User's Manual

the rules that apply to the product into which this certified RF module is integrated. Additional testing

and certification may be necessary when multiple modules are used.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses and can

radiate radio frequency energy and, if not installed and used in accordance with the instructions, may

cause harmful interference to radio communications. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off and on, the user is

encouraged to try to correct the interference by one or more of the following measures:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.

—Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

—Consult the dealer or an experienced radio/TV technician for help.

1.2 Feature

 BLE 5.0 protocol；

 Adjustable Bluetooth package length;

 Two working modes: configuration and transparent transmission;

 Automatic advertising and automatic connection after startup;

 IBeacon and ordinary advertising switching;

 Supports serial port wake-up;

 Good for MAC binding connection, the maximum binding number is 3 devices;

 Serial port transparent and format transmission;

 Multiple serial port modes and baud rates;

 Custom 16-bit UUID and 128-bit UUID available;

 Comes with PCB onboard antenna, no external antenna is required;

 Supports Bluetooth parameter air configuration;

 The maximum communication distance is 90m (@2.5dBm, 1Mbps);

 Ultra-low power sleep, simultaneous advertising;

 Multiple masters and multiple slaves, and the maximum connection data is 2 slaves;

 With sniffing function;

 The maximum MTU is 247bytes;

1.3 Applications

 Wireless meter reading and wireless sensing;

 Smart home;

 Industrial remote control and telemetry;