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Arduino Soil Moisture Sensor Tutorial - Complete Wiring Guide & Code Whether you're a beginner learning how to connect a soil moisture sensor with Arduino or building advanced automatic plant watering systems, this step-by-step tutorial covers everything you need. We'll show you the exact Arduino soil moisture sensor wiring diagram, provide working Arduino soil moisture sensor code, and guide you through common troubleshooting scenarios that… |
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Felini - The Swiss Army Knife of Electronic Debugging Tools Chu Tien Thinh, an electronics engineer and enthusiast, has created a highly portable debug and test tool named Felini, designed to provide numerous hardware control and debugging functionalities in a small, cost-effective device. Thinh found inspiration for Felini from his struggle to lug around a backpack filled with various tools… |
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Anechoic Chamber Used for Electronics Testing Devoid of electromagnetic waves, an anechoic chamber (Figure 1) is a shielded room designed to provide an ideal environment for testing electronics. Anechoic means free from echoes—or non-reflective. These chambers are used in compliance testing. The surfaces of anechoic chambers are lined with carbon-based absorbing materials (Figure 2) and ferrite tiles in order to… |
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What is Switch Bouncing and How to prevent it using Debounce Circuit Table of Contents What is Switch Bouncing and Debouncing? What is Software Debouncing? Switch Bouncing Circuit Diagram 1. Hardware Debouncing └ Components Required └ Debounce Circuit Diagram └ Working of the Hardware Debounce Circuit 2. RC Debounce Circuit 3. Debouncing Circuit for Push Button Using Specialised ICs Debouncing Methods… |
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UnoArduSim : A Simulator to Learn Arduino Programming and Debugging Codes without Arduino Board In this comprehensive UnoArduSim tutorial, I will be taking you through one of the best Arduino simulators out there for programming, and debugging without hardware. Whether you are searching for UnoArduSim download instructions or how to utilise this robust UnoArduSim software, this tutorial shows you everything you need to know about the Uno Ardu Sim platform. Arduino Uno is one of… |
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Automatic Irrigation System using an Arduino Uno Every one of us likes a little greenery in our houses, don’t we? Plants require really low maintenance and can be left for days without supervision, but our long trips extending over a week or 2 can be detrimental to the health of plants due to the lack of moisture in the soil. In such situations, the plant may wither or die due to the absence of proper watering. In order to… |
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DIY ESP32 Based Audio Player DIY Music players are fun to build, and we previously built a few music players using Arduino and a dedicated MP3 module. Now we are using the ESP32 speaker output to build an interesting audio player, in which you can add sound effects by just connecting an extra speaker to the ESP32. Here we will use LM386 and a speaker with ESP32 to play music files. The audio… |
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ESP32-CAM Face Recognition Door Lock System Security is of utmost concern for everyone these days, whether it's data security or security of their own home. With the advancement of technology and the increasing use of IoT, digital door locks have become very common these days. Digital lock doesn’t require any physical key, but it uses RFID, fingerprint, Face ID, pin, passwords, etc. to control the door lock. In the… |
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pH Meter using Arduino Uno and LCD Display The pH scale is used to measure the acidity and basicity of a liquid. It can have readings ranging from 0-14, where 0 shows the most acidic liquid and 14 shows the most basic liquid. 7 pH is for neutral substances that are neither acidic nor basic. Now, pH plays a very important role in our lives, and it is used in various applications. For example, it can be used in a… |
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QR Code Scanner using Raspberry Pi and OpenCV QR code (Quick Response code) is a type of matrix barcode that contains information about the item to which it is attached, like location data, identifier, or a tracker that identifies a website or app, etc. It is a machine-readable optical label in the form of a 2D image with a unique pattern. To learn more about QR codes and how to generate a QR code, follow our previous… |
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Interfacing ADXL345 Accelerometer with Arduino UNO We all know about accelerometers and gyroscopes; they are primarily used to detect acceleration. While an Accelerometer can measure linear acceleration, the gyroscope can help find the rotational acceleration. A gyroscope is used to measure angular velocity, which uses the Earth’s gravity to determine the orientation of the object in motion. There is a sensor like… |
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Simple H-Bridge Motor Driver Circuit using MOSFET At the outset, driving a motor might seem like an easy task – just hook the motor up to the appropriate voltage rail and it will start rotating. But this is not the perfect way to drive a motor, especially when there are other components involved in the circuit. Here, we will discuss one of the most commonly used and efficient ways to drive DC motors, the H-Bridge circuit.… |
