AT-09 Bluetooth 4.0 BLE Module (HM-10 Compatible) — CC2540/CC2541 Serial Wireless for Arduino & IoT

Add Wireless Communication to Any Project — Fast and Easy.
The AT-09 Bluetooth 4.0 BLE Module is a compact, energy-efficient, and reliable wireless module based on the CC2540/CC2541 chipset. Fully compatible with the popular HM-10, this module brings Bluetooth Low Energy (BLE) functionality to your Arduino, ESP32, Raspberry Pi, or IoT projects, allowing seamless data transmission between devices and smartphones (Android & iOS).

Perfect for smart gadgets, sensors, and wireless control systems — no complicated setup required, just pair and connect.

⚙️ Key Features

• Bluetooth 4.0 BLE (Low Energy): Efficient, stable, and low power

• HM-10 Compatible Firmware: Works seamlessly with most Arduino BLE libraries

• Wide Compatibility: Connects with both Android and iOS devices

• UART/TTL Interface: Easy integration with Arduino and microcontrollers

• CC2540/CC2541 Chipset: Proven performance for IoT and embedded systems

• Configurable via AT Commands: Customize name, baud rate, and connection mode

💡 Perfect For

• Wireless control of robots and smart devices 🤖

• Bluetooth data logging and monitoring 📲

• IoT sensor communication and BLE beacons 🌐

• DIY smart home and automation projects 🏠

🛒 Why Makers Love the AT-09

✅ Compatible with Android & iOS
✅ Compact and energy-efficient
✅ Simple serial connection, no special drivers
✅ Widely supported in the Arduino community

Bring your projects to life with wireless Bluetooth control — get your AT-09 BLE Module today!