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Internet of Things

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  1. Lesson-1-> Introduction to IOT
    4 Topics
    |
    1 Quiz
  2. Lesson-2-> Introduction to Node MCU & Arduino IDE
    6 Topics
    |
    1 Quiz
  3. Activity-1-> LED blink using Node MCU & Arduino IDE
    4 Topics
    |
    1 Quiz
  4. Activity-2-> Controlling of LED using Web Server
    5 Topics
    |
    1 Quiz
  5. Activity-3-> Interfacing of Ultrasonic sensor with Node MCU
    4 Topics
    |
    1 Quiz
  6. Activity-4-> LED ON/OFF using Google Assistance
    8 Topics
    |
    1 Quiz
  7. Chapter-3->Introduction to ThingSpeak
    4 Topics
  8. Activity-5 –> Air quality Monitoring using NODE MCU
    6 Topics
    |
    1 Quiz
  9. Activity-6 –> IOT based car parking system
    6 Topics
    |
    1 Quiz
  10. Activity-7 –> IOT based motion detector using Node MCU
    6 Topics
    |
    1 Quiz
  11. Activity-8-> IOT based Automatic gardening System
    5 Topics
    |
    1 Quiz

Quizzes

Internet of Things Activity-7 –> IOT based motion detector using Node MCU 7.3 Circuit Connection of PIR sensor with Node MCU
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Lesson 10, Topic 3
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7.3 Circuit Connection of PIR sensor with Node MCU

23/09/2021
Lesson Progress
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  1. Collect all the components required :
  • Node MCU
  • LED
  • Jumper wires
  • Breadboard
  • Resistor
  • PIR sensor
  • A smartphone with blynk app

2.  Now, Place the LED on the breadboard.As you are aware Led have two pins:

  • Anode (Longer leg)
  • Cathode (Shorter leg).

Place the led in the component rail and remember it is vertically connected,so place the led as shown below:

3. Now, connect the PIR sensor with Node MCU,

  • Connect the VCC (5V) of PIR sensor with Vin pin of NODE MCU.
  • Connect the GND pin of PIR sensor with Ground(GND or G) pin of NODE MCU
  • Connect the Output pin of PIR sensor with D5 pin of NODE MCU.

4, Then,connect anode leg(Longer) of led to D1 pin of NODE MCU via resistor and connect the cathode (shorter leg) to G pin of NODE MCU.

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