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General| Output Power | 4dBm |
|---|---|
| Modulation Type | GFSK |
| Transmission Distance | 10m |
| Transmit Power | 4 dBm |
| Antenna | PCB Antenna |
| Frequency Range | 2402-2480MHz |
| Supply Voltage | 3.3V |
| Frequency | 2.4GHz |
Detailed pinout and function mapping for the HLK-B40 module, essential for hardware connections and integration.
Explains how data is transmitted transparently between serial port and Bluetooth, simplifying user interaction.
Covers the two primary operating modes: transmission and AT command mode for configuration and control.
Describes the purpose and behavior of each input and output pin on the module, aiding hardware integration.
Details the host/slave roles and how connections are established and managed between devices for communication.
Instructions for using the dedicated test board to quickly verify module functionality and setup procedures.
Step-by-step guide to test serial port to Bluetooth data transmission using the module and a mobile app.
Outlines the syntax and structure for sending AT commands to configure and control the module's parameters.
Comprehensive list of available AT commands, their parameters, and expected responses for module configuration.
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