Hello readers, I hope you all are doing great. Welcome to the 3rd Lecture of Section 2 in the ESP32 Programming Series. In this tutorial, we are going to discuss another important feature of ESP32 i.e. PWM(Pulse Width Modulation).
Pulse Width Modulation is a technique to reduce the voltage by pulsating it. In today's lecture, we will first understand the basic concept of PWM, and after that will design two projects to fully grasp it. In the first project, we will control the brightness of an LED, while in the second one, we will control the speed of a DC Motor.
Here's the video demonstration of PWM Control in ESP32:
Before going forward, let's first have a look at the PWM working:
What is Pulse Width Modulation?
PWM is used to control the power delivered to the load by pul ...
Hey Guys! Hope you are doing well. Welcome you onboard. Today, I'll discuss the details on the Introduction to CR2032 Battery. It is known as a coin cell or button cell that comes in cylindrical form and is mainly used in pocket calculators, wrist watches, artificial cardiac pacemakers, hearing aids, and automobile key-less entry transmitters.
Low self-discharge and an ability to retain a charge for a long time make this device a good pick for high power devices. More often than not, it is called a lithium energizer where high capacity is a major concern. It falls under the category of disposable primary cells, where common cathode material is a silver oxide, manganese dioxide, or carbon monofluoride and common anode materials are zinc or lithium ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about Introduction to LM335. LM 335 is basically an Integrated Circuit (IC) for precise temperature sensor. LM-335 operates on a current range 400uA-5mA having resistance less than 1 ohm. At 10mV/K, its absolute temperature becomes directly proportional to the breakdown voltage.
LM-335 operates as two terminal zener diode. At the temperature ranging from -40 degree Celsius to 100 degree Celsius, LM 335 can be used for each type of temperature sensing purposes. This device is available in different dimensions and in different sizes. LM-335 is most commonly available in the market due to its unique features including e.g. large temperatur ...
Hey Guys! Hope you all are doing great and having fun with your lives. I am back to feed your stomach with plenty of information so you can progress and grow in real life. Today, I am going to unlock the details on the Introduction to 2n3055. It is a semiconductor NPN (negative-positive-negative) power transistor which comes in TO-3 Casing.
I'll try to cover as many aspects possible related to this device so can get a brief overview about what it does and what are the applications it is used for. Let's get started.
Introduction to 2n3055
The 2n3055 is a semiconductor NPN bipolar transistor which consists of three terminals called emitter, base, and collector.
Unlike FETs(Field effect transistors) it is a current controlled device in which sm ...
Hey Fellas! Hope you are doing great! I try my best to give you information that can help you excel in your field and put you ahead from others. Today, I am going to unlock the details on the Introduction to 2n6027. It is a uni-junction transistor that comes with UTC's advanced technology and provides high peak output voltage, low offset voltage, low gate to anode leakage current and forward voltage. I'll give a brief introduction about this transistor so you don't need to go anywhere for searching information regarding this transistor.
Introduction to 2n6027
2n6027 is a programmable uni-junction transistor (PUT) that is widely used in pulse and timing circuits, oscillator, and thyristor-trigger.
Anode gate availability with this transistor m ...
Internet of Things is a system of multiple inter-related computing devices. The factor ‘thing’ in IoT is designated to an entity capable of communicating data over a network (IOT), which can be a digital machine, sensor, human being, animals etc. Each component that is included in IoT network is assigned with an unique identity called UID and the ability to communicate data over IoT network without any external human or computer intervention.
Hello readers, I hope you all are doing great. In our previous tutorial, we discussed how to upload data to Firebase Real-time Database using ESP32. In this tutorial, we will learn how to read the data stored on the Firebase Database with ESP32.
We can access the data stored in Firebase database from anywhere in the world, which makes this preferable ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to give you detailed discussion on Introduction to LM2904. LM 2904 consists of two builtin amplifiers. These amplifiers have high gain and they are internally frequency compensated. These amplifiers are designed for the operation from a single power supply for a large range of voltages. We can also operate them from multiply power supplies as well.
LM-2904 operates on 3.3V power supply, it is the most common power supply in digital systems. LM 2904 is also available in small sizes i.e. they are available in the latest technology DSBGA. LM-2904 has a lot unique features in comparison to the other standard amplifiers. These features include large DC voltage ga ...
Hello readers, I hope you all are doing great. In our previous tutorial, we learned SMTP server and how to implement an SMTP server for sending emails with ESP32. In the previous tutorial, we also demonstrated some examples like sharing raw text, HTML text, images and text files.
So, at the transmitter end, we are using the SMTP server.
But, what about the receiver end?
At the receiver end, we use another protocol called IMAP (or Internet Message Access Protocol) and POP3 (Post office Protocol V3) for receiving the emails.
Fig. IMAP and SMTP
What is IMAP Protocol and How does it Work?
IMAP is an application layer (TCP/IP) protocol that is used at the receiver end to receive emails from SMTP server or mail server. IMAP follows the client/server mo ...
Hi Folks! Hope you’re well today. Happy to see you around. In this post today, I’ll detail the Introduction to SB5100.
The SB5100 is a Schottky diode used in electrical circuits to avoid overvoltage. It is also known as a hot-carrier diode and comes with low forward drop voltage. It is capable of high surge current and is used in power management and automotive applications.
You can go through the Introduction to 1n5822 and Introduction to 1n5821 that I have uploaded recently.
Read this entire post till the end as I’ll walk you through the datasheet, pinout, features, and applications of this tiny component SB5100.
Introduction to SB5100
The SB5100 is a Schottky diode, also known as a hot-carrier diode, mainly employed for extremely fast swi ...
Hello friends, I hope you all are doing great. Today, we will discuss HC-05 Bluetooth Module in detail. We will also study HC-05 Pinout, Datasheet, Features & Projects. HC05 is a Bluetooth module, that works on Serial Protocol ( RX/TX ) for sending and receiving data. We have also designed Bluetooth Library for Proteus, which will help you in simulating this Bluetooth Module in Proteus software.
HC05 Bluetooth Module consists of CSR Bluecore 04 outer single-chip Bluetooth system having CMOS (complementary metal-oxide-semiconductor) technology. This module also fulfils the Bluetooth V2.0+EDR technology. So let's get started with Introduction to HC-05.
HC-05 Bluetooth Module
HC-05 Bluetooth Module is a low-cost, easy-to-operate & small-sized module used for wireless communic ...
