Bluno - An Arduino UNO Compatible Bluetooth 4.0 (BLE) Controller

The Bluno is an Arduino Uno-compatible development board featuring an integrated Bluetooth 4.0 (BLE) module for low-energy wireless communication. Designed for makers, students, and IoT developers, it allows seamless wireless data exchange and sketch uploading. It provides a familiar prototyping environment for automation, robotics, and connected sensor projects.

Integrated microcontroller and BLE chip

The Bluno integrates an ATmega328 microcontroller with an on-board TI CC2540 Bluetooth 4.0 chip, delivering low-energy wireless communication without requiring complex networking setups. It runs the Arduino Uno bootloader and is fully compatible with the standard Arduino IDE.

Standard Arduino Uno pin layout

Featuring standard digital I/O, analogue inputs, PWM, I2C, SPI, and UART interfaces, the board connects directly to existing Arduino shields and sensors. This allows developers and students to expand projects without requiring specialized adapter hardware.

Transparent serial and wireless programming

Data transfers over Bluetooth using familiar Serial.read and Serial.write commands between the Bluno and smartphones or other Bluno boards. It also supports over-the-air wireless programming, enabling code uploads across connected BLE devices.

Customisable BLE settings and HID support

The integrated BLE system supports Bluetooth HID emulation and can be configured using standard AT commands. BLE firmware can also be upgraded directly to accommodate project requirements.

Power options and compact dimensions

The board operates from a standard 5V USB connection or an external 7V to 12V DC power supply. Measuring 60 mm by 53 mm and weighing just 30 g, it provides a lightweight footprint for portable IoT builds.

Downloads & documentation

• Product wiki (DFRobot)