Product characteristics:
1, the core module uses HC-06 slave module, and the interface includes TTL level VCC, GND, TXD, RXD and RS232 level of 1 heads, TTL level priority is higher than RS232 interface.
2, LED indicates a Bluetooth connection state, flashing indicates no Bluetooth connection, often indicates that Bluetooth has been connected and opened.
3, the module must be connected to the power supply to work. The power supply is input from the VCC and GND pins of the module. Floor set LDO, with anti back protection, input voltage 3.6~6V, unpaired current of about 30mA, matching about 10mA, input voltage prohibition more than 7V!
4, TTL interface level 3.3V, can directly connect all kinds of singlechip (51, AVR, PIC, ARM, MSP430, etc.), DB9 interface is standard RS232 level, TXD, RXD, GND signal effective.
5. The effective distance from the open space is 10 meters (the power level is CLASS 2), which does not guarantee the connection quality exceeding this distance.
6, after the pair when full duplex serial port, DB9 port supports 1200BPS ~ 115200bps commonly used baud rate, TTL interface supports 1200 ~ 1382400bps commonly used baud rate, without any knowledge of the Bluetooth protocol, only supports 8 data bits, 1 stop bit (parity check set) communication format, which is the most commonly used communication other format, format is not supported.
7. When the Bluetooth connection is not established (that is, LED flicker), the baud rate, the name, the pairing password are set up through the AT instruction, and the set parameters are saved. Automatic switch to transmission mode after Bluetooth connection
8, small size, does not contain DB9 joint size (3.98cm*1.52cm), factory patch production, to ensure the quality of the patch. And set the transparent heat shrinkable tube, both dustproof and beautiful still can prevent static electricity.
9, the link is from slave, from function to various Bluetooth enabled computers, Bluetooth hosts, most Bluetooth mobile phones, PDA, PSP and other intelligent terminals.