Hello Friends, I hope you all are fine and will be doing well in your life. In today's tutorial, I am going to give you a detailed Introduction to DHT11. It is an embedded sensor used to measure temperature & humidity in the surroundings and gives calibrated digital output. It can measure temperature in the range of 0°C to 50°C with ±2°C accuracy. Its humidity range is from 20% to 80% with ±5% accuracy. It is a small, low cost and easy-to-interface embedded sensor.
In this tutorial, I will explain its working, pinout, protocol and interfacing with other microcontrollers in detail.
Here are a few important features of DHT11, given in the below table:
DHT11 Features & Specs
No.
Parameter
Value
1
Measures
Humidity & Temperature
2
Sensor ...
Selecting the right BLDC motor for electric vehicle applications involves more than comparing specs — cooling method is one of the most consequential decisions in EV powertrain design.Most guides tell you water cooling is "better." That's not wrong — but it's also not useful. This guide gives you the actual decision boundaries: what each cooling method handles, where it fails, and how to match your choice to your specific vehicle and duty cycle.
Why Cooling Is a System-Level DecisionThe cooling method isn't just a motor spec — it affects your entire drivetrain. It determines weight distribution, maintenance intervals, IP rating requirements, and total system cost over three to five years. Choosing based on motor specs alone is one of the most common ...
Hey Guys! I am back to give you a daily dose of information so you can excel and grow in your relevant field and keep coming back for what we have to offer. If you are a hobbyist or student, you require a transistor for the execution of your project every now and then.
Today, I am going to unlock the details on the Introduction to 2n4123. It is an NPN (negative-positive-negative) general purpose transistor which is mainly used for the amplification and switching purpose where collector current around 100mA is required. It is a semiconductor device mainly composed of silicon and comes with three terminals where a voltage applied to the one pair of terminals is used to control the current at the other pair of terminals.
I'll break down each and ev ...
Introduction
Hello friends, I hope you are doing very well. Today we are going to learn and practice the master control reset (MCR)! So what is that MCR? Well! This is a tool you might use to control a group of devices with one push button for performing fast emergency responses with one click for a group of devices in one zone. In another word, you divide the program into zones and put this zone between a master control to control their operation as one unit by one contact. This technique is useful for applying emergence stops and also protecting some equipment by applying a safety restriction to not operate when that condition is in effect.
The concept of the master control reset (MCR)
Figure 1 shows the master control relay in a ladder logic showing a couple of rungs between the ma ...
Hello readers, today we will learn about the messaging protocol supported by ESP32(called MQTT protocol), which is used for IoT applications. The communication protocol to be used for data transmission and connectivity in web-enabled devices depends upon the type of IoT application.
The Internet of Things (IoT) is a network of interconnected computing devices like digital machines, automobiles with inbuilt sensors, having unique identifiers and the ability to communicate data over a network without the need for human intervention.
Before implementation, let's first have a look at what is MQTT Protocol?
What is MQTT?
MQTT stands for Message Queuing Telemetry Protocol and is a messaging or communication protocol used for IoT applications.
In MQ ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about Introduction to 74HC245. 74HC 245 is a eight (8) bit transceiver. It has three (3) output states. 74HC-245 is designed for a-synchronous transfer of data between different data buses. The external timing requirement can be reduced by the implementation of control function. You should also have a look at Introduction to 74HC595.
There are two internal amplifiers in 74HS 245. They are named as A and B. Data is transferred from A amplifier to B amplifier and vice versa. Hence two way communication is done in 74HC-245. This communication depends upon the logic level on the direction control input (DIR). Out enable pin (OE) is used to ...
Hello friends, I hope you are all fine and will be doing something special in your life. In today's post, we are gonna have a look at a detailed Introduction to MPU6050. MPU6050 is a sensor for motion processing devices. It is the world's first six-dimension motion tracking device. It was designed for low-cost and high-performance smartphones, tablets and wearable sensors. It is capable of processing nine-axis algorithms, it captures motion in X, Y and Z axis at the same time.
MPU6050 is used in different industrial projects and electronic devices to control and detect the 3-D motion of different objects. In today's post, we will have a look at its working, pinout, protocol, it's interfacing with Arduino, features, applications, etc. I will also share some links of projects wh ...
Hello readers, I hope you all are doing great. In this tutorial, we will learn how to update a webpage using Server-Sent Events and the ESP32 web server.
What is Server-Sent Events (SSE)?
It is a server push technology that enables the client devices to receive automatic updates from a server over HTTP (Hypertext Transfer Protocol) connection. SSE also describes how the server can initiate data transmission towards the client once an initial connection with the client has been established.
We have already posted a tutorial on how to implement Web socket protocol with ESP32 which is also a protocol used to notify events to a web client. Both the Server-Sent Events (SSE) and Web-Socket technologies seem to be quite similar but they are not.
The major difference between the two is that SSE ...
Hello Friends! Happy to see you around. I welcome you on board. In this post today, I’ll walk you through the Introduction to 1n4749.
The 1n4749 is a Zener diode made of silicon material. It is used for clipping circuits with high power ratings. It is also incorporated in voltage stabilizing circuits and voltage protection circuits. There is a slight difference between the normal diode and the Zener diode. In the normal diode, conduction is carried out in one direction only i.e. in forward biased condition. While in the case of the Zener diode, the conduction is carried out in both conditions i.e. forward biased condition and reverse biased condition. Zener diodes are also applied to keep circuits from overvoltage.
Read this post till the end as I’ll walk you through the complete Int ...
Hi Everyone! Hope you’re well today. Happy to see you around. In this post today, I’ll walk you through the Introduction to TDA2005.TDA2005 is a 20-watt Class B dual audio amplifier integrated chip. It comes in a Multiwatt11 package and is carefully designed for car radio applications. It can support the current up to 3.5A which is quite high which makes it a suitable pick for constructing power booster amplifiers.
I suggest you read this post all the way through as I’ll detail the complete Introduction to TDA2005 covering datasheet, pinout, features, and applications.
Let’s jump right in.
Introduction to TDA2005
TDA2005 is a 20-watt Class B dual audio amplifier integrated chip. It is particularly designed for car radio applications.
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