Hello readers, I hope you are all doing great. Welcome to the 2nd lecture of Section 5(ESP32 Sensors) in the ESP32 Programming Series. In the previous tutorial, we discussed the built-in ESP32 Hall Effect Sensor. In this tutorial, we will discuss another inbuilt sensor of the ESP32 i.e. Capacitive Touch Sensor.
ESP32 Board has 10 built-in capacitive touch pins, which generate an electrical signal when someone touches these pins. These ESP32 touch pins are normally used to wake up the board from deep sleep mode. These touch pins are also used to replace the normal mechanical buttons with touch pads, improving the presentation of the IoT projects.
Here's the video demonstration of the ESP32 Capacitive Touch Sensor:
Before going forward, let's first understand how this touch sens ...
Hello Friends! I hope you are well. Today, I am going to give you a detailed Introduction to NPN transistor. In this tutorial, we'll look at the NPN transistor, how it works, circuit diagram, output characteristics curve, and applications. It is a bipolar junction transistor mainly used for current amplification and switching purposes.
BJTs (Bipolar Junction Transistor) are divided into two types i.e. NPN transistor and PNP transistor. Both transistors are different in terms of their electrical composition and construction, however, both are used for amplification and switching purposes in one way or the other.
What is NPN Transistor?
NPN transistor is a bipolar junction transistor(BJT), composed of 3 semiconductor layers in a way that o ...
Hello Guys! Hope you’re well today. I welcome you on board. In this post today, I’ll walk you through the Introduction to IRF830.The IRF830 is an n-channel power MOSFET where conduction is carried out by both electrons and holes but electrons are the major carriers and holes are the minority carriers. It is a high voltage and fast switching device that comes with low on-state resistance. You can also check this post on the Introduction to IRF730 that I’ve uploaded previously.
I suggest you buckle up and read this post all the way through as I’ll detail the complete Introduction to IRF830 covering datasheet, pinout, features, equivalent, and applications. Let’s get started:
Introduction to IRF830
The IRF830 is an n-channel power MOSFET where electrons are the major carriers and hol ...
Hello everyone! I hope you all will be fine and having fun. Today, I am going to give you a detailed Introduction to MAX232. It is an Integrated Circuit(IC) embedded in a single chip and acts as a voltage-level converter. MAX 232 is capable of converting 5V TTL Logic level to TIA/EIA-232-F level and can take up to +-30V input. It is normally used for the communication between microcontroller and Laptop/PC.We can use MAX-232 to convert Transistor Transistor Logic (TTL) voltage level to RS232 and vice versa. RS232 is the method of transferring data using serial communication. MAX 232 is a dual receiver or driver having a capacitive voltage generator to supply RS232 voltage levels from a single supply of 5V. Each receiver converts RS232 inputs to 5V either Transistor Transistor Logic (TTL) ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to TIP2955. It is a harmonizing silicon power transistor which is designed to use in universal tenacity power amplifications and swapping submissions. It is a PNP transistor and has a casing of TO-247. It is the complementary device for the TIP3055 NPN transistors. It is used in such applications which need high power input supply.
It is a common expedient used in numerous manufacturing schemes where acoustic intensification is obligatory. Its constructions are good-looking much the alike rejecting for the extreme power tolerance that is somewhat smaller. In today’s post, we will have a look at its protection, wreck, fame, applica ...
Hi Friends! Hope you’re well today. I welcome you on board. In this post today, I’ll describe the Introduction to 74LS74.
74LS74A flip-flop IC carries the Schottky TTL circuitry to generate high-speed D-type flip-flops. Every flip-flop in this chip comes with individual inputs, and also complementary Q and Q`(bar) outputs.
Flip-Flops are normally considered as the basic building blocks of modern digital electronics. These flip-flops are used to store the binary data where stored data can be varied by applying the different inputs.
I suggest you buckle up as in this post I’ll walk you through the complete introduction to 74LS74 covering datasheet, pinout, features, and applications.
Let’s get started.
Introduction to 74LS74
74LS74A flip-flop ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to DS1307. DS1307 is a real-time clock. It is a low power device and also has battery backup, which provides power when its external power supply not working or is off. It works on the I2C protocol. It is a bidirectional device and it can send and receive data on both sides.
DS1307 is used in industrial projects where constant time and date of some projects or working is required. I will give you a detailed overview of this time and date indicator IC. In today's post, we will have a look at its pinout, working, basic circuit, protocol, etc. I will also share some links of projects where I have interfaced it with Arduino and some other Microcontrollers. Friends, if y ...
Hi Guys! Hope you’re well today. I welcome you on board. Thank you for clicking this read. In this post today, I’ll detail the Introduction to UF5408.
The UF5408 is an ultra-fast recovery diode that comes with quick recovery time. It is mainly used to rectify the sine waves. Upon rectifying the signal it converts the AC signal into a DC signal. This diode provides the DC signal to the electronic device since most of the electronic devices operate on the DC signal.
Just stay with me for a little while as I’ll discuss the complete Introduction to UF5408 covering datasheet, pinout, features, and applications of this component UF5408.
Let’s get started.
Introduction to UF5408
The UF5408 is a recovery diode that carries quick recovery time and is ...
Hello readers, I hope you all are doing great. In this tutorial, we will learn how to interface the BMP280 sensor with the ES32 module to get temperature, pressure and altitude readings. Later, in this tutorial, we will also discuss how to upload these sensor readings to a web server.
BMP280
BMP280 or Barometric pressure sensor is a module used to measure temperature pressure and altitude. The small size and low power consumption feature of this sensor makes it feasible for battery-powered devices, GPS modules and mobile applications etc.
Fig. 1 BMP280 Sensor
The BMP280 is the product of BOSCH which is based on Bosch’s proven Piezo-resistive pressure sensor technology featured with high accuracy, long term stability, linearity and high EMC robus ...
Hello readers, we hope you all are doing great. In this tutorial, we are going to demonstrate how to interface and control a servo motor using an ESP32 board. After that, we will demonstrate how to create a webserver to control the servo motor’s shaft position with the ESP32 board.
Servo Motors are among the most important actuators in robotics, with applications ranging from RC planes to automated door locks.
Hardware components required
A servo motor
ESP32 development board
Connecting wires
Breadboard
Servo Motor
There are several specific types of electric motor applications in which the motor must rotate only at a specific angle. For such applications, we need a special type of motor with such a special arrangement that causes the m ...
