DFRobot
Bluno - An Arduino Bluetooth 4.0 (BLE) Board
The Bluno integrates a TI CC2540 Bluetooth 4.0 (BLE) chip with an Arduino Uno-compatible development board, enabling wireless communication for your Arduino ...
The Bluno integrates a TI CC2540 Bluetooth 4.0 (BLE) chip with an Arduino Uno-compatible development board, enabling wireless communication for your Arduino projects. It supports wireless programming via BLE, Bluetooth HID, AT command configuration, and transparent serial communication.
Fully compatible with all Arduino Uno pins, any existing Uno project can go wireless simply by switching to Bluno. DFRobot provides open-source apps for both Android and iOS to communicate with Bluno devices.
Key Features
- Bluetooth 4.0 (BLE) – On-board TI CC2540 chip for low-energy wireless communication
- Wireless Programming – Upload sketches over BLE without a USB cable
- Bluetooth HID – Connect as a Human Interface Device to PCs and other devices
- AT Command Support – Configure BLE settings via AT commands
- Transparent Serial – Seamless serial communication through Bluetooth
- Arduino Uno Compatible – Drop-in replacement with full Uno pin mapping
- Master/Slave Modes – Flexible Bluetooth role configuration
- Upgradeable Firmware – Easily update the BLE firmware
Specifications
- Microcontroller: ATmega328
- BLE Chip: TI CC2540
- Bootloader: Arduino Uno
- Power: USB or external 7–12V DC
- Dimensions: 60 × 53 mm
- Weight: 30g
Ideal For
- BLE-enabled wearable and smart device prototyping
- Wireless Arduino projects and IoT applications
- Bluetooth HID devices (keyboards, controllers)
- Adding wireless connectivity to existing Arduino Uno projects
Package Contents
- 1× Bluno
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- BLE
- BLE stands for Bluetooth Low Energy, a Bluetooth mode designed for lower power use and modern phone compatibility. It matters because BLE support can make the module easier to use with Apple devices and battery-powered projects, though it may behave differently from classic serial Bluetooth.
- Bootloader
- Small starter software on a microcontroller that lets new code be uploaded before the main program runs. Knowing how to enter bootloader mode matters when you need to program the board or recover it after a faulty sketch.
- HID
- Human Interface Device is a USB device class used for keyboards, mice, gamepads and similar controls. If a board supports HID over USB, it can act like an input device to a computer without needing a custom driver.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- TI CC2540
- A Texas Instruments Bluetooth Low Energy chip used to add wireless communication to embedded projects. In this kit it provides the BLE connection, so it affects how the controller can send readings to a phone or be configured wirelessly.
Find this product in
Connectivity
BLE Link Schematic V1.1
Schematic · 48.6 KB · Click any page to view full size
Supplier page — dfrobot.com
Supplier Description · 744.3 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
