Bluetooth HC-09 / wireless transceiver module (h.204)

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Specificații în limba engleză:

1. serial module operating voltage 3.3V.

2. the baud rate can be set

2400,4800,9600,19200,38400,57600,115200,230400 user

3. core module size: 28mm x 15 mm x 2.35mm.

4. Operating Current: power input is terminated with a resistance of 5 ohms, use a multimeter to test a variety of state power of the line

Module is paired with the adapter test current is 25MA

Module is paired with the adapter connection and sends data test current is 27MA

Adapter module does not connect to a paired test current is 15MA

5 Sleep current:non Sleep

6. for the GPS navigation system, utility meter reading system, the industrial field, collecting and controlling system.

7. with a Bluetooth laptop computer to the Bluetooth adapter, PDA and other devices to seamlessly connect
Paired only as a fixed baud rate of the serial port can be used as long as it is "fixed baud, 8 data bits, no
Parity "communication format serial device can directly replace the original wired serial without the need to modify the program such as data sets,
Smart car, serial printer, outdoor the lattice strip screen control.
Paired with your computer: suitable for a computer with the device through Bluetooth serial communication, use serial
Paired with the phone: For the phone with devices via Bluetooth serial communication using serial
Paired with a Bluetooth host: suitable for two devices directly through the Bluetooth serial communication, such as single-chip microcontroller, wired serial
With SCM room, use serial

1. led pin indicates Bluetooth connection status, the output pulse Bluetooth connectivity, high output indicates that Bluetooth is connected and turned on the port

2. the power supply voltage of 3.3V, the absolute prohibition of reversed power! Absolute prohibition of more than 3.6V power!

3. the interface level 3.3V, can be connected to various microcontroller (51, AVR, PIC, ARM, MSP430) the 5V MCU best a 1K resistor in series with the module directly connected, the conversion of the published specifications schematic bottom, without MAX232 MAX232!

4. open to effective distance of 3 meters, more than 3 m are possible, but do not do this from the connection quality assurance
After pairing, when the serial line used to support the eight-digit, 1 stop bit, parity or no parity

Support Bluetooth connection is not established by the AT command set the baud rate, name, pairing password, power-down save parameters set. Bluetooth connection automatically switch to transparent mode

7, small size (2.7cm * 1.3cm) the factory chip production to ensure the quality of the patch.

Work:
Baud rate conversion, because the receiver and the sender can choose their own baud rate, when a small amount of data can be used as a baud rate conversion equipment.

The factory default parameters:

Slave, baud rate: 9600, n, 8,1. Passkey: 1234.

Second, AT command set as follows:

Note: HC-09 on power-up test, the module requires 7S time to complete the initialization, after the completion of the initialization module indicator will blink.

1, test communications
Send: AT (return OK, one second left and right)
Back: OK

2, change the Bluetooth serial communication baud rate
Send: AT + BAUD2
Back to: OK2400

2 - 2400
3 - 4800
4 - 9600
5 - 19200
6 - 38400
7 - 57600
8 - 115200
9 - 230400

Note: HC-09 on the baud rate is different from the HC-06, HC-09 baud rate of a minimum of 2400, up to 230,400,
AT command set baud rate, the next power do not need to set up and can be powered down to save the baud rate.

Pachetul conține:
• 1 bucată x bluetooth HC-09 (cod produs: h.204)

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