Hardware Transmission module series of Bluetooth module wireless upload (a)

Bluetooth module HC-06

Knowledge Point one: Bluetooth status

LED indicates Bluetooth connection status, flashing indicates no bluetooth connection, normally lit table Bluetooth is connected and open serial port (ports)

Knowledge Point two: Related parameters

Input voltage 3.6v-6v, current 30mA when not paired, 10mA after successful pairing.

When the Bluetooth connection is not established, it is supported by setting the AT command (baud rate) to modify the baud rate name and the pairing password, the power-off protection, and the Bluetooth connection is automatically transmitted through the mode.

Master-Slave Mode:

Host: Used to search from devices, not to be searched by other devices.

Slave: Used to search the equipment, do not actively search other equipment.

HC-06 Bluetooth module set at command

HC-06 Usb-ttl

VCC VCC

GND GND

TXD RXD

RXD TXD

1> Viewing port numbers

At OK

At+version getting the AT command version

At+namexxx Setting the Bluetooth name

At+pinxxx setting the Bluetooth pairing password (4-bit)

AT+BAUD1 OK 1200

AT+BAUD2 OK 2400

AT+BAUD3 OK 4800

AT+BAUD4 OK 9600

AT+BAUD5 OK 19200

At+baud6 OK 38400

At+baud7 OK 57600

At+baud8 OK 115200

At+baud9 OK 230400

At+bauda OK 460800

At+baudb OK 921600

AT+BAUDC OK 1382400

At+role=s set module to slave mode

At+role=m setting the module as the main mode

At+led1 turn on the LED

At+led0 Turn off LED

AT+PN No Calibration

At+pe parity Check

At+p0 parity Check

Hardware Transmission module series of Bluetooth module wireless upload (a)