🌅 Arduino UNO + HC05 Bluetooth🔗 + Mobile Control🌐
I built a simple yet fun project where 3 LEDs (Red🔴, Green🟢, Blue🔵) are controlled wirelessly using a smartphone via Bluetooth (HC05 module).
📲 How it works:
Mobile📳 app sends📨 characters through Bluetooth.
Arduino UNO receives them via UART.
Depending on the command, it switches the corresponding LED ON/OFF.
⚡ Commands used:
a → Red LED🔴 ON
b → Red LED⚪ OFF
c → Green LED🟢 ON
d → Green LED⚪ OFF
e → Blue LED🔵 ON
f → Blue LED⚪ OFF
🛠️ Tech Stack: Arduino UNO | HC05 Bluetooth | UART Communication | Mobile App
This project shows how wireless control + embedded systems can make even small tasks smarter. Perfect stepping stone for IoT-based home automation!