LM781-1

Short Range surface mount Bluetooth Module with on-board chip antenna for 2.2 V to 3.6 V voltage operations.

Bluetooth v2.1 + EDR compliant backward compatible with Bluetooth v2.0/1.2/1.1 specification
Secure Simple Pairing support * Full Bluetooth Data rate upto 3 Mbps
Class 2 Radio with 25 m range in open space

Interoperable with PDAs, Phones, PCs and Laptops
Bluetooth v2.1 + EDR compliant backward compatible with Bluetooth v2.0/1.2/1.1 specification
Secure Simple Pairing support
Full Bluetooth Data rate upto 3 Mbps
Class 2 Radio with 25 m range in open space
Integrated chip antenna
AT Command Set provided for module configuration
802.11 Coexistence
Lead free RoHS compliant
Small Size: 15.20 mm x 26.92 mm x 2.0 mm
Low Power Consumption
SPP firmware provided by default on the module
Supports 7 ACL link and 3 SCO links (HCI mode firmware)
HCI mode, or SPP/HID software stacks

Manufacturer LM Technologies Ltd
Chipset CSR Bluecore 4 (BC04)
Power Classification Class 2
Module Type Surface Mount
Bluetooth Specification Core v2.1 + EDR backward compatible with Bluetooth v2.0/1.2/1.1 specification
Frequency 2402 - 2480 MHz
Temperature Range -10 to +70 C
Data Rate Upto 3 Mbps
Range 25 m in open space
Rx Sensitivity TBC
Antenna On board chip antenna
Voltage operation 2.2 - 3.6 V
Average Current Consumption (Idle Mode) 19 mA
Average Current Consumption (Deep Sleep Mode) 0.9 mA
Power Output +4 dBm
Default Firmware v6.13
Size 15.20 mm x 26.92 mm x 2.0 mm
Bluetooth Profile SPP Profile available by default, HID profile also offered.
Interface UART
Serial Parameters Default 19200, 8 N 1
UART lines TxD, RxD, GND, CTS, RTS
Baud rates 1.2/2.4/4.8/9.6/19.2/38.4/57.6/115.2/230.4/460.8/921.6 kbps
Configuration AT Command Set
Flash Memory 8 MB
RoHS Compliant Yes

	LM781/downloads_at_command_AT_Command_Manualv4.52.pdf
	LM781/downloads_datasheets_LM781_Datasheet.pdf