Manufacturer Part Number: at-09
- AT+ command set on board
- Customizable baud rate, device name, and pairing PIN
- Automatically enters transparent serial mode after device is paired and connected
- Returns to AT command mode when disconnected
- Bluetooth version: V4.0
- Default baud rate: 9600
- Default serial port setting: 9600, N, 8, 1
- Voltage: 3.3V
- VCC: input power supply 3.3~6V, Prohibit more than 7V
- GND: Ground
- TX: transport
- RX: receive
- State: when bluetooth is connected , output "High level", "no conntected" output "low level"
- en:when module is connected, give a high level to "EN",the module will disconnected.