diymore slope BC-04 Bluetooth Serial Port Module Demo Version Wireless Serial Communication Wireless Serial Port RS232 Data Transmission Module

Specification:

Implementation standard: Bluetooth SIG v2.1+EDR

Bluetooth protocol: Bluetooth serial port profile (SPP)

Interface interface: RS232

Communication rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, 1382400bps

Modulation method: 2.4G ISM direct sequence frequency hopping ((FHSS)

Communication distance: 15 meters in open space, Class 2

Transmit power: 4 dBm

Acceptance Sensitivity: -79dBm

Working voltage: 5V

Working current/sleep current: 40mA/1.6mA (typ.)

Working ambient temperature/storage ambient temperature: -10-50 degrees Celsius/-20-80 degrees Celsius

Frequently Asked Questions and Answers:

Problem A: Send AT, no return OK

1. Check if the serial port is connected

2. Check whether the baud rate of our module is the same as that of the device you are connecting to

3. Whether carriage return and line feed after AT

4. Is the Bluetooth power supply 3.3V?

5. Whether the TTL level is converted to RS232 and connected to the computer serial port

6. Check if the port is selected correctly

Problem B: After the module is powered on, there will be garbled characters

1. Check whether the serial port is reversed or soldered

2. Check whether the baud rate of our module and the device you are connected to is consistent

3. Check if the port is selected correctly

Problem C: The computer bluetooth cannot connect to the bluetooth module

1. Turn off the Bluetooth driver on the computer and restart it

2. Change the adapter

3. Change computer

Problem D: The module cannot be connected to the mobile phone

1. Check if your mobile phone has the mobile phone serial port software installed

2. Whether to use the Bluetooth in the mobile phone serial software to search for pairing

3. Try another phone

Package includes:

Bluetooth serial module X1