Hello readers, we hope you all are doing great. Welcome to the 4th lecture of Section 5(ESP32 Sensor) in the ESP32 Programming Series. So far, we have discussed the ESP32 built-in sensors in this section. Today, we are going to interface an external embedded sensor(i.e. PIR Sensor) with the ESP32 Microcontroller board. At the start, we will discuss the basics of a PIR Sensor(HC-SR501) i.e. its pinout and working. After that, we will design a simple project to detect the motion with a PIR sensor and ESP32. Finally, we will display the motion detection results on the ESP32 WebServer.
We will use ESP32 interrupts to detect the motion. Interrupts are used when a microcontroller needs to continuously monitor an event while executing other tasks at the same time. We have already posted a tuto ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at a detailed Introduction to MSP430. MSP430 is a microcontroller portfolio that offers different varieties of sixteen-bit Microcontrollers. These microcontrollers are integrated with ultra-low power and digital and analog peripherals devices for sensing and measurement applications. MSP430 microcontrollers with non-volatile FRAM (ferroelectric random access memory) provide the lowest stand-by power (350nA with RTC), 100 µA/MHz active power and have the capability to recover system state after sudden power failures.
MSP430 is used in different applications such as sensor systems which receive analog signals and convert them into digital values and after processing send these values to host syst ...
Hello readers, I hope you are all doing great. In this tutorial, we are going to discuss the OTA web updater on the ESP32.
We already covered the fundamentals of OTA programming in ESP32, in our previous tutorial where we used the Arduino IDE to upload OTA code into the ESP32 module using the network port.
In the OTA web updater, you need to create a web server page for OTA programming.
[caption id="attachment_166886" align="aligncenter" width="1920"]
ESP32 OTA web updater[/caption]
Fig.1 ESP32 OTA web updater
Over the Air Web Updater
"Over-the-air" refers to the ability to wirelessly download an application, configuration, or firmware to internet-enabled devices, also known as IoT. (OTA). It functions similarly to our computers, laptops, tab ...
Hi Guys! Hope you’re well today. I welcome you on board. In this post today, I’ll walk you through the Introduction to Arduino Nano 33 BLE.
Arduino Nano 33 BLE is an advanced version of Arduino Nano board that is based on a robust and powerful processor the nRF52840 from Nordic Semiconductors, a 32-bit ARM® Cortex™-M4 CPU. It comes with a crystal oscillator frequency of around 64MHz. It features 32 times bigger program memory than the Arduino Uno board, helping you store programs with much larger memory. With this device, you can produce a lot more variable as it comes with RAM that is 128 times bigger than the RAM of Arduino Uno.
Before you move further, I recommend you read this article on the Introduction to Arduino Nano which we have publish ...
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 Friends! Hope you're well today. I welcome you on board. In this post, we'll discuss surprising applications of servo motors.
Servo motors also called “servos” or “control motors”, are electrical devices used for the precise control of position, torque, or speed of an object.
They can help in rotating or pushing items at a certain angle or distance. This actuation device has been around for quite some time. Servo motors are widely practiced in different industries.
Servo Motor Applications
A servo motor may appear small but this tiny beast is packed with countless capabilities that make certain objects function more effectively. Projects that require maximum precision rely on this electrical device. You should also have a look at Servo Motor ...
Hey Fellas! Hope you are doing great. I am here to give you the daily dose of information relating to engineering and technology. Today, I am going to give you the details on the Introduction to 2sc4617. It is an NPN (negative-positive-negative) transistor which is used for general purpose amplification. This component comes in SC-75/SOT-416 sealed package which is mostly used for low power applications. I am going to explain the brief overview of 2sc4617. Let's get started.
Introduction to 2sc4617
2sc4617 is a three terminal NPN silicon transistor which consists of two N doped layers which cover one P doped layer. It is a bipolar transistor which is usually used for amplification purpose.
Small amount of base current is used to handle the la ...
Digital festival greetings are increasing fast when the audiences are adopting visual rich messages. Holiday videos that are animated can be used to establish more emotional connections as compared to inactive cards. Numerous labels and personalities are seeking motion designs that are refined and significant. Good imagery encourages better interaction particularly in cultural and seasonal festivals. This growing need has enhanced the urge towards platforms that produce professional outcomes under lesser effort. Pippit gets into this space as a creative festival message generator, which makes the whole process simple and production fast.
Shortcomings Of Traditional Digital Festival Cards
The conventional digital cards are usually limiting since static graphic editors inhibit creativity. ...
Hi Friends! Hope you’re well today. Happy to see you around. In this post, I’ll detail the Introduction to Arduino UNO REV3.
Arduino Uno REV 3 is an Arduino board based on the microcontroller ATmega328P. It carries 14 digital I/O pins out of which 6 can be used as PWM outputs. Moreover, 6 analog input pins are available on the board and the clock frequency is 16MHz.
Arduino UNO is one of the most used boards from the Arduino family. The robust and clean design helps you shape your ideas into reality.
Know that Arduino UNO REV3 is an advanced version of Arduino UNO. The new version includes four solder pads JP2 attached with the pins PB4 to PB7 of the USB ATmega.
Uno stands for one in Italian and this name was picked for the release of Arduino ...
Flow visualization widely uses Computational Fluid Dynamics (CFD) and physical experiments. So following are the types of patterns that can be visualized computationally and experimentally. So without wasting any time, let us start.
Streamlines and Streamtubes
There are two patterns. I will first explain the streamlines. So the definition of streamlines is as follows:
A streamline is a curve that is tangent everywhere to the instantaneous local velocity vector.
You might not understand the definition by reading it, so just for your ease, let me explain to you in few key points:
A streamline defines fluid’s motion throughout the flow field.
A streamline acts as an indicator of the instantaneous direction of motion of the fluid. To explain this situation, let me exemplify it with an ex ...
