Beyond the Basics: Building a Zero-Lag 4WD Smart Car with Arduino R4 WiFi and ESP32
I Smashed My First WiFi Car into a Wall (And Why You Will Too) I watched…
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Stop Using “Smart Sync” for Relays: Why “Dumb” Code Wins in IoT
I almost lost a client last week. They asked for a simple, long-range industrial remote to…
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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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ESP32 Pinout Reference: GPIO, ADC & Safe Pins Guide
ESP32 Pinout Guide: Avoid Common Mistakes with GPIO Pins Download ESP32 Pinout Cheat Sheet (High Resolution)…
