Narayani Nareshkumar

VIT University- Chennai

Overview What is a robot?

What are the essential parts of a robot?

Different types of robots

Colour sensor

Colour wheel

LDR

What is a Gate?

Integrating LDR , Gate and the colour wheel.

Uses

What is a Robot? A machine

Performs any human task

Operates automatically / by remote control

May / may not resemble a human

Follows a routine

What are the essential parts of a robot?A robot has these essential characteristics:

Sensing

Movement

Energy

Intelligence

Different types of robot Industrial robots

Domestic or household robots

Medical robots

Service robots

Military robots

Entertainment robots

Space robots

Hobby and competition robots

Colour sensors A circuit to detect 8 colours

Red , green, blue

Yellow, magenta, cyan

Black and white

Uses of colour sensor Sorting

Washing machineDyed clothes

Blood test

Farms- different fruits and vegetables-ripe and raw fruits- coffee beans/ cocoa beans segregation

The Colour Wheel

What is an LDR? Light dependent resistor

Resistance inversely proportional to light

A semiconductor material

Integrated with a colour filter.

Red, blue, green

What is a logic gate? building block of a digital circuit

Input - 1output

Not gate- 1-> 00-> 1

AND gate- 00->001->010->011->1

What is a logic gate? building block of a digital circuit

OR gate- 00->001->110->111->1

Integrating LDR, Logic Gates and the colour wheel