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GY-511 Compass Module Features Magnetic current and field are directly related to each other. When current flows in a wire (electrons start travelling in one direction), a magnetic field is created. The main idea of ​​compass sensors is based on this relationship. The direction of the earth's magnetic field affects the flow of electrons in the sensor. By measuring these changes in current, the sensor will be able to detect directions. The GY-511 module uses the LSM303DLHC chip to detect and direct magn...

APDS-9930 Ambient Light Sensor Features This module consists of ambient light , IR and proximity sensors. The detection distance is up to 100 mm. The APDS-9930 sensor measures the ambient light. This sensor can also detect 0.01 Lux brightness in the dark. It can also be used behind dark glass like a mobile screen. For example, it turns off the touch screen during voice calls when your ear is close to the screen.This sensor can be used to adjust the brightness of mobile backlight and the approp...

Overview A potentiometer is a device that can change its resistance by moving a contact along a fixed resistor. It has three terminals: one connected to each end of the resistor and one connected to the movable contact. By adjusting the position of the contact, the potentiometer can divide the input voltage into different output voltages [Read more in Wikipedia]. Potentiometers work by creating a voltage drop across the resistor that is proportional to its length. For example, if the input voltage is 10...

What is Temperature Switch/Thermo Switch/Thermostat? Thermo Switches are smart little devices that operate automatically when they reach a specific temperature (either open or close). They’re a crucial part of heating/cooling systems because they control and regulate the temperature. How do Thermal Switches Work? Thermo switches operate based on the contraction and expansion of a bimetallic strip and the difference in their expansion coefficient. In this article, we won’t go into much detail, but to p...

NanoPi Duo Board Features The NanoPi Duo Board functions like a compact computer, offering a range of features. Its main processor—Allwinner H2+—provides sufficient processing power through its Cortex-A7 quad-core processor. The board also comes with DDR3-type Memory available in two models: 256MB and 512MB.The NanoPi Duo board includes USB ports that allow you to connect peripherals such as a keyboard, mouse, storage device, or Wi-Fi dongle. In addition, you can connect the internal Ethernet port o...

Introduction Welcome to our step-by-step tutorial on ESP32CAM! Are you curious about the exciting world of the Internet of Things (IoT) and eager to level up your video skills? In this comprehensive tutorial, we’ll get to know the ESP32CAM module. Whether you're a tech enthusiast, a student, or a developer with a passion for IoT, this tutorial will equip you with the knowledge and skills needed to bring your related projects to life. We'll walk you through every step, from interfacing the ESP32CAM module ...

Introduction Welcome to the world of innovation with Raspberry Pi Pico! This article explores voice recognition and wake word detection using machine learning techniques. Discover how to leverage Raspberry Pi Pico's capabilities to create intelligent devices that respond to voice commands. Join us as we explore the exciting possibilities for smart home technology, robotics, and more. Imagine you could use the machine learning capability on microcontrollers such as Rasp...

Overview Discover the fundamentals of web scraping with Python on a Raspberry Pi. This tutorial will guide you through the process of automatically extracting desired information from websites. As an illustration, we will extract news headlines from the Tech News page of the Reuters website and send them to a designated email account at specific times. What You Will Learn Web scraping basics in Python Implementation of Web scraping projects on the Raspberry Pi board H...

Overview In this tutorial, you’ll get to know how to use the rotary encoder. First, you’ll see some information about the rotational encoder, and then you’ll learn how to use a rotary encoder with three practical examples. What You Will Learn What the rotary encoder is and how it works. Displaying encoder position Controlling a LED light using a rotary encoder Controlling a DC moto...

Overview Power outages are one of the main problems for computers and electrical systems. Sometimes there is data and information in your system that you do not want to be deleted with a power outage. If you do not want your data and information to be lost when the power supply is disconnected, a simple way is to save your data to EEPROM memory.In some projects, such as a 3D printer, when the system is reset, the relevant data can be stored in EEPROM memory to calibrate the equipment and initialize it. ...