Item Name 	Bluetooth UART RS232 serial converter ModuleOperating Frequency Band 	2.4GHz unlicensed ISM bandBluetooth Specification 	V2.0+EDROutput Power Class 	Class 2Operating Voltage 	3.3VHost Interface 	USB/UARTAudio Interface 	NoneFlash Memory Size 	8MbitDimensions 	Dimensions: 28mm(L) x 15 mm(W) x 2.35mm(H)Net Weight 	9.6 g / 0.3 oz  Key Features*support Master and Slave mode, modify by AT commander1. CSR Bluetooth Chip Solution2. Bluetooth Spec v2.0+EDR Compliant3. Enhanced Data Rate (EDR) compliant with V2.0.E.2 of specification for both 2Mbps and 3Mbps modulation modes4. Full Speed Bluetooth Operation with Full Piconet Support and Scatternet Support5. Increadible samll size with 3.3V input, and RoHS Compliant6. UART interface and with baudrate setup function7. Support for 8Mbit External Flash Onboard8. Support for 802.11Co-ExistenceProduct DescriptionThe Bluetooth UART RS232 serial Converter Module can easily transfer the UART data through the wireless Bluetooth, without complex PCB layout or deep knowledge in the Bluetooth software stack, you can combine this bluetooth module with your system: * MCU, ARM or DSP systems.* SOC systems.* Personal Digital Assistants (PDAs)* Computer Accessories* Other systems your want to use under bluetooth functions. [Hardware]CSR solution, Bluetooth V2.0 protocolsupport AT commandersupport Master and Slave mode, modify by AT commandersupport 1200-115200 baudrate3.3V single supplySize: core module: 28mm*15mm*2.35mm, whole module:35.33mm*19.6mm*3.7mmcurrent: 30mA MAXcan be used with all MCU by UART port2 indicator lights [Software]user manualAT commander manual[External Board for RS232 interface]We also provide an external board for the bluetooth to UART module for purchase.