Bluno Nano - Arduino Nano Compatible - Bluetooth 4.0

Bluno Nano is a compact Bluetooth Low Energy development board designed for space‑constrained connected hardware projects. As a miniature member of the DFRobot Bluno family, this wireless microcontroller integrates a TI CC2540 BLE chip with an Arduino-compatible ATmega328 platform inside a Nano‑sized footprint. The tiny Bluetooth microcontroller board enables rapid creation of smart wearables, wireless sensors, and mobile‑controlled devices while maintaining full compatibility with Arduino Uno pin mapping. Compact dimensions and integrated BLE connectivity make this wireless prototyping platform ideal for portable electronics, embedded IoT concepts, and compact robotics where size and weight matter.

Note: For expanding I/O ports, the Bluno Nano is compatible with all Arduino‑Nano‑compatible expansion shields. When using other expansion shields, additional wiring may be required.

Integrated Bluetooth 4.0 (BLE) Connectivity

This wireless microcontroller board integrates a TI CC2540 Bluetooth 4.0 chip directly on the Nano‑sized controller, enabling low‑power BLE communication without requiring an external module. The embedded Bluetooth controller supports transparent serial communication, Bluetooth HID functionality, and AT command configuration for flexible wireless behavior. Built‑in BLE capability enables smart gadget development such as wearable trackers, mobile‑controlled lighting, and wireless sensor nodes. Improved antenna design in later versions supports communication distances up to 50 meters between two Bluno Nano boards under suitable conditions.

Wireless Programming and Easy BLE Configuration

This BLE-enabled Arduino‑compatible board supports wireless firmware uploading through Bluetooth Low Energy, enabling code updates without physical USB connection. AT command support allows convenient configuration of wireless parameters, while firmware upgrade capability simplifies future BLE feature updates. Transparent serial communication ensures straightforward integration with mobile apps, gateways, or wireless control systems. Such flexibility makes the compact controller suitable for rapid prototyping of connected devices and mobile‑interactive electronics.

Full Arduino Uno Pin Compatibility

The compact development board maintains compatibility with Arduino Uno pin mapping while using a Nano‑sized layout. Projects originally developed for Arduino Uno platforms can transition into wireless prototypes without major hardware redesign. The ATmega328 microcontroller combined with standard Arduino bootloader support ensures compatibility with existing Arduino development tools, libraries, and ecosystems. Such compatibility significantly simplifies wireless upgrades for robotics platforms, sensor systems, and portable embedded devices.

Figure: Neopixel LED Ring & Strip Arduino controlled by Bluetooth from Android or iPhone

This miniature BLE development board supports a wide range of connected electronics including wearable devices, smartphone‑controlled lighting systems, wireless robotics controllers, portable sensors, and educational IoT experiments. Compact size and built‑in Bluetooth communication allow engineers and makers to rapidly build smart gadgets such as pedometers, smart bracelets, and mobile‑interactive electronics while maintaining compatibility with common Arduino hardware ecosystems.