Robotics Lab

New project 😍

🚲 Bike Guard App – স্মার্ট বাইকের স্মার্ট সিকিউরিটি
🔐 মোবাইল অ্যাপ থেকে বাইক Lock / Unlock
👉 Fingerprint Unlock
👉 Face Unlock
👉 Secure PIN Password
👉 ভুল চেষ্টায় Unlock অটো ব্লক
📍 লাইভ লোকেশন ট্র্যাকিং
🚀 রিয়েল-টাইম স্পিড মনিটর
🛡️ শক্তিশালী Anti-Theft Protection
আপনার বাইক এখন আপনার ফোনের সাথেই সুরক্ষিত 📱
সব কন্ট্রোল, এক অ্যাপে।

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‎🔌 ESP32 and esp8266 Smart Home Control App
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‎I’ve developed a simple Android Smart Home App to control ESP32-based relay modules over WiFi.
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‎📱 How it works:
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‎Enter ESP32 IP address in the app
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‎Connect both phone & ESP32 to the same WiFi
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‎Control up to 6 relays using ON/OFF switches
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‎Communication is done via local HTTP server (no cloud needed)
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‎🔧 ESP32 Setup:
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‎Upload the ESP32 Arduino code
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‎Set your WiFi SSID & password
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‎Check Serial Monitor (115200 baud) to get ESP32 IP
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‎Use that IP inside the app
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‎🚀 Features: ✔ Fast local WiFi control
‎✔ No internet required
‎✔ Simple & clean UI
‎✔ ESP32 WebServer based
‎✔ Google Drive link for source code inside the app
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‎🏠 Perfect for home automation, IoT learning & ESP32 projects.
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‎📲 Coming very soon on Google Play Store!

🙂

RTL8720DN – WiFi + Bluetooth Module | Perfect for Smart IoT Projects! 🔧
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‎Today, I’m introducing you to a powerful IoT module – the RTL8720DN. If you're looking to build a smart project with both WiFi and Bluetooth capabilities, this module is a perfect choice!
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‎⚙️ Key Features of RTL8720DN:
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‎✅ Dual-Core Processor – Cortex M4 & M0
‎✅ Dual Band WiFi – 2.4GHz & 5GHz
‎✅ Built-in Bluetooth 5.0
‎✅ Arduino IDE supported
‎✅ Supports SPI, I2C, UART, PWM, GPIO
‎✅ 2MB Flash + 512KB RAM
‎✅ Operates at just 3.3V
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‎🎯 Ideal for Projects Like:
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‎WiFi-based Door Lock System
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‎Home Automation
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‎Sensor Monitoring with MQTT/HTTP
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‎Wireless Camera Systems
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‎Cloud-connected Smart Devices
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‎🧰 Want to use it with Arduino IDE? It's super easy!
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‎You can directly program RTL8720DN using Arduino IDE. Just add the board support package via Board Manager and you're ready to go!
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‎📦 Why Choose RTL8720DN?
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‎Excellent networking performance
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‎High efficiency at low power
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‎Advanced BLE & WiFi combo support
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‎🤖 If you're into electronics or IoT development, this module can be a powerful tool in your hands.
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‎📩 Like the post? Share it! And drop a comment telling us what kind of project you'd like to build with it!
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‎website : www.roboticsleb.com
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তুমি কি আমার আকাশ হবে ❣️

Our operations will resume very soon. Stay tuned.

Find 1.5 K 🙂

Check the first comment for full code and details.

https://roboticsleb.com/arduino-and-max7219-dot-matrix-display/

Arduino and MAX7219 Dot Matrix Display A Complete Guide Learn to use the MAX7219 Dot Matrix Display with Arduino, covering wiring, coding, and daisy-chaining multiple displays.