Romantic and DIY Fun Circuit Projects with hands on DIY Romantic Marry Me,Music Operated Dancing LEDs,Criminal Alarm, Crisis Light,Robot,XOR, NOR,OR,XOR and NOT Gate

150 Pages·2020·5.82 MB·English

by  Anbazhagan K

Romantic and DIY Fun Circuit Projects with hands on
DIY Romantic Marry Me,Music Operated Dancing LEDs,Criminal
Alarm, Crisis Light,Robot,XOR, NOR,OR,XOR and NOT Gate
Anbazhagan K
Copyright © 2020 Anbazhagan K
All rights reserved
The characters and events portrayed in this book are fictitious. Any similarity to real persons, living or dead, is coincidental and
not intended by the author.
No part of this book may be reproduced, or stored in a retrieval system, or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without express written permission of the publisher.
Contents

Title Page
Copyright
Acknowledgments
Introduction
1. Transistor Switching Circuit: Examples of How Transistor Acts as a Switch
2. 12v DC to 220v AC Inverter Circuit
3. DIY Romantic Marry Me Circuit Board
4. Basic Latch Circuit with Transistors
5. Straightforward Heat Sensor Circuit
6. Music Operated Dancing LEDs
7. Criminal Alarm Circuit
8. LM3914 Voltmeter Circuit
9. Prologue to ADC0804
10. Transformerless Power Supply
11. Crisis Light
12. Remote Controlled Light Switch
13. Voltage Tripler Circuit
14. Schmitt Trigger Gate
15. XNOR Gate
16. LM386 Based Audio Amplifier Circuit
17. NOR Gate
18. What's more, Gate Circuit
19. Alarm Generator Circuit
20. OR Gate
21. Decimal Counter Circuit
22. Parallel Counter Circuit
23. DTMF Based Home Automation
24. XOR Gate
25. NAND Gate
26. NOT Gate
27. RF Controlled Robot
28. Press ON Push OFF Button LED Circuit
29. Press Button LED Circuit
30. Straightforward LED Circuit
Thank You
Acknowledgments
The writer might want to recognize the diligent work of the article group in assembling this
book. He might likewise want to recognize the diligent work of the Raspberry Pi Foundation and
the Arduino bunch for assembling items and networks that help to make the Internet of Things
increasingly open to the overall population. Yahoo for the democratization of innovation!
Introduction
The Internet of Things (IOT) is a perplexing idea comprised of numerous PCs and numerous
correspondence ways. Some IOT gadgets are associated with the Internet and some are most
certainly not. Some IOT gadgets structure swarms that convey among themselves. Some are
intended for a solitary reason, while some are increasingly universally useful PCs. This book is
intended to demonstrate to you the IOT from the back to front. By structure IOT gadgets, the per
user will comprehend the essential ideas and will almost certainly develop utilizing the rudiments
to make his or her very own IOT applications. These included ventures will tell the per user the
best way to assemble their very own IOT ventures and to develop the models appeared. The
significance of Computer Security in IOT gadgets is additionally talked about and different
systems for protecting the IOT from unapproved clients or programmers. The most significant
takeaway from this book is in structure the tasks yourself.
1. Transistor Switching Circuit: Examples of How
Transistor Acts as a Switch
Transistors are comprised of semiconductor material which is most usually utilized for
enhancement or exchanging reason, in case that they can similarly be used for controlling the
progression of voltage and current. Not everything except rather the greater part of the electronic
gadgets contain minimum 1 sorts of transistors. A portion of the transistors put independently or,
in all likelihood mostly in incorporated circuits which differ as mentioned by their applications.
On the off chance that we talk about enhancement, the electronic current flow can be
modified by the expansion of electrons and this procedure carries voltage varieties to influence
relatively numerous varieties in yield current, bringing intensification into reality.
What's more, on the off chance that we talk about exchanging, there are 2 sorts of transistors
Negative Positive Negative along with Positive Negative Positive. In this instructional exercise
we will tell you the best way to utilize a Negative Positive Negative along with Positive Negative
Positive transistor for exchanging, with model transistor exchanging circuit for both Negative
Positive Negative along with Positive Negative Positive type transistors.
Material Required

BC547-NPN Transistor

BC557-PNP Transistor

LDR

Driven

Resistor (470 ohms, 1 uber ohms)

Battery-9V

Interfacing wires

Breadboard
NPN Transistor Switching Circuit
Before beginning with the circuit chart, you should know the idea of NPN transistor as a
switch. In a NPN transistor, Current beginnings spilling out of authority to producer just when a
base voltage of 0.7V is provided to the base terminal. When there is no voltage on Base terminal
it fills in as an open switch among gatherer and producer.
NPN Transistor Switching Circuit Diagram
Presently as you find in the circuit graph beneath, we made a voltage divider circuit utilizing
LDR and 1 uber ohm resistor. When there is light close to the LDR, its protections gets LOW
and the info voltage at base terminal is underneath 0.7V which isn't sufficient to turn ON the
transistor. As of now the transistor carries on like an open switch.
At the point when it is dull over the LDR, its opposition out of nowhere increments, thus the
divider circuit produced enough voltage (equivalent or more than 0.7V) to turn ON the transistor.
What's more, thus, transistor carries on like a nearby switch and begin streaming current among
gatherer and producer.