This 3 sentence summary provides the essential information about the document: The document presents a mini project on an automatic hand sanitizer machine, describing the hardware requirements including a microcontroller board with a P55NF06 MOSFET and EL817 opto-isolator, and a sensor board with IR transmitter and receiver to detect presence. It discusses the technical specifications, advantages of hands-free operation and customizable settings, and provides a cost analysis of around 240 rupees for the hardware components.

1. MINI PROJECT
PRESENTATION
KEE 554
SUBMITTED BY:
LALIT KAPOOR
1873520033
3rd YEAR-EE
SUBMITTED TO:
MR.MOHAMMAD AHMAD
MR.MAYANK KUMAR
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2. Acknowledgement
 I would like to express my special thanks of gratitude to
my teacher Mr. Mohammad Ahmad and Mr. Mayank
Kumar as well as our Registrar Mr. Naresh Kumar
who gave me the golden opportunity to do this
wonderful project on the topic Automatic Hand Sanitizer
Machine, which also helped me in doing a lot of
Research and i came to know about so many new
things I am really thankful to them.
Secondly i would also like to thank my parents and
friends who helped me a lot in finalizing this project
within the limited time frame. A special thanks to
Vindhya Circuits Kanpur for developing the PCB for the
designs I provided.
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3. CONTENTS
 Introduction
 Hardware Requirements
 Advantages
 Cost Analysis
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4. INTRODUCTION
 This is the circuit you can use in automatic
hand sanitizer machine .
 This circuit provides hands free use of
sanitize with customizable settings for sensor
,ie, you can easily set the distance at which
the ir sensor senses presence of body and
the duration till which the sanitizer liquid is
released.
 This operation was achieved b using a
programmed microcontroller with ir transmitter
and receiver with control board.
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5. Microcontroller Board
 The microcontroller board consists of p55nf06
MOSFET which renders the devices
suitable for use as primary switch in
advanced high-efficiency isolated DCDC
converters.
 The microcontroller board also consists of
el817 is an opto-isolator to provide the
electrical isolation between the sensor board
and the micro-controller board.
 The microcontroller board consists an alarm
sensor which beeps when a body is sensed
by the ir sensor.
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6. The Board……
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7. Technical Specifications
 Operating Voltage ----->5V
 Input Voltage (recommended)-----> 7-12V
 Input Voltage (limits)-----> 6-20V
 DC Current per I/O Pin----->40 mA
 DC Current for 3.3V Pin ----->50 mA
 IR receiver is of 38Khz frequency to avoid
false detection of other light sources.
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8. Sensor Board
 Main task of sensing the
presence of body is done
by this board. This board also
contains power indicator
and when sensor is active.
IR transmitter and receiver are also present on
this board and are placed in such a way to
accurately detect the presence of body.
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9. Advantages
 It is a robust and easy to use system.
 There is no need for extra training of that
person who is using it.
 Easy to install at your home and office and the
system is easy to customize.
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10. Cost Analysis
Hardware Price in Rs.(approx.)
Power suply 80
P55nf06,el817,ir sensors, leds,
alarm sensor
15+10+20+5+10=60
Connection Wires 50
Board 50
Total 240
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11. Thank You
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