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Hardware required to build a basic Robot
This document provides information about hardware components used in a microcontroller project including an ATmega16 microcontroller, L293D motor driver IC, 7805 voltage regulator, and an AVR development board. It describes the ATmega16 architecture and pin configuration, the functions of the L293D for driving motors, specifications of the 7805 voltage regulator for providing 5V power, and briefly mentions the AVR development board.
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Hardware required to build a basic Robot
- 1. Hardware…. AVR, L293D, VoltageRegulator , AVR Development Board …
- 3. INTRODUCTION • ATmega16 isa microcontroller based on the AVR RISC architecture • By executing powerful instructions in a single clock cycle, the ATmega16 achieves throughput approaching 1 MIPS per MHz • In order to maximize performance and parallelism, the AVR uses a Harvard architecture- which separates memories and buses for program and data
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- 8. PIN DESCRIPTION • VCCDigital supply voltage • GND Ground • RESET A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running • AREF The analog reference pin for the A/D Converter • AVCC The supply voltage pin for the A/D Converter
- 9. I/O PORTS FOUR 8bit I/O ports of ATmega16 are • PORT A • PORT B • PORT C • PORT D
- 10. L293D – MotorDriver IC
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- 13. PUSH-PULL four ChannelDriver with Diodes Designed to accept standard DTL or TTL logic levels and drive inductive loads and switching power transistors Suitable for use in switching applications at frequencies up to 5KHz It is assembled in a 16 lead plastic package which has 4 centre pins connected together and used for heat sinking. L293D MOTOR DRIVER
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- 16. Features • Output currentin excess of 1A • Internal thermal overload protection • No external components required • Internal short circuit limit. • Available in the TO-03 package
- 17. Voltage Range Different versionsof LM78XX • LM7805 5V • LM7812 12V • LM7815 15V • Need: Microcontroller needs a constant 5V supply which can be obtained using LM7805.
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- 19. Any Doubts..?? • AVR •L293D • Voltage Regulator • AVR Development Board
Editor's Notes
- #14 DTL means Diode Transistor Logic