressed...")

        while input(17) == False :

            time.sleep(2)

    else :

        output(4,True)

#temperature sensor(LM35)

#to study and understand concept of interfacing temperature sendor (LM35)

#   to raspberry pi

import Adafruit_ADS1x15

import time

adc=Adafruit_ADS1x15.ADS1115()

GAIN = 1

while True :

    values=[0]*1

    for i in range(1) :

        values[i]=adc.read_adc(i,gain=GAIN)

        temp=values[i]*0.125

        temp=temp/10

    print("analog o/p={0:>6}".format(*values))

    printf("temp. in C={0:>6}".format(temp))

    time.sleep(2)

#LDR interfacing arduino

#to study and understand concept of interfaong photocell sensor (ldr)

#  to raspberry pi

import Adafruit_ADS1x15

import time

adc=Adafruit_ADS1x15.ADS1115()

GAIN = 1

while True :

    values=[0]*1

    for i in range(1) :

        values[i]=adc.read_adc(i,gain=GAIN)

        if values[i]>300 :

            print("dark condition")

       

        else :

            print("light condition")

   

    time.sleep(2)

#PIR sensor interfacing raspberry pi

# to study and understand concept of interfacing passive infra-red (pir)

#  sensor to raspberry pi

from RPi.GPIO import *

import time

setmode(BCM)

setup(4,OUT)

setup(17,IN)

while True :

    button_state=input(17)

    if button_state==True :

        output(4,False)

        print("motion detected..")

        while input(17) == True :

            time.sleep(2)

    else :

        output(4,True)

Arduino programs:

//LED interfacing ARDUINO

//to study and understand the concept of led interfacing arduino

 int LED1=13;

 int LED2=12;

 int LED3=11;

  void setup()

   {

     pinMode(LED1,OUTPUT);

     pinMode(LED2,OUTPUT);

     pinMode(LED3,OUTPUT);

   }

  void loop()

   {

     digitalWrite(LED1,HIGH);

       delay(200);

     digitalWrite(LED2,HIGH);

       delay(200);

     digitalWrite(LED3,HIGH);

       delay(200);

     digitalWrite(LED1,LOW);

       delay(300);

     digitalWrite(LED2,LOW);

       delay(300);

     digitalWrite(LED3,LOW);

       delay(300);

   }

//TEMPERATURE &HUMIDITY SENSOR

// to study and understand concept of temperature and humidity sensor

interfacing arduino

 #include<dht.h>

  dth=DHT;

  #define DHT11_PIN 3

  GAIN=1;

   void setup()

    {

        Serial.begin(9600);

    }

   void loop()

    {

      int chk=DHT.read11(DHT11_PIN);

      Serial.println("humidity");

      Serial.println(DHT.humidity,1);

      Serial.println("temperature");

      Serial.println(DHT.temperature,1);

      delay(5000);

    }

Python program:

# conversion of decimal

# conversion of decimal to binary,octal,hexadecimal equivalent no

#   using python programming

num=int(input("hey plz enter the decimal no:"))

print("decimal to binary conversion is:",bin(num))

print("decimal to octal conversion is:",oct(num))

print("decimal to hexadecimal conversion is:",hex(num))

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