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HM-BT4501BW

Bluetooth Low Energy (BLE) Pass-through Module

HM-BT4501B.png

1. Product Overview


HM-BT4501B is a wireless data pass-through module based on CMT4501 low-power Bluetooth 4.0 chip. By connecting with MCU, it can quickly realize the connection and data communication between the module and Bluetooth devices such as smart phones and tablets. MCU takes up less resource and development is simple.


2. Module Features 


  • Easy to use without any experience in Bluetooth stack application;

  • User interface uses universal serial port design, full-duplex two-way communication, minimum baud rate support 9600 bps;

  • Default connection interval is 30 millisecond, fast connection;

  • Support 1M symbol transmission;

  • Support 20 bytes packet transmission;

  • Support AT instruction for software reset and get MAC address;

  • Support AT instruction to set Bluetooth connection interval and control different forwarding rates (dynamic power adjustment);

  • Support AT instruction to adjust Tx power, modify advertisement interval, customize advertisement data, customize device identification, set data delay (user MCU serial port reception preparation time), modify serial port baud rate, modify module name. All the above parameters are saved after power-down;


3. Electrical Characteristics 


  • Working voltage: 1.8V-3.6V

  • Working temperature: - 40℃~125℃ (built-in BLE main IC working range)

  • Modulation mode: GFSK (Gaussian Frequency Shift Keying)

  • Modulation frequency: 2402MHz-2480MHz

  • Transient current of receiving data: less than 8mA@3V

  • Transient current of sending data: less than 8mA@3V@0dBm

  • Current in the low power mode: less than 4uA@3V

  • Tx power: - 20dBm ~+8dBmRx sensitivity: -97dBm


Design documents and resources
Certification & Test Reports:
RF Module ROHS2.0-20190419
2019-05-20
RF Module REACH-20190517
2019-05-20
Typical application plan
Smart Wear

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Smart Phone

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Outdoor Sports Product

Outdoor Sports Product

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3D Navigation

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Smart Wear

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Smart Phone

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Outdoor Sports Product

Outdoor Sports Product

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3D Navigation

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