Security & Control Systems

🎯 What you’ll learn

• What a security system does
• Sense, decide, alert
• Layers of safety

🎬 Animated demo

A burglar approaches and each security layer reacts in turn.

🛠️ Project & application ideas

• Home safety survey
• Draw a security plan for your room

🎯 What you’ll learn

• Buzzers, sirens and flashing lights
• Arming and disarming
• Avoiding false alarms

🎬 Animated demo

Arm the system and trigger a loud alarm with flashing lights.

🛠️ Project & application ideas

• Buzzer alarm with arm switch
• Flashing siren light

🎯 What you’ll learn

• Reed switches and magnets
• Open/close detection
• Entry delays

🎬 Animated demo

Open a door and the magnet sensor sets off the alarm.

🛠️ Project & application ideas

• Door-open alarm
• Cupboard secret alert

🎯 What you’ll learn

• Sensing body heat
• Coverage areas
• Pets vs people

🎬 Animated demo

Someone walks across the room and the motion sensor catches them.

🛠️ Project & application ideas

• Room intruder alarm
• Motion-activated camera trigger

🎯 What you’ll learn

• Light beams and receivers
• Breaking the beam
• Mirror tricks

🎬 Animated demo

Break the laser beam and the alarm goes off instantly.

🛠️ Project & application ideas

• Laser tripwire (low-power)
• Beam-count visitor counter

🎯 What you’ll learn

• PIN codes and keypads
• Servo and solenoid locks
• Wrong-code lockout

🎬 Animated demo

Enter the right code and the lock clicks open.

🛠️ Project & application ideas

• Keypad treasure box
• Password door model

🎯 What you’ll learn

• How RFID cards work
• Allowed and blocked cards
• Attendance with cards

🎬 Animated demo

Tap an allowed card to open; a wrong card is refused.

🛠️ Project & application ideas

• RFID door lock model
• Card-based attendance

🎯 What you’ll learn

• How CCTV records
• Motion-triggered snapshots
• Privacy rules

🎬 Animated demo

A camera spots motion and saves a snapshot.

🛠️ Project & application ideas

• Phone camera motion watch
• Privacy-friendly camera plan

🎯 What you’ll learn

• Smoke, flame and gas sensors
• Exhaust fans and sprinklers
• Evacuation alarms

🎬 Animated demo

Smoke appears and the fan, alarm and sprinkler all react.

🛠️ Project & application ideas

• Fire alarm with exhaust fan
• Gas-leak shutoff model

🎯 What you’ll learn

• AND / OR logic for alarms
• Zones and priorities
• Status lights

🎬 Animated demo

Arm different zones and watch the panel light up.

🛠️ Project & application ideas

• Two-zone alarm panel
• Logic gate puzzle

🎯 What you’ll learn

• Sending alerts over Bluetooth / WiFi
• App status screens
• Alert only when it matters

🎬 Animated demo

An alarm triggers and a phone alert pops up instantly.

🛠️ Project & application ideas

• Phone-alert burglar alarm
• Security status app

🎯 What you’ll learn

• Plan a full system
• Combine sensors, lock and alerts
• Test like a security expert

🎬 Animated demo

All sensors, locks and alerts work together to protect a model house.

🛠️ Project & application ideas

• Smart home security kit
• School lab guard (final project)