ITSummEL

Introduction

Story of our works in IoT Academy in ITRC at Summer 2016.

• Parham Alvani
• Saman Fekri
• Ali Irani
• Noor Nakhaei

Useful Links

• Reading Analogue Sensors With One GPIO Pin
• Useful Fritzing Components
• Windows 10 on RPi
• Basic Usage of RPi GPIO
• RPi GPIO

RPi Pinout

For detail of RPi pins and it's functionalities see this

RPi Configuration

For installing raspian on RPi (Automated):

• Donwload Raspbian here
• Install Raspbian on SDcard with unzip -p 2016-03-18-raspbian-jessie.zip | sudo dd of=/dev/mmcblk0 bs=32M

After installation if you want you can grow root partition size:

• Run sudo fdisk /dev/mmcblk0
• Check the partition number you wish to delete with the p.
• Use the option d to delete a partition. If there is more than one, fdisk will prompt for which one to delete.
• Use the option n to create a new partition. Follow the prompts and ensure you allow enough space for any future resizing that is needed. It is possible to specify a set, human-readable size instead of using sectors if this is preferred.
• Check the partition table to ensure that the partitions are created as required using the p option.
• Write the changes with the w option when you are sure they are correct.
• Run fsck on the partition. sudo e2fsck /dev/mmcblk0p2
• Resize partition file system. sudo resize2fs /dev/mmcblk0p2

RPi NMap Finding

sudo nmap -sP subnet

Examples :)

DHT + Python

For using DHT sensor with your RPi and python you must do the following things:

1. Install GPIO library:

sudo apt-get install python-dev python-rpi.gpio

2. Get dht11.py file and put it next to your project. You can download it form here, after downloading zip file of this project use dht11.py and remove other files.

3. After all you can write your code :)

import RPi.GPIO as GPIO
import dht11

# initialize GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.cleanup()

# read data using pin 14
# [you connect data pin of dht sensor to GPIO13 of RPi]
instance = dht11.DHT11(pin = 14)
result = instance.read()

if result.is_valid():
    print("Temperature: %d C" % result.temperature)
    print("Humidity: %d %%" % result.humidity)
else:
    print("Error: %d" % result.error_code)

Microphone

For using microphone we must use ADC for analog to digital converting, we use MCP3208 chip as our ADC, MCP3208 has SPI interface and we connect it to our RPi use follwing diagram.

Purpose	Color
VCC	Red
Ground	Black
SCLK	Orange
CS	Yellow
MISO	Green
MOSI	Blue

After all you can find some good examples in /mic/.