Feature and application:

Feature:

• The module is a master-slave integration, which can realize the connection point-to-point and transparent transmission between modules.

• The slave supports normal broadcast and iBeacon broadcast, and the broadcast content can be dynamically configured to realize personalized broadcast requirements of users.

• Supports broadcast sniffing mode, broadcast information synchronous printing to achieve "broadcast capture" function.

•  Supports data indication function for fast wake-up of low-power application MCU;

•  Supports MAC address binding between modules to achieve directional connection in multiple slaves environments.

•  Supports AT command to facilitate MCU user to configure parameters.

•  Supports parameters air configuration to realize remote parameters update for APP user.

•  Supports low power mode for a battery power supply.

•  Supports GPIO input and output function to realize APP wireless switch control.

•  Support status printing, real-time feedback running status by serial port, easy for MCU application design.

•  Simplify pins connection, all operations can be completed with a serial port, supports secondary development.

Application:

•  Wireless meter reading, wireless sensing.

•  Smart home.

•  Industrial remote control, telemetry.

• Smart buildings.

•  Automatic data collection.

•  Health sensor.

•  Electronic tags.

•  Smart wearable device.

•  Smart robot.

Specification:

Pin definition:

FAQ:

Communication range is too short

• The communication distance will be affected when an obstacle exists;

• Data lose rate will be affected by temperature, humidity, and co-channel interference;

• The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near the ground;

• Seawater has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea;

• The signal will be affected when the antenna is near the metal object or put in a metal case;

• Power register was set incorrectly, the air data rate is set as too high (the higher the air data rate, the shorter the distance);

• The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the transmitting power;

• Due to antenna quality or poor matching between antenna and module.

The module is easy to damage

•  Please check the power supply source, ensure it is 2.0V~3.6V, a voltage higher than 3.6V will damage the module;

• Please check the stability of power source, the voltage cannot fluctuate too much;

• Please make sure antistatic measure is taken when installing and using, high-frequency devices have electrostatic susceptibility;

• Please ensure the humidity is within a limited range, some parts are sensitive to humidity;

• Please avoid using modules under too high or too low temperature.

BER(Bit Error Rate) is high

• There are co-channel signal interference nearby, please be away from interference sources or modify frequency and channel to avoid interference;

• Poor power supply may cause messy code. Make sure that the power supply is reliable;

•  The extension line and feeder quality are poor or too long, so the bit error rate is high.