Title Grade-7 Trim3 20242025 Revision Sheet.pdf ✅

Grade 7
ISK STEM Program 2025 powered by Techademics Grade 7 1 (1) Projects Common Components A microcontroller board that acts as the brain of a project Type: microcontroller Power Range: 7–24V How It Works: Executes code to control other components Applications: Robotics, automation 1- Arduino Uno 2- Servo Motor A motor that rotates to a specific angle from 0 to 180 Type: actuator Power Range: 4.8–6V How It Works: Moves shaft to desired angle Applications: Door openers, robotic arms 3- DHT11 Temp Sensor A sensor that measures temperature and humidity Type: sensor Power Range: 3–5V How It Works: Sends temperature and humidity data Applications: Weather stations, home automation
ISK STEM Program 2025 powered by Techademics Grade 7 2 4- LCD Screen (16x2) A screen that displays characters Type: actuator Power Range: 5V How It Works: Receives data from Arduino to show text Applications: Thermometers, clocks 5- LED A small light that turns on/off Type: actuator Power Range: 2–3V How It Works: Lights up when powered in correct direction Applications: Indicators, night lights 6- Buzzer Makes sound when powered Type: actuator Power Range: 3–5V How It Works: Vibrates to produce sound tones Applications: Alarms, reminders 7- Relay Module Electrically operated switch Type: actuator Power Range: 5V (signal), 220V (load) How It Works: Uses a small current to control large devices Applications: Fan/Light control
ISK STEM Program 2025 powered by Techademics Grade 7 3 8- H-Bridge Controls motor direction and speed Type: actuator Power Range: 5–12V How It Works: Allows motors to spin in both directions Applications: Cars, robot arms (motor control) 9- DC Fan Electric fan Type: actuator Power Range: 5–12V How It Works: Spins blades to move air Applications: Cooling systems, smart homes (2) Non-Common Components 1- DC Motor A motor that rotates continuously in one direction Type: actuator Power Range: 3–12V How It Works: Spins when current flows through it Applications: Cars, moving parts 2- RFID Module A module that reads RFID card data Type: sensor Power Range: 3.3–5V How It Works: Uses radio waves to identify tags/cards Applications: Access control, ID scanning