Block Diagram
Bluetooth
Tx/Rx
AVR Controller
M
Driver Circuit
PWM
Bluetooth
Tx/Rx
AVR
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Atmel AVR 8-Bit Processors come in a
variety of configurations and packages
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They all share a common core – registers,
instructions, basic I/O capabilities
Our focus is the ATMega16
ATMega16 Specs
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131 Instructions
32 8-bit GP registers
Throughput up to 16 MIPS
16K programmable flash (instructions)
512Bytes EEPROM
1K internal SRAM
Timers, serial and parallel I/O, ADC
AVR CPU
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PC: address of next
instruction
IR: prefetched
instruction
ID: current instruction
GPR: R0-R31
ALU: Note internal data
path
Flash Memory
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Programs reside in word addressable flash storage
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Harvard Architecture
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Word addresses range from 0000-1FFF (PC is 13 bits)
Byte addresses range 0000-3FFF (0x4000=16K)
It is possible to use this storage area for constant data as
well as instructions, violating the true spirit of this
architecture
Instructions are 16 or 32-bits
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Most are 16-bits and are executed in a single clock cycle
Applications
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• High-tech Multi-user Toys
• Wireless Game Controllers
• Telemetry
• Wireless Audio/Video
• Electronic Point of Sales
• Wireless Control
Blue-tooth Wireless Speed Control
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Submitted By :
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NISHA
Low-IF 2.4-GHz ISM Transceiver
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Features
• Fully Integrated Low IF Receiver
• Fully Integrated GFSK Modulator for 72, 144, 288, 576 and 1152
Kbits/s
• High Sensitivity of Typically –93 dBm Due to Integrated LNA
• High Output Power of Typically +4 dBm
• Multi-channel Operation
– 95 Channels
– Support Frequency Hopping (ETSI) and Digital Modulation
(FCC)
• Supply-voltage Range 2.9V to 3.6V (Unregulated)
• Auxiliary Voltage Regulator on Chip (3.2V to 4.6V)
What Is BLUETOOTH
First of all, in case some of you don't know, Bluetooth is the common name
for the new short range wireless technology that is able to transmit voice and
data while working with mobile phones, music players,
personal digital assistants (PDA) and computers.
Bluetooth Name
Okay, now for some history.
The Bluetooth technology was given its name in reference to the
Danish king Harald "Bluetooth" Blaatand.
He was the one who unified Denmark and Norway between 940 and 985 AD.
The reason Bluetooth is named after him is because it is known
to unite the telecom and computing industries today.
Makes sense, right?! It's all about unity!
Advantages
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Wireless
Bluetooth is actually inexpensive
Bluetooth is automatic
Standardized protocol
Low interference
Adventages(continued….)
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Low energy consumption
Sharing voice and data
Instant PAN (Personal Area Network)
Adventages(continued….)
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Wirless
There is no need of wires in wirless communication and
bluetooth is a wire tecnology
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Bluetooth is actualy inexpensive
The technology of Bluetooth is cheap for companies
to implement,
Adventages(continued….)
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Bluetooth is automatic
Bluetooth doesn't have you set up a connection or
push any buttons they will automatically begin to communicate
without you having to do anything
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.Standardized protocol
Bluetooth is standardized wireless, meaning that
high level of compatibility among devices is guaranteed
Adventages(continued….)
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Low interference
Bluetooth devices almost always avoid interference
from other wireless devices. Bluetooth uses a
technique known as frequency hopping, and also
low power wireless signals.
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Low energy consumption
Bluetooth technology requires very little energy and will
use less battery or electrical power. This is an excellent benefit
for mobile devices,
Adventages(continued….)
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Sharing voice and data
The standard for Bluetooth will allow compatible
devices to share data and voice communications. Bluetooth
simplifies driving and talking on your cell phone.
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Instant PAN (Personal Area Network)
You can connect up to seven Bluetooth devices to
each other within a range of up to 30 feet, forming
a piconet or PAN.