Introduction to sensors & Actuators.pptx

arduino based techology

1. Introduction to sensors & Actuators L. Ratnayake (MBA, BSc, DNIIT SE, Dip. Network Eng., Certificate in Brain Controlled Robotics)

2. Piezo plate Can create sound output or signal inputs using this. Mainly used to take input of vibrations. Can use to create knock based locker, sonic steamers, earthquake detector.

3. Gear Motor Uses for creating RC cars and robots Has high ratio geared motor wheels for high power Can power using 5V and need a motor driver or a shield to function.

4. IR remote sensor Detects IR light and sends a signal Signal can be read and convert to input by arduino Can use to create IR remote controlled device

5. Piezo speaker Uses a piezo plate to create a small speaker Comes as inbuilt motherboard speaker. Can use as a monophonic melody buzzer with arduino

6. Servo motor 9G Can have 180 degree movement using this item. Used for open close of doors or pointing an item in any direction. Uses servo.h header to activate. Pinout as vcc , gnd and pwm (works with pwm pins)

7. Proximity sensor IR Can measure short distance. Sends an infrared signal and detects it back. Useful for robot cars with line following mode Or collision avoiding robots. Also to turn devices on when open or close of lids.

8. Hall effect /magnetic Field sensor Has a Hall sensor with 3 pins to detect changes in a magnetic field Used to create brushless motors inside hard drives and CD Roms . The Module can be used to detect and count a number of times magnet is detected.

9. Ultrasonic sensor HC-SR04 Uses ultrasonic sound waves to get the distance Need to convert the received signal using a math to cm, mm, meter Useful for collision avoid robots or distance measurement device.

10. Temperature Sensor LM35 3 pin sensor or 2 pin sensor Can detect temperature Use analog reading. Directly connect to arduino analog pins. Change GRN and OUT pins to correct input.

11. Voltage Relay Can operate two sircuits using this actuator Relay operated using 5V Can operate 12v dc to 230V ac Application to household bulbs, fans, tv etc.

12. Photo Light sensor Can detect changes of light Comes as a module or 2 pin unit Can use for auto turn on bulbs or motors in the dark Can also adjust brightness of a light using this

13. Gas sensor MQ-2 Smoke Gas Sensor Can detect LPG Propane Butane and Hydrogen Detector Module for Arduino Can create gas leak detectors, alcohol sensors, Air quality testers MQ 135 can detect NH3, NOx , alcohol, Benzene , smoke,CO2

14. Motor Shield/Driver H bridge motor driver Can use with 2 or 4 motors Can go forward or backward Can programme left and right to go different ways. Can apply 5 to 8 volts

15. LCD Module 1602A Has 16 character into 2 lines Can utilize to still or animation text Can be used to display messages. Can use with a keypad to create devices. Can use I2C LCD Adapter to use 4 pin interface