Biratnagar Robotics Club, Nepal

BCRT Robotics Workshop 2014

DAY-2

Recall• Basic Electronics components• Bread Board architecture and working• Use of multi-meter• Adapter and its use• DPDT switch• Switching mechanism for controlling motor in bi-direction• Power board and Voltage regulator• Making Manual Robot

What about Robo Akhada/yantra akhada?• Dimension should not be more than (25 x 25 x25)• Weight should not be more than 3 kg• You may can use two or four motors for strength• The shape can be varied as per the design.• Your robot should not harm another robot physically its

just a sumo wrestling .• Hammering and cutting mechanism in robot will be

disqualified.• The voltage difference across two wire should not be

greater than 24V• You can make small in size and greater in strength robot

to win Yantra aakhada.

MORE ELECTRICAL COMPONENTS• Diodes• Voltage regulators i.e. 78xx• Motors• Connecting wires • One to One connector

Let’s Start

Voltage regulator• The three terminal electrical component used for regulating

constant voltage supply.• Its rating is generally LM78xx.• The last xx in the name denote the output voltage.• Examples: 7805(5 V output), 7806(6V output), 7809(9V output),

78012(12V output)

Draw Simple circuit on bread board

H-Bridge

GND

GND

+5 V

H-Bridge

Working of H-Bridge

Things to get clear• Vcc = +5V = vs = On = logic high =logic 1• Gnd = -ve = 0v = logic low• Signal = output from the sensors

Can this circuit be drawn on bread board

How about this????

IC (INTEGRATED CIRCUIT)

• It is the complex circuit integrated in in a box known as IC• There are several pins for the connection• Generally IC operates at 5 V supply. i.e. Vcc

• content for 2moro 780xx,• its type • and why it is used making simple ckt on bread board IC,about pin &

its type H bridge intro,pin diagram,working mechanism,using H bridge on bread board,description of l293d module, sensor intro,use & type with example, IR module(digital & analog) differences on both IR module and LED array interfacing IR module & L293d module interfacing making line tracking

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