482196126 by Unknown

Author:Unknown
Language: eng
Format: epub

Electric Diagram

Components:

 Raspberry Pi Zero W

 DHT11 Sensor Humidity Sensor

 BMP085 Barometric Pressure Sensor

 Resisitor 4k7

4.3 Software

The project was made with Python version 2.7.13 and the source code is as follows.

I also add comments that explain what the code is doing.

//******************************

# Script will be used to read sensor data and then post the IoT Thinkspeak

# Read Temperature & Humidity using DHT11 sensor attached to Raspberry PI Zero W

# Read Pressure and Altitude using BMP085 sensor attached to Raspberry PI Zero W

# Program posts these values to a thingspeak channel

# Import all the libraries we need to run

import sys

import RPi.GPIO as GPIO

import os

from time import sleep

import Adafruit_DHT

import urllib2

import Adafruit_BMP.BMP085 as BMP085

DEBUG = 1

# Define GPIO pin to which DHT11 is connected

DHTpin = 4

#Setup our API and delay

myAPI = " GET_YOUR_KEY" # API Key from thingSpeak.com channel myDelay = 15 #how many seconds between posting data

GPIO.setmode(GPIO.BCM)

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