The document describes an Addiction Avoider device that uses binaural beats to help prevent addiction. It uses EEG sensors to detect brainwaves which are amplified and sent to a microcontroller. Two oscillators then generate tones that are slightly different frequencies and sent to either side of a headphone to create binaural beats. This aims to alter brainwave patterns associated with addiction and could help treat various types of addiction or reduce stress and tension. The portable, lightweight device has potential applications in communication for deaf individuals and provides a cheap, safe way to help address addiction issues.

1. ADDICTION AVOIDER USING
EMBEDDED SYSTEM
SIDDHARTH INSTITUTE OF
ENGINEERING & TECHNOLOGY
T. PRATHIBHA
ECE
11F61A04A7

2. CONTENTS :
•INTRODUCTION.
•THE ADDICTION
AVOIDER.
•FUTURE PROSPECTS.
•MERITS.
•DEMERITS.
•CONCLUSION.
•REFERENCES.

3. INTRODUCTION:
The Brain
 Brain waves
Addiction
The Brain:
 It is well known that brain is an electrochemical organ.
The Brainwaves are produced by the temporal lobe
of the brain.
 A fully functional brain can generate as much as 10
watts of electrical power.

4. INTERNAL STRUCTURE:

5. Brain waves:
 Electrical activity emanating from the brain is displayed in the form
of brainwaves.
S.
No.
Brainwave
s
Frequenc
y range
(Hertz)
1)
Delta 0.5 -4
2)
Theta 5 - 8
3)
Alpha 9 – 14
4)
Low Beta 15 –32
5)
High
Beta
32 - 40

6. Addiction:
 There are two types of addiction: Physical dependency and
Psychological dependency.
Physical dependency :
 Physical dependence on a substance is defined by appearance of
characteristic withdrawal symptoms when the drug is suddenly
discontinued.
 Many non-addictive prescription drugs should not be suddenly
stopped.
Psychological dependency:
 Psychological addictions are a dependency of the mind, and lead
to psychological withdrawal symptoms.
 Addictions can theoretically form for any rewarding behavior, or as
a habitual means to avoid undesired activity

7. THE ADDICTION AVOIDER
PRINCIPLE: The principle behind this device is
‘Binaural Beats’.
Block diagram:
A beating tone will be perceived, as if the two tones
mixed naturally, out of the brain. The frequency of
the tones must be below about 1,000 to 1,500 hertz.

8. WORKING:
SENSORS:
 These sensors consist of a 0.7 inch diameter hard plastic.
 The sensor sends the analog brainwave signal into the 8515
microcontroller.
Electroencephalography (EEG) sensors
AMPLIFIERS: Basically the amplitude of analog brainwaves is in terms of
10 – 15 micro volts.
But the Atmel 8515 microcontroller has an operating voltage
of about 2.7V – 6.0V. So we are using amplifiers.
Gain (A) = (-R2/R1)

9.  Where, negative sign represents change in phase by 90◦
 It is designed in such a way that it amplifies 15 micro volts to about
3.5V
 basic cascaded inverting amplifier using operational amplifier with a
gain of about 2, 00,000, embedded in a small Printed Circuit Board
(PCB).

10.  Here we are using four inverting amplifier cascaded with each
other.
, A1 = (-R2/R1)
= (-2/1)
= -2
A2 = (-R4/R3)
= (-10/1)
= -10
A3 = (-R6/R5)
Vo =Vi *Av
= (-100/1) = 3V
= = -100
A4 = (-R8/R7)
= (-100/1)
= -100
Now Total Gain of the amplifier (A),
A = A1 * A2 * A3 * A4
(2) A = (-2)*(-10)*(-100)*(-100)
A = 2, 00, 000
Circuit diagram of cascaded inverting
amplifier with a gain of 2, 00,000.
 Here we have amplified an 15uV
signal to an 3V signal so that the
signal is in the operational range of
the microcontroller

11. OSCILLATORS:
The oscillator is basically a Wein bridge audio oscillator
The oscillator is designed in such a way that it produces a
particular audio wave below 1500 Hz.
The oscillator will be designed such that it has 10 – 13 Hz difference
in frequency with oscillator 1.
 This difference in frequency creates Binaural Beats.
STEREO HEADPHONE
 This is done by sending audio
waves from one oscillator to one
of the two sides of the
headphone and another
oscillator to another side of the
headphone

12.  Addiction avoider can be used to cure stress or tension
on any individual
 The concept of binaural waves can be further
researched and used to find a device for communication
with deaf and dumb individuals.
FUTURE PROSPECTS

13. ADVATAGES:
 The headband used is made of rubber or any clothing.
 The whole device is light weight and can be carried anywhere we
want.
The whole device including sensors microcontroller and
headphone is cheap

14.  Addiction Avoider is the safest and simplest
device to use in prevention of Addiction. It is used for
any type of addiction like addiction caused by taking
narcotic drugs or alcohol and simple addictions like
overeating, sexual intercourse and mannerisms.
CONCLUSION:

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