BLE Nano V3.0 Development Board with CC2540 BLE Module

Adding Bluetooth to a typical Arduino project normally means wiring in a separate BLE module and dedicating pins and a serial connection to it - this board instead integrates the TI CC2540 BLE chip directly alongside an ATmega328P microcontroller (the same chip at the heart of an Arduino Uno) on one compact board, so wireless connectivity comes built in from the start rather than being bolted on afterward.

Running the Arduino 1.8.8 bootloader means existing Arduino sketches and libraries largely just work, while the CC2540 handles BLE communication over USB virtual serial, hardware serial, or direct wireless transparent transmission modes - genuine flexibility in how a project actually uses the wireless link. A 50-meter open-environment range and up to 1Mbps data rate cover most short-range wireless control and data-transfer needs a hobbyist project would have.

Common uses are Bluetooth-controlled robots and IoT devices wanting Arduino-familiar programming without a separate BLE module, wireless sensor data transmission projects, and any Arduino-compatible build needing wireless connectivity from a single integrated board rather than stacking a shield.