ЁЯМР G.C.E. A/L ICT – Competency 11.1 | IoT Complete Notes
рооுро┤ுрооைропாрой IoT, Embedded Systems, Arduino, Sensors, Actuators Notes | Key Terms, Exam Points, Structured Questions & Answers, Master Formula, Last-Minute Revision Sheet
⚡ Quick Answer | What is Competency 11.1 about? (AEO Featured Snippet)
Competency 11.1 роОрой்рокродு Internet of Things (IoT) рооро▒்ро▒ுроо் Embedded Systems-рой் роЕроЯிрок்рокроЯை building blocks-роР роХро▒்ро▒ுрод்родро░ுроХிро▒родு. рооாрогро╡ро░்роХро│் Sensors (LDR, Temperature, Reed switch), Microcontrollers (Arduino), рооро▒்ро▒ுроо் Actuators (LED, Fan, Buzzer) рокропрой்рокроЯுрод்родி real-world problems-роХ்роХு solutions-роР роЙро░ுро╡ாроХ்роХுро╡родை роЗродு роЙро│்ро│роЯроХ்роХுроХிро▒родு. Master Formula: Real World → Sensor → Input → Microcontroller → Decision → Output → Actuator → Physical Action.
ЁЯФд Section 46 – Key Terms (Tamil + English)
46. рооுроХ்роХிроп Terms – Tamil + English Glossary ▼
роЗрои்род chapter-ро▓் ро╡ро░ுроо் роЕройைрод்родு technical terms-роо் роЗроЩ்роХே Tamil + English-ро▓் родொроХுроХ்роХрок்рокроЯ்роЯுро│்ро│рой. Exam-ро▓் роЗро░ு рооொро┤ிроХро│ிро▓ுроо் роОро┤ுродрод் родெро░ிрои்родிро░ுроХ்роХ ро╡ேрог்роЯுроо்.
| English Term | родрооிро┤் роЕро░்род்родроо் | Category |
|---|---|---|
| Embedded System | роЙроЯ்рокொродிроХ்роХрок்рокроЯ்роЯ роЕрооைрок்рокு | Concept |
| Development Board | рооேроо்рокாроЯ்роЯு рокро▓роХை | Hardware |
| Microcontroller | роиுрог்роХроЯ்роЯுрок்рокроЯுрод்родி | Hardware |
| Microprocessor | роиுрог்роЪெропро▓ி | Hardware |
| Sensor | роЙрогро░்роХро░ுро╡ி | Input |
| Actuator | роЪெропро▓்рокроЯுрод்родி | Output |
| Analog Input | роТрод்родிроЪைро╡ு роЙро│்ро│ீроЯு | Signal Type |
| Digital Input | роЗро▓роХ்роХ роЙро│்ро│ீроЯு | Signal Type |
| Digital Output | роЗро▓роХ்роХ ро╡ெро│ிропீроЯு | Signal Type |
| IDE | роТро░ுроЩ்роХிрогைрои்род рооேроо்рокாроЯ்роЯு роЪூро┤ро▓் | Software |
| Compiler | родொроХுрок்рокி | Software |
| Code Editor | роиிро░ро▓் родொроХுрок்рокி/роОро┤ுрод்родி | Software |
| Programmer | роиிро░ро▓் роПро▒்ро▒ுроо் роХро░ுро╡ி/рооுро▒ை | Software |
| Reset | рооீро│рооைрок்рокு | Control |
| Power Supply | рооிрой்роЪாро░ ро╡ро┤роЩ்роХро▓் | Hardware |
| Receive (RX) | рокெро▒ுродро▓் | Communication |
| Transmit (TX) | роЕройுрок்рокுродро▓் | Communication |
| LDR | роТро│ி роЪாро░்рои்род рооிрой்родроЯை | Sensor |
| Reed Switch | роХாрои்родрод்родாро▓் роЗропроЩ்роХுроо் switch | Sensor |
| Physical Computing | рокௌродிроХ роХрогிройிропிропро▓் | Concept |
⭐ Section 47 – Most Important Exam Points
47. рооிроХро╡ுроо் рооுроХ்роХிропрооாрой Exam Points ▼
роЗрои்род chapter-роР рокроЯிроХ்роХுроо்рокோродு роХீро┤ே роЙро│்ро│ро╡ро▒்ро▒ை рооройрок்рокாроЯрооாроХ роороЯ்роЯுроо் роЕро▓்ро▓ாрооро▓் concept-роЖроХро╡ுроо் родெро░ிрои்родிро░ுроХ்роХ ро╡ேрог்роЯுроо்.
A. Development Boards Examples
Arduino Raspberry Pi Micro:bit
B. Arduino Features
Analog Input Digital Input Microcontroller Digital Output RX/TX USB Power Reset
C. RX/TX
RX = Receive (рокெро▒ுродро▓்)
TX = Transmit (роЕройுрок்рокுродро▓்)
D. IDE Components
Code Editor + Compiler + Programmer/Upload facility
рооூрой்ро▒ுроо் роЪேро░்рои்род software environment.
E. Applications
LED control LDR-based auto light Temperature fan Reed-switch door
F. Basic Architecture
Input → Processing → Output
роОрои்род IoT system-роХ்роХாрой universal model.
G. Important Components
Sensor → Input
Microcontroller → Processing
Actuator/Output → Action
H. Signal Types
Analog = continuous values
Digital = discrete states (0/1)
ЁЯУЭ Section 48 – Exam-Style Q&A (FAQ Schema Ready)
48. Exam-Style Questions & Answers (14 Important Q&A) ▼
роЗрои்род Q&A родொроХுрок்рокு A/L MCQ, Structured рооро▒்ро▒ுроо் Essay роХேро│்ро╡ிроХро│ுроХ்роХு роПро▒்ро▒родு. Google Featured Snippets-роХ்роХுроо் optimize роЪெроп்ропрок்рокроЯ்роЯுро│்ро│родு.
Example: Washing machine controller, Microwave oven controller.
Example: ATmega328P in Arduino Uno.
Example: LDR рооூро▓роо் light intensity reading (0–1023 range).
Example: Push button / Reed switch.
Example: LED ON/OFF, Buzzer ON/OFF.
Example: Arduino IDE.
роЗро░ுроЯ்роЯாроХுроо்рокோродு LED ON; ро╡ெро│ிроЪ்роЪрооாроХுроо்рокோродு LED OFF.
Application: Door open/close detection.
Logic:
IF temperature > threshold THEN Fan ON ELSE Fan OFF
ЁЯУК Sections 49-51 – Structured Question Examples
49. Structured Q: Automatic Fan System (Classroom) ▼
| Part | Question | Answer |
|---|---|---|
| (a) | Input device роТрой்ро▒ைроХ் роХுро▒ிрок்рокிроЯுроХ | Temperature sensor |
| (b) | Processing device? | Microcontroller / Development board |
| (c) | Output device? | Fan |
| (d) | Basic condition роОро┤ுродுроХ |
IF temperature > threshold
|
(e) System Diagram
50. Structured Q: Automatic Light System (Room) ▼
Input
LDR
Processing
Microcontroller
Output
LED
System Flow
Logic / Pseudocode
51. Structured Q: Door Security System (Reed Switch) ▼
Input
Reed switch
Processing
Microcontroller
Output
Buzzer
System Flow
Logic / Pseudocode
ЁЯзо Section 52 – Master Formula (One Formula, Whole Chapter)
52. роТро░ே Formula-ро╡ிро▓் рооுро┤ு 11.1 Chapter | Master Architecture ▼
роЗрои்род роТро░ு structure-роР роирой்ро▒ாроХрок் рокுро░ிрои்родுроХொрог்роЯாро▓் chapter рооிроХро╡ுроо் роОро│ிродாроХிро╡ிроЯுроо். роОрои்род IoT/Embedded system question-роХ்роХுроо் роЗродை apply роЪெроп்ропро▓ாроо்.
Example 1 – Automatic Light
Example 2 – Automatic Fan
Example 3 – Smart Door Alarm
ЁЯза Section 53 – Last-Minute Revision Sheet
53. Last-Minute Revision Sheet | 15 Core Points ▼
родேро░்ро╡ுроХ்роХு рооுрой் роЗрои்род 15 points-роР роороЯ்роЯுроо் revise роЪெроп்родாро▓ுроо் chapter-рой் core concept роиிройைро╡ிро▓் роЗро░ுроХ்роХுроо்.
ЁЯОп Sensor Examples
LDR Temperature Reed Switch PIR Ultrasonic
⚙️ Actuator Examples
LED Fan Buzzer Motor Relay
ЁЯОБ Bonus: 3 Main Applications Comparison Table ▼
Exam-ро▓் роЕроЯிроХ்роХроЯி ро╡ро░ுроо் рооூрой்ро▒ு рооுроХ்роХிроп applications-роР роТро░ே table-ро▓் compare роЪெроп்ропுроЩ்роХро│்:
| Application | Sensor (Input) | Signal Type | Processing | Output | Logic |
|---|---|---|---|---|---|
| Automatic Light | LDR | Analog | Arduino | LED | IF light < threshold → LED ON |
| Automatic Fan | Temperature Sensor | Analog | Arduino | Fan (via Relay) | IF temp > 30°C → Fan ON |
| Door Security | Reed Switch | Digital | Arduino | Buzzer / LED | IF door OPEN → Buzzer ON |
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