Why the DS18B20 is My Go-To for Liquid Projects
The Hook: The Day My “Waterproof” Sensor Leaked The smell hit me the moment I opened…
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Build Your Own Automatic ON OFF Timer Switch: The “Devraj Lab” Edition (ESP32 + WiFi)
I hate mechanical timer switches. There, I said it. I spent years working as an embedded…
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The Tale of Two Weather Stations: ESP32 vs. Uno R4
The 2 AM “Sensor Not Found” Nightmare It was 2:00 AM. My coffee was cold, and…
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I Finally Mastered the DHT11 Temperature and Humidity Sensor
Let’s be real for a second. The first time I tried to build a simple weather…
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Water Level Indicator Project: Real-Time Monitoring
The 3 AM Panic That Started Everything My water tank overflowed at 3 AM. Again. Water…
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The Complete Microcontroller Development Boards Guide 2026
Complete Microcontroller Boards Infographic [Download High-Resolution Infographic Infographic] Microcontroller Boards Guide – Quick Overview Short on…
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RFID Based Attendance System Using ESP32 with Firebase and Google Sheets
What You’ll Build in This Project: The system reads RFID tags and uploads attendance data instantly…
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What IoT Means: A Beginner’s Guide to the Internet of Things
Visual Guide: Understanding IoT Fundamentals and Real-World Applications Download IoT Beginner’s Guide Infographic (High Resolution) Video…
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ESP32 Pinout Reference: GPIO, ADC & Safe Pins Guide
ESP32 Pinout Guide: Avoid Common Mistakes with GPIO Pins Download ESP32 Pinout Cheat Sheet (High Resolution)…
