{"title":"Romeo BLE - Arduino Robot Control Board with Bluetooth 4.0","handle":"romeo-ble-arduino-robot-control-board-with-bluetooth-4-0","url":"/products/romeo-ble-arduino-robot-control-board-with-bluetooth-4-0","description":"The Romeo BLE is an all-in-one Arduino-compatible robot control board from DFRobot with integrated Bluetooth 4.0. It combines an ATmega328P microcontroller, a dual-channel DC motor driver (2 A max), and a TI CC2540 BLE chip in a single board — letting you build and wirelessly control robots without additional motor driver shields.\n\nThanks to Bluetooth 4.0, the Romeo BLE supports wireless sketch uploading (via a Bluno Link adapter), smartphone control, Bluetooth HID, iBeacons, and AT command configuration. It's compatible with the DFRobot Gravity sensor ecosystem and standard Arduino shields.\n\nKey Features\n\n\nIntegrated Motor Driver – Dual H-bridge, 2 A max current\n\nBluetooth 4.0 (BLE) – TI CC2540, 70 m range in free space\n\nWireless Sketch Upload – Update code over Bluetooth (requires Bluno Link adapter)\n\nGravity Compatible – Standard 3-pin interface for plug-and-play sensors\n\nArduino Shield Compatible – Standard Arduino UNO form factor headers\n\n5 Programmable Buttons – Built-in for user input\n\nAPC220 Socket – Integrated socket for RF module\n\n\nSpecifications\n\n\nMicrocontroller – ATmega328P (Arduino UNO bootloader)\n\nBLE Chip – TI CC2540\n\nDigital I/O – 14 pins (6 PWM: pins 3, 5, 6, 9, 10, 11)\n\nAnalogue Inputs – 8 × 10-bit ADC\n\nI2C – 3 ports\n\nMotor Driver – Dual H-bridge, 2 A max\n\nPower Input – USB or DC 2.1 mm barrel jack, 5–23 V (auto-sensing)\n\nDC Output – 5 V / 3.3 V\n\nDimensions – 94 × 80 mm (3.70 × 3.15″)\n\n\nBLE Features\n\nBluetooth HID support\niBeacon support\nAT command configuration\nTransparent serial communication\nMaster/slave mode switching\nUSB firmware update for BLE chip\n\n\nIdeal For\n\nMobile robot platforms\nBluetooth-controlled robotics projects\nArduino-based robot builds requiring integrated motor control\nSTEM education and classroom robotics\n\n\nPackage Contents\n\n1× Romeo BLE (Arduino-compatible ATmega328P)\n\n\nResources\n\nProduct Wiki\nSchematic (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11883,"title":"Default Title","sku":"DF-DFR0305","price":66.88,"on_sale":false,"in_stock":true,"available_quantity":659,"option1":"Default Title"}]}