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INTERNET OF THINGS
What is IoT ?
•Internet of Things is the concept of
connecting any device to the
Internet and to other connected
devices.
•The IoT is a giant network of
connected things and people – all of
which collect and share data.
How does IoT work?
• Devices and objects with built in sensors are connected to
an Internet of Things platform.
• Integrates data from the different devices and applies
analytics.
• Share the most valuable data.
Application of IoT
•Wearables
•Smart City
•Connected car
•Smart home
Characteristics of IoT
Project
• Electronic device built forms the basis of smart buildings.
• The device will work on smart lights in a smart building and the
system will send data from the device to the cloud for analysis
• The device developed can sense the number of occupants in the
room with the help of PIR sensors and automatically switch the
lights ON/ OFF based on occupancy.
Equipment used
•Arduino Uno
•ESP8266
•PIR Sensors
•Relay Driver Modules
• Buzzer
• Bulb Holders
• Breadboard & Wire
ARDUINO
Arduino is an open source electronics prototyping platform based on
flexible, easy-to-use hardware and software.
ESP8266
The ESP8266 is a low-cost Wi-Fi microchip with
full TCP/IP stack and microcontroller capability
produced by Shanghai-based Chinese manufacturer
Espressif Systems.
Communication to ESP8266
using commands
• ESP8266, in its default configuration, boots up into the serial
modem mode. In this mode it communicate using a set of AT
commands.
• AT commands are instructions used to control a modem. AT is the
abbreviation of ATtention
AT Commands
Each command can have up to 4 variants changing the function of it
PIR Sensor
A passive infrared sensor (PIR sensor) is an electronic sensor that
measures infrared (IR) light radiating from objects in its field of view
Device Layout
Connections
ESP8266 Arduino UNO
Vcc 3.3V
CH_PD 3.3V
GND GND
RX Pin 4
TX Pin 3
PIR Sensors Arduino UNO
Vcc 5V
GND GND
OUT_1 Pin 9
OUT_2 Pin 10
Data Collected
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Realizing Internet of things using Block-Chain Technology

  • 2. What is IoT ? •Internet of Things is the concept of connecting any device to the Internet and to other connected devices. •The IoT is a giant network of connected things and people – all of which collect and share data.
  • 3. How does IoT work? • Devices and objects with built in sensors are connected to an Internet of Things platform. • Integrates data from the different devices and applies analytics. • Share the most valuable data.
  • 4. Application of IoT •Wearables •Smart City •Connected car •Smart home
  • 6. Project • Electronic device built forms the basis of smart buildings. • The device will work on smart lights in a smart building and the system will send data from the device to the cloud for analysis • The device developed can sense the number of occupants in the room with the help of PIR sensors and automatically switch the lights ON/ OFF based on occupancy.
  • 7. Equipment used •Arduino Uno •ESP8266 •PIR Sensors •Relay Driver Modules • Buzzer • Bulb Holders • Breadboard & Wire
  • 8. ARDUINO Arduino is an open source electronics prototyping platform based on flexible, easy-to-use hardware and software.
  • 9. ESP8266 The ESP8266 is a low-cost Wi-Fi microchip with full TCP/IP stack and microcontroller capability produced by Shanghai-based Chinese manufacturer Espressif Systems.
  • 10. Communication to ESP8266 using commands • ESP8266, in its default configuration, boots up into the serial modem mode. In this mode it communicate using a set of AT commands. • AT commands are instructions used to control a modem. AT is the abbreviation of ATtention
  • 11. AT Commands Each command can have up to 4 variants changing the function of it
  • 12. PIR Sensor A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view
  • 14. Connections ESP8266 Arduino UNO Vcc 3.3V CH_PD 3.3V GND GND RX Pin 4 TX Pin 3 PIR Sensors Arduino UNO Vcc 5V GND GND OUT_1 Pin 9 OUT_2 Pin 10
  翻译: