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Understanding the DHT11 Sensor The DHT11 sensor is a basic, low-cost digital sensor for sensing temperature and humidity. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and provides a digital signal on the data pin. Wiring the DHT11 to the ESP32 The DHT11 sensor has four pins, but only […]
Introduction: In this tutorial, we will guide you through the process of building a simple yet effective laser security system using readily available components such as an ESP32 microcontroller, a laser module, a Light Dependent Resistor (LDR), and a buzzer. This system will detect unauthorized entry by sensing interruptions in the laser beam and trigger [...]
Interfacing an HC-SR04 ultrasonic sensor with an ESP32 microcontroller opens up a world of possibilities for projects ranging from distance measurement to object detection. In this tutorial, I'll guide you through the process step by step. Required Components: ESP32 development board HC-SR04 ultrasonic sensor Breadboard Jumper wires USB cable for programming August 8, 2023ESP32 Node [...]
In this tutorial, we will learn how to interface an SG90 servo motor with an ESP32 microcontroller. The SG90 is a popular micro servo motor used in various DIY electronics projects due to its compact size and ease of use. The ESP32 is a powerful microcontroller with built-in Wi-Fi and Bluetooth capabilities, making it suitable [...]
In this tutorial, we will learn how to create a fire alert system using the Blink platform and ESP32 microcontroller. This system will monitor the status of a fire sensor and send a notification to your mobile device when a fire is detected. Additionally, it will activate a buzzer to provide an audible alert. Hardware [...]
In today's interconnected world, the concept of a "smart home" has transitioned from a futuristic dream to a tangible reality. With the advancements in Internet of Things (IoT) technology, creating a smart home that adapts to your needs and enhances your lifestyle has become more accessible than ever. One of the popular platforms for building [...]
Introduction: In the realm of microcontroller projects, interfacing sensors with devices like the ESP32 provides a versatile platform for creating intelligent systems. This blog will guide you through the process of connecting and programming an LDR (Light Dependent Resistor) Light Sensor Module with the ESP32 without the use of Wi-Fi. This simple yet effective setup […]
Introduction: Soil moisture plays a crucial role in agriculture, gardening, and environmental monitoring. Monitoring soil moisture levels can help optimize irrigation, prevent overwatering, and ensure the health of plants. In this blog post, we will explore how to interface a soil moisture sensor with the ESP32 microcontroller using an I2C module, providing an efficient and [...]
Introduction: In this tutorial, we will learn how to interface an Infrared (IR) sensor with the ESP32 microcontroller. The IR sensor used in this tutorial consists of two IR LEDs and three pins, making it a simple and cost-effective choice for various applications like obstacle detection, proximity sensing, and remote control systems. Components Needed: August [...]
Introduction: In this tutorial, we will learn how to interface a Passive Infrared (PIR) sensor with the ESP32 microcontroller. PIR sensors are widely used for motion detection and can be incorporated into various IoT projects for home automation, security systems, and more. The ESP32, with its built-in Wi-Fi and Bluetooth capabilities, provides an excellent platform [...]
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