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IoT Tutorials & Insights

Real IoT project guides by Rafiul Islam. Click any post to read on Medium.

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I Built an AI-Powered Banglish Keyboard That Converts Text Instantly — Here’s How

From a simple idea to a dual-platform tool powered by Groq AI.

Rafiul Islam

Jul 28, 2026 · ⏱ 6 min

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I Built a Bike Security System with GPS and GSM on ESP32 — Here’s What I Learned (Including What Broke)

ESP32GPS

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I Built a Bike Security System with GPS and GSM on ESP32 — Here’s What I Learned (Including What Broke)

A hands-on journey through RFID authentication, GPS tracking, vibration detection, and the honest story of a GSM module that refused to cooperate.

Crypt_AccessIQ: Building a Full-Stack IoT Access Control System with ESP32, Firebase, and React

A complete technical deep-dive — from hardware wiring to cloud dashboard — including every mistake I made along the way.

Building a Fullscreen Animated GIF Player on ESP32 with ST7735 TFT Display

How I stored 6 Marvel & Anime GIFs directly in ESP32 Flash memory — no SD card needed…!

We Are Standing in the Middle of a Revolution — And Most People Haven’t Realized It Yet

Some changes come slowly. And some changes come in a way where you don’t even realize when the entire world has shifted.

5 Expensive Mistakes I Made Building My First Robot

What I learned from fried components, wasted debugging time, and one very expensive Arduino.

ESP32 vs Arduino: I Wish Someone Had Told Me This Before My First IoT Project

After building projects on both boards, here’s what I wish someone had told me from day one.

How I Built a Robot That’s Afraid of Heights: My First Arduino Project

Building my first autonomous robot taught me more than any textbook could.

Feb 13, 2026

⏱ 8 min

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