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Overview In this article, we will explore the process of setting up an ESP32-based web server using the popular Arduino IDE, accompanied by practical examples to illustrate the key concepts. By the end of this guide, you will have a solid understanding of how to harness the power of the ESP32 microcontroller to create your own web server. If you are a beginner to ESP32, we recommend reading Getting Started with the ESP32 on Arduino IDE What You Will Learn Getting to know the web server ...

Overview In addition to familiar Arduino boards, there are other options for use in electronic projects. One of these options is STM microcontroller. STM microcontrollers are based on ARM structure, and they are available at affordable prices. In this tutorial, you’ll learn how to use the STM32F103C8T6 board.  What You Will Learn Introduction of ST microcontrollers and ARM structure Introduction of STM32F103C8T6 board The required softw...

Introduction If you are interested in electronics, you have probably dealt with an oscilloscope. This device is a crucial tool for analyzing circuit performance. Most professional oscilloscopes, however, are often large, heavy, and expensive. In this tutorial, we will show you a practical and affordable solution for building your own oscilloscope and logic analyzer. All you need is a Raspberry Pi Pico/Pico W and an Android app called Scoppy.  This oscilloscope can connect to an Android device, givi...

Active Buzzer Features A buzzer is a device used to produce sound. There are two types of buzzer: active and passive. In the active model, buzzer starts playing sound only if connected to a power supply, but in the passive model, we need to send a pulse from the microcontroller to play sounds.  The supply voltage of the buzzer is 3 volts, 5 volts and 12 volts.  You can download the active buzzer datasheet here. [wpdm_package id='16843'] Active Buzzer Module Pinout This Modu...

Overview The Raspberry Pi boards include a CSI port to connect a camera. In this tutorial, you’ll learn how to use and connect a camera to Raspberry Pi boards.For this tutorial, you need to install the Raspbian operating system on your board. What You Will Learn How to connect a camera to Raspberry Pi board Controlling the camera using a python script Taking pictures with Raspberry Pi camera ...

Overview The multimeter is an indispensable tool for any electronics project, as it helps overcome countless challenges during project completion. This article will demonstrate how to create a cost-effective digital multimeter using an Arduino board and an OLED display. This multimeter is capable of measuring voltage, current, resistance, and capacitance. Upon completing the project, you will have your own multimeter at the lowest possible cost. What You Will Learn Underst...

Buzzer Features A buzzer is a device used to produce sound. There are two types of buzzer: active and passive. In the active model, buzzer starts playing sound only if connected to a power supply, but in the passive model, we need to send a pulse from the microcontroller to play sounds. The supply voltage of the buzzer is 3 volts, 5 volts and 12 volts. You can download the passive buzzer datasheet here. [wpdm_package id='16469'] Passive Buzzer Module Pinout Buzzer has 2 pins: DATA and GND but t...

ACS712 Current Module Features ACS712 chip is used to measuer DC/AC current based on the Hall effect. This chip is produced in 3 models with different maximum currents. Different models and output sensitivity of each model are shown in the table below: Sensor sensitivity means that, for example, if you use 5 amp model, as input current increase 1 amp, the output voltage of the sensor increases about 185 mV. Note When input is not connected to something and th...

Discover the capabilities of the ZMPT101B voltage sensor and learn how to interface it with Arduino for precise AC voltage measurement. This voltage transformer module allows you to measure AC voltages up to 250 volts with analog output. As the input voltage changes, the output voltage of the sensor adjusts accordingly. What is ZMPT101B Voltage Sensor? The ZMPT101B is a voltage transformer used to measure AC voltage. You can measure AC voltages up to 250 volts by using this module. The output of th...