Catalog > Internet of Things (IOT) Related Products > More Platforms BC04-B Master Slave Selectable Bluetooth Module Shield BC04-B Master Slave Selectable Bluetooth 5V/3.3V Shield ACM BLUETOOTH STACKABLE SHIELD BC04-B MASTER SLAVE SELECTABLE BLUETOOTH MODULE SHIELD. 5V/3.3V SWITCH 268.99 ZAR inc for 1 Each 1 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview This is redesigned arduino bluetooth shield based on our BC04-A module, arduino stackable, and use use arduino pin 3 and 4 as software serial port for communication. Features Master/Slave selectable, based on BC04-B moduleLED indicator the bluetooth status, fast flashing means not paired yet, constant high status is paired. This is also connect to the arduino digital pin2Reset Button can clear the pairing status.A lot of standard 2.54 pins available for use. Specifications Settings :UART D0/D1 or D3/D4: Use either software serial port of arduino digital pin 3 (RX) and 4 (TX), or original UART port of digital pin 1(TX) and 0 (RX)Output/Arduino: Connect the uart of the bluetooth module to either external serial pins or to the arduino board.5V/3V3 Switch: Set the UART logic power level, either 5V or 3V3, keep it at 5V to give the UART pins better power level protection. Downloads Datasheet - EDBT Stackable Bluetooth BT Arduino Shield PDF File 43.63 KB