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Autonomous High-Speed Swerving Vehicle using the VL53L5CX Sensor The primary objective is to develop a high-speed autonomous vehicle that utilizes a VL53L5CX multizone Lidar sensor to execute fluid, real-time swerving maneuvers instead of traditional "stop-and-turn" movements. By leveraging 8x8 spatial depth mapping, the system maintains continuous forward momentum while proactively navigating around obstacles via a timed S-curve… |
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ESP32 Interactive Voice Response (IVR) System with GeoLinker Integration Nowadays, automation has become a common part of our daily lives. From simple tasks like operating a coffee machine to creating code for complex applications, many processes are now automated. However, most systems used for controlling devices depend on internet connections, mobile applications, or cloud platforms. In many places, internet availability may be poor or… |
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Getting Started with Arduino UNO Q - Beginners Guide From blinking LEDs to building robots, the Arduino UNO was the development board that made electronics feel possible for students, professionals and a lot of hobby makers around the world. While keeping the familiar idea of Arduino UNO and its form factor the same, they have launched this board called the Arduino UNO Q, which is a more capable variant of the original… |
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ESP32 Bluetooth Jammer Using Dual NRF24L01 Modules Bluetooth communication is everywhere. Due to its low power consumption, we can see it in a lot of our day-to-day gadgets. Behind the scenes, it's all about signals. Let’s explore what really happens when data is transmitted or disturbed via Bluetooth. This project is based on an ESP32 and two NRF24L01 modules, and we are going to learn how we can generate a 2.4 GHz… |
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Low-Cost Offline Voice Recognition Module Alternatives to VC-02 Voice control technology has become an important part of modern human-machine interaction. It allows users to control electronic devices and systems using simple spoken commands instead of traditional input methods such as buttons, switches, or touch screens. This type of interaction makes devices easier to use, more accessible, and more convenient in many… |
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How to Send an Image on WhatsApp Using ESP32-CAM We use WhatsApp almost every day so much that it has become an unavoidable part of our routine. From a simple “good morning” message to a friend to a “good night” text to family, most of our daily communication happens through it. Beyond just messages, we constantly share moments from our lives by capturing photos on our phones and instantly sending them to others.… |
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DIY Handheld Arduino Game Console With 10 Retro Games Tired of building the same old Arduino projects like blinking LEDs, temperature monitors, and line-following robots? Now it’s time for something fun. It’s time to turn your skills into entertainment by creating your very own Arduino game console project. Instead of just testing circuits, imagine powering up a device you built yourself and jumping straight into… |
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Build a Simple Optocoupler Tester Circuit for Fault Detection Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials… |
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Adding a Wi-Fi Camera to the LiteWing ESP32 Drone for Hobby Flights. We love tinkering with our LiteWing ESP32 drone, and this time we gave it a simple but exciting upgrade, a WiFi camera module! With this addition, the drone can now stream live video while flying, perfect for hobby flights, aerial experimentation, or just having fun seeing the world from above. On the technical side, the setup… |
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How to Send Email Notifications using ESP32-CAM In recent years, the demand for smart security and automated monitoring systems has increased significantly due to growing safety concerns and the need for real-time surveillance. Traditional security systems often require continuous human supervision, which can be inefficient and time-consuming. With the advancement of embedded systems and Internet of Things (IoT)… |
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How to Send Email Notifications from ESP32 using CircuitDigest Cloud In this tutorial, we will learn how to send an email from your ESP32 microcontroller. This feature allows important details such as sensor data, time of occurrence, images, and system status to be sent through email in a clear and reliable format. It is especially useful for event-based alerts, maintaining records, and monitoring systems over a long period. By… |
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Raspberry Pi Pico Based Rain Detection System with WhatsApp Alert This project shows how to send instant WhatsApp alerts from a Raspberry Pi Pico W using WiFi and CircuitDigest Cloud WhatsApp API. The Pico W reads data from a rain sensor and, when moisture is detected, sends a notification directly to your WhatsApp. No GSM module, SIM card, or cellular hardware is required and everything works over a secure HTTPS request. The same WhatsApp notification… |
