06Feb

PZEM-004T Energy Meter with ESP32 – Complete Guide (Voltage, Current, Power & Energy Monitoring)

IntroductionWith the rise of IoT-based energy monitoring systems, measuring electrical parameters like voltage, current, power, and energy consumption has become essential for smart homes, industries, and research projects. The PZEM-004T v3.0 energy meter module combined with the ESP32 microcontroller is a powerful, low-cost solution for real-time AC power monitoring.In this blog, we will learn how to interface PZEM-004T with ESP32, understand its working principle, wiring, and Arduino code, and explore real-world applications.What is PZEM-004T?The PZEM-004T is a single-phase AC energy...

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01Feb

How to Use OTA with ESP32 (Over-The-Air Firmware Update Guide)

IntroductionUpdating firmware on an ESP32 using a USB cable every time can be frustrating—especially once the device is installed inside an enclosure or deployed remotely.That’s where OTA (Over-The-Air) updates for ESP32 OTA come in.Firmware updates are crucial for maintaining the security and functionality of your devices. Regular updates can patch vulnerabilities and introduce new features, making OTA updates an essential practice for IoT developers.This method not only enhances convenience but also significantly reduces downtime and manual intervention, especially beneficial for...

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30Jan

ESP32 with 1.3 inch OLED display

IntroductionThe ESP32 with 1.3 inch OLED display is one of the most popular combinations in IoT and embedded electronics projects. The ESP32 offers built-in Wi-Fi and Bluetooth, while the OLED display provides a compact, low-power, and high-contrast output interface.In this guide, you will learn how to connect a 1.3-inch OLED display to ESP32, understand the I2C communication process, explore required libraries, and discover real-world project applications.Why Use a 1.3 Inch OLED Display with ESP32?Using a 1.3 inch OLED display with...

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16Jan

Robotics Components in Kanpur – Buy Arduino, Sensors & IoT Kits Locally

Are you searching for robotics components in Kanpur for projects, training, or experiments?IoT Web Planet is your one-stop destination for genuine robotics and IoT components, trusted by students, educators, and innovators across Kanpur.From Arduino boards to sensors and complete robotics kits, we provide everything you need to build real-world robotics projects.📍 Why Buy Robotics Components in Kanpur?Buying robotics components locally has many advantages:Faster availability (no long delivery wait) Genuine and tested components Easy guidance & technical support Ideal for students,...

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ESP32 with ZMPT101B voltage sensor AC voltage measurement circuit
ESP32 with ZMPT101B voltage sensor AC voltage measurement circuit2
13Jan

ESP32 with ZMPT101B Voltage Sensor – Complete AC Voltage Measurement Guide (2026)

IntroductionMeasuring AC voltage using ESP32 is a common requirement in IoT, energy monitoring, and automation projects. In this guide, we explain how to use the ZMPT101B AC voltage sensor with ESP32 to accurately measure AC voltage measurement with ESP32 using Arduino IDE. This tutorial is ideal for students, hobbyists, and IoT learners in India working on real-world electronics projects.Understanding AC voltage measurement with ESP32 can greatly enhance your IoT projects.👨‍🎓 Who Should Use This...

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