Abstract: This paper is written to represent a web-server based real-time weather monitoring system implemented using the ESP32 module. The system is designed to measure the weather conditions like temperature, pressure, humidity etc, in its vicinity. This system continuously provides real-time data (weather conditions) over limited or controlled areas, for example, agriculture fields, homes or a particular room, industries etc. Although we have satellites for weather monitoring but to perform research over a particular area, the data observed should be highly accurate which is not possible with satellites. To implement an IoT network we need to use a webserver to continuously store and display the real-time data which can be accessed globally. ’T ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to A1015. A1015 is a part of transmissive light sensing sequence which has a high competence GaAs Infrared light discharging diode which actions as the light stemming component, extremely sensitive phototransistor is used as the light sensing element. These two apparatuses are established so as in the opposite of each other, any materials fleeting among them are effortlessly sensed.
The A1015 is made in casing of TO-92. By seeing at its smooth side we can comprehend the three terminals impending out, these three terminals from left to right are emitter, collector and base. In today’s post, we will have a look at its fortification, ...
Hi everyone! Hope you’re well today. I welcome you on board. In this post today, I’ll walk you through the Introduction to P6KE220A.The P6KE200A is a transient voltage suppressor (TVS) diode that uses clamping action to provide circuit protection against overvoltage. It is widely used in low-voltage supplied ICs and MOS technology due to its quick response to transient overvoltages. For P6KE200A the clamping voltage is 246V and the breakdown voltage is ranged from 190V to 210V.
I suggest you read this entire post till the end as I’ll detail the complete introduction to P6KE200A covering datasheet, pinout, features equivalents, and applications of this component P6KE200A.
Introduction to P6KE200A
The P6KE200A is a transient voltage suppre ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to 74HC14. 74HC14 is a member of 74XXXX integrated circuit series, it consists of logic gates. This module is also called HEX Inverting Schmitt Trigger. It is available in six independent Schmitt trigger input inverters with standard push-pull outputs. The boolean function performed by this logic gates is Y=A. It is a 14 pin module which is available in various packages.
The 74HC14 works on the voltage range of 2.0V to 6.0V. This is a higher speed CMOS Schmitt Inverter mounted with a silicon gate C2MOS technology. In today's post, we will have a look at its pinout, construction, specifications, applications, working, etc. I will al ...
Hi Guys! I hope you’re well today. Happy to see you around. In this post today, I’ll walk you through the Introduction to LM747.LM747 is a general-purpose dual-operational amplifier IC. This chip contains two operational amplifiers on board and belongs to the LM’xx’ family where LM stands for linear monolithic. In this chip, analog components are incorporated into silicon.
I suggest you buckle up as I’ll detail the complete Introduction to LM747 covering datasheet, pinout, features, equivalents, and applications.
Let’s jump right in.
Introduction to LM747
Designed by National Semiconductor, LM747 is a general-purpose dual-operational amplifier integrated chip.
Two operational amplifiers are incorporated that share common power supply leads and a bias network.
...
Hello readers, I hope you all are doing great. Today, we are going to start the second section of the ESP32 tutorial series and today's our first tutorial, where we will have a look at How to Create a Web Server with ESP32. In our previous tutorial, we introduced you to the basics of the ESP32 microcontroller. where we discuss How to set up Arduino IDE to program ESP32. In this tutorial, we will discuss creating a web server using the ESP32 module.One of the most interesting features of the ESP microcontroller series is its wireless connectivity via WiFi & Bluetooth. Wireless connectivity protocols supported by ESP32 are:
Wi-fi: 802.11b/g/n/e/i
Bluetooth : BLE(Bluetooth low energy) and V4.2
What is a Web server?
A web server is software or hardware that stores, processe ...
Hello Friends! Hope you’re well today. I welcome you on board. In this post today, I’ll walk you through the Introduction to IRF730.
The IRF730 is an n-channel MOSFET where major charge carriers are electrons and conduction in the transistor is carried out due to the motion of these electrons. It comes with a TO-220 package where the drain-to-source breakdown voltage is 400V and power dissipation is 100W.
I suggest you read this post all the way through as I’ll be discussing the complete Introduction to IRF730 covering datasheet, pinout, features, power ratings, equivalent, and applications.
Let’s jump right in.
Introduction to IRF730
The IRF730 is an n-channel MOSFET mainly used for switching and amplification applications in the electrical ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to BD139. BD139 is a Bipolar NPN transistor, it is mounted in the SOT-32 plastic package. It is designed for audio amplifier and driver utilizing complementary circuits. BD139 has a gain value of 40 to 160, which determine the amplification capacity of a transistor. It has three main pinouts which are a collector, base and emitter. It is used to control (On/Off) bigger loads that consume less than 1.5A.
BD139 is used in different industrial projects such as RF amplifier and Switching Circuits. In today's post, we will have a look at its pinout, Arduino interfacing, applications, Specifications, etc. I will also share some links whe ...
The Internet of Things ( or IoT) is a network of interconnected computing devices such as digital machines, automobiles with built-in sensors, or humans with unique identifiers and the ability to communicate data over a network without human intervention.
Hello readers, I hope you all are doing great. In this tutorial, we will learn how to send sensor readings from ESP32 to the ThingSpeak cloud. Here we will use the ESP32’s internal sensor like hall-effect sensor and temperature sensor to observe the data and then will share that data cloud.
What is ThingSpeak?
Fig. 1: ESP32 ThingSpeak
It is an open data platform for IoT (Internet of Things). ThingSpeak is a web service operated by MathWorks where we can send sensor readings/data to the cloud. We ...
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 ...
