Systematic IoT Development and Raspberry Pi Integration

Posted by on Mar 5, 2026 in Communications Electronic Engineering | 0 comments

IoT Design Methodology

IoT Design Methodology is a systematic approach used to design, develop, and deploy an IoT system. It ensures that the system is scalable, secure, and meets user needs.

Step-by-Step IoT Design Methodology

1. Purpose Specification

Defines why the IoT system is needed. It identifies:

  • Problem to be solved
  • Target users
  • Expected outcomes

Example: In a Smart City, the purpose may be reducing traffic congestion and saving fuel.

2. Process Specification

Describes how the system works step by

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Industrial Automation Evolution: From DCS to IoT and SoS

Posted by on Feb 28, 2026 in Communications Electronic Engineering | 0 comments

Evolution of Industrial Automation

This section explains the evolution of industrial automation from traditional systems (DCS and SCADA) to modern paradigms like IoT and System-of-Systems (SoS), highlighting major limitations and advancements.

1. DCS and SCADA (Earlier Systems)

  • Used for monitoring and controlling machines inside a plant.
  • Worked in a fixed, hierarchical structure.
  • Systems were vendor-specific and tightly connected.
  • Hard to integrate with other systems.
  • Not flexible for frequent changes
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Electronic Clipper Circuits and Rectifier Comparisons

Posted by on Feb 19, 2026 in Communications Electronic Engineering | 0 comments

1. Define Clipper, and explain clipping at two independent levels?

A.A clipper (also known as a limiter) is an electronic circuit used to remove or “clip” portions

Of a signal that exceed a certain threshold voltage level without distorting the remaining

Part of the waveform. Clippers are used in various applications, such as signal conditioning,

Waveform shaping, and protecting circuits from voltage spikes

Clipping at Two Independent Levels:


Clipping at two independent levels involves limiting the signal

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Internet of Things Architecture, Protocols and Smart City Apps

Posted by on Feb 16, 2026 in Communications Electronic Engineering | 0 comments

Module 1 – Introduction to IoT (ECT 458)

IoT: Global network of physical/virtual “things” with unique identities, exchanging data via interoperable protocols. Enables data sensing, collection, sharing, and intelligent actions with context awareness.

Characteristics

  • Dynamic / Self-adapting — responds to context changes (e.g., day/night cameras).
  • Self-configuring — automatic updates and network configuration.
  • Interoperable protocols — supports multiple standards.
  • Unique identity — IP, URI, or
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Internet of Things (IoT): Evolution, Architecture & Use Cases

Posted by on Feb 2, 2026 in Communications Electronic Engineering | 0 comments

IoT Definition, Evolution and Business Scope

m1) define IOT , explain in detail the evolution of IOT and its business scope with suitable example?

Internet of Things (IoT) means connecting physical devices like sensors, machines, and appliances to the internet so they can collect data, communicate with each other, and operate automatically with minimal human involvement.

Evolution of the Internet and IoT

Pre-Internet: Devices worked independently and manually with no internet connection. Example: calculators,

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IoT Protocols, Data Visualization, and Network Architectures

Posted by on Jan 27, 2026 in Communications Electronic Engineering | 0 comments

IEEE 802.15.4 and Key IoT Protocols

IEEE 802.15.4 is a low-power, low-data-rate wireless standard used for IoT sensor networks.

Three main protocols are built upon this standard:

1. Zigbee

Zigbee is a low-power, low-cost wireless mesh protocol for smart homes and IoT automation.

Advantages

  • Supports mesh networking → long-range coverage
  • Very low power consumption
  • Cheap modules
  • Reliable for home automation

Disadvantages

  • Low data rate
  • Not suitable for high-speed applications
  • Limited range without mesh

2. 6LoWPAN

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