Author: Raj Kumar
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ESP32 with Relay Module: Master Complete Beginner-to-Expert Guide
Beginner-friendly guide on using ESP32 with a relay module, covering wiring, safety, code examples, and real-world home automation applications. If you’ve ever wanted to control a light, a fan, a pump, or any AC appliance using Wi-Fi or the internet, an ESP32 with relay module is the simplest and most powerful way to do it.…
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ESP32 With Fingerprint Sensor: Master Complete Beginner-to-Advanced Guide (2026)
Learn how to use an ESP32 with fingerprint sensor in this beginner-friendly guide. Setup, wiring, code, FAQs & troubleshooting for secure IoT projects. If you want to build a secure, fast, and modern IoT project, connecting an ESP32 with a fingerprint sensor is one of the best ways to learn authentication, embedded development, and smart…
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ESP32 with Soil Moisture : Complete Beginner-to-Pro Guide (Full Practical Breakdown)
Learn how to use ESP32 with soil moisture sensor for smart plant monitoring, Blynk, Home Assistant, and automated irrigation projects. What Is Soil Moisture and Why Monitor It? Soil moisture is simply the amount of water held inside the soil.Plants depend on the right balance — too much water can suffocate roots, too little can…
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ESP32 with DS18B20: The Complete Beginner-Friendly Guide You Wish You Had Earlier
Beginner-friendly guide on using ESP32 with DS18B20. Learn wiring, code, troubleshooting, and multiple sensor setup for accurate temperature monitoring If you’re planning to monitor temperature with the ESP32, the DS18B20 temperature sensor is one of the most reliable and accurate options you’ll ever use. It’s waterproof (if you buy the probe version), works on a…
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ESP32 with MQ135: Complete Beginner-Friendly Guide for Air Quality Monitoring
Learn ESP32 with MQ135 gas sensor troubleshooting, calibration, and MQTT integration. Beginner-friendly guide for stable readings and IoT projects. If you’ve ever thought about measuring indoor air quality using a low-cost sensor and a powerful IoT board, using an ESP32 with MQ135 is one of the smartest ways to begin. The ESP32 gives you WiFi,…
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ESP32 with DHT22: Master Complete Beginner Guide (Code, Wiring, Projects)
Learn how to use ESP32 with DHT22 for accurate temperature and humidity monitoring. Get wiring, code, troubleshooting tips, and beginner-friendly guidance. If you want to measure temperature and humidity using an ESP32 in a simple and reliable way, the ESP32 with DHT22 combination is one of the easiest and most accurate setups you can build.…
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ESP32 and DHT11: Master Beginner-Friendly Guide to Building Your First Temperature and Humidity Monitoring System
ESP32 and DHT11 guide for beginners. Learn wiring, code, setup, MQTT, Blynk, Bluetooth, Arduino Cloud, and build your own IoT temperature and humidity monitor. If you’re getting into IoT, home automation, or just love experimenting with sensors, pairing the ESP32 and DHT11 is one of the simplest and most rewarding projects you can build. You…