DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module User Manual

1. Úvod

This manual provides comprehensive instructions for the DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board. This module is designed to add Bluetooth capabilities to your projects, supporting devices like iPhone 4s or later. It is compatible with Arduino UNO R3, Mega 2560, and Nano boards. Please read this manual thoroughly before use to ensure proper setup and operation.

Figure 1: DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module.

2. Vlastnosti produktu

• Nízká spotřeba energie: HM-10 Bluetooth 4.0 module enables Bluetooth features for your project, supporting iPhone 4s or later.
• DSD TECH Brand 4pin Base Board: Provides convenient connections to VCC, GND, TX, and RX pins, simplifying integration with your Arduino project.
• Indikace stavu LED: The onboard LED lights solid when a connection is established and flashes when disconnected.
• iBeacon Support: The module can be configured into iBeacon mode, allowing you to create your own iBeacon. It also supports Apple Notification Center Service (ANCS).
• Provozní svtage: Operates within a voltagRozsah 3.6V až 6V.
• Výchozí přenosová rychlost: Default communication rate is 9600.

Figure 2: HM-10 module with its protective clear case removed, showing the internal components and pins.

3. Nastavení a instalace

3.1 Pinout and Basic Wiring

The HM-10 module features a 4-pin interface for easy integration. These pins are VCC (power), GND (ground), TX (transmit), and RX (receive). When connecting to an Arduino or similar microcontroller, ensure that the TX pin of the HM-10 connects to the RX pin of the microcontroller, and the RX pin of the HM-10 connects to the TX pin of the microcontroller. The module operates between 3.6V and 6V.

Figure 3: Pinout diagram for the DSD TECH HM-10 module, indicating RXD, TXD, GND, and VCC (3.6V-6V).

Obrázek 4: Přample wiring diagram showing the HM-10 module connected to an Arduino/MCU, including 1K and 2K ohm resistors for voltage division on the RX line if the Arduino operates at 5V.

3.2 Arduino Code Overview

To communicate with the HM-10 module from your Arduino, you will typically use the SoftwareSerial library. This allows you to use any digital pins on your Arduino as serial communication pins, which is useful if the hardware serial pins (0 and 1) are already in use or needed for other purposes (like USB communication). The code will involve:

• Including the SoftwareSerial.h knihovna.
• Defining a SoftwareSerial object, specifying the TX and RX pins (e.g., SoftwareSerial BT(3, 4); where 3 is RX and 4 is TX for the Arduino, connecting to HM-10's TX and RX respectively).
• Setting the baud rate for the Bluetooth module (default is 9600) using BT.begin(9600); v nastavení() funkce.
• V smyčka() function, checking for available data from the Bluetooth module (if (BT.available())) and reading it (BT.read()).
• Sending data to the Bluetooth module using BT.print() or BT.println().

Napřample, you can program your Arduino to turn on an LED when it receives a specific character (e.g., '1') from the Bluetooth module and turn it off for any other character. This demonstrates basic two-way communication.

3.3 Connecting to a PC (Windows)

To connect your HM-10 module to a Windows PC, ensure your Bluetooth module is powered up and its LED is blinking (indicating it's not yet connected). You may need to adjust your Bluetooth device discovery settings to "Advanced" instead of "Default" for the module to appear. Then, follow these steps:

1. Přejděte do Nastavení systému Windows > Bluetooth a zařízení.
2. Klikněte na „Přidat zařízení“ a vyberte „Bluetooth“.
3. Your HM-10 module (often appearing as "HC-06" or "HM-10") should appear in the list. Select it.
4. If prompted for a PIN, the default PIN for HC-06 is typically "1234". For HM-10, it might be "000000" or "123456".
5. Once connected, the LED on your HM-10 module should turn solid red.
6. To verify the connection and identify the COM port, open Device Manager (search for it in Windows). Under "Ports (COM & LPT)", you should see "Standard Serial over Bluetooth link (COMx)" where 'x' is your assigned COM port number.
7. In the Arduino IDE, go to Tools > Port and select the COM port identified in Device Manager. Then open the Serial Monitor. It should connect and be ready to receive commands.

3.4 Connecting to Mobile Devices (iOS & Android)

DSD TECH provides a dedicated application for testing and using the module with mobile devices. Hledat "DSD TECH Bluetooth" in your device's app store.

• Pro zařízení se systémem iOS: Download the "DSD TECH Bluetooth" app from the Apple App Store.Download DSD TECH Bluetooth for iOS
• Pro zařízení Android: Download the "DSD TECH Bluetooth" app from the Google Play Store.Search DSD TECH Bluetooth on Google Play

Once the app is installed and your HM-10 module is powered on (LED blinking), open the DSD TECH Bluetooth app. The app should automatically scan and display available DSD TECH devices. Select your module to connect. Upon successful connection, the module's LED will turn solid, and you can begin sending and receiving data through the app's interface.

Figure 5: Screenshots of the DSD TECH Bluetooth application interface for Android (left) and iOS (right).

4. Provoz

The DSD TECH HM-10 module operates as a UART (Universal Asynchronous Receiver-Transmitter) serial port. This means it can send and receive data serially, similar to how your Arduino communicates with a computer via USB. Once connected via PC serial monitor or the mobile app, you can send AT commands to configure the module or send custom data for your project's needs.

4.1 Příkazy AT

The HM-10 module supports a set of AT commands for configuration. These commands allow you to change parameters such as the module's name, baud rate, role (master/slave), and enable features like iBeacon or ANCS. Commands are typically sent in uppercase, followed by a carriage return and newline. Some common AT commands include:

• NA: Tests the connection. Should return "OK".
• AT+NAME[name]: Sets the module's name. E.g., AT+NAMEArduinoBLE.
• AT+BAUD[value]: Sets the baud rate. E.g., AT + BAUD4 za 9600.
• AT+ROLE[value]: Sets the module's role (0 for slave, 1 for master).
• AT+ANCS1: Enables Apple Notification Center Service.
• AT+RESET: Resets the module.

Refer to the official HM-10 datasheet for a complete list of AT commands and their parameters.

5. Údržba

The DSD TECH HM-10 module is a low-maintenance electronic component. To ensure its longevity and optimal performance:

• Udržujte v suchu: Avoid exposure to moisture or liquids, which can damage the electronic components.
• Jemně čistěte: If cleaning is necessary, use a dry, soft cloth. Do not use harsh chemicals or abrasive materials.
• Zacházejte opatrně: Zabraňte pádu modulu nebo jeho vystavení silným nárazům.
• Správné skladování: Store the module in a cool, dry environment when not in use, preferably in its original packaging or an anti-static bag.
• svtage Soulad: Always ensure the operating voltage is within the specified 3.3V to 6V range to prevent damage.

6. Řešení problémů

If you encounter issues with your DSD TECH HM-10 module, consider the following troubleshooting steps:

• Module LED Not Blinking:
  • Ensure proper power supply (3.3V to 6V) to the VCC and GND pins.
  • Check for correct wiring and secure connections.
• Nelze se připojit/spárovat:
  • Verify the module is powered on and its LED is blinking (indicating discoverable mode).
  • For PC connections, ensure Bluetooth discovery settings are set to "Advanced" or "Show all devices".
  • Check the default PIN (e.g., "1234" or "000000") if prompted.
  • Ensure no other device is currently connected to the HM-10 module.
  • Try resetting the module by power cycling it or sending the AT+RESET příkaz.
• AT příkazy nereagují:
  • Confirm the correct TX/RX wiring (TX of HM-10 to RX of Arduino/USB-TTL, RX of HM-10 to TX of Arduino/USB-TTL).
  • Ensure the baud rate in your serial monitor/code matches the module's baud rate (default 9600).
  • In Arduino Serial Monitor, ensure "No line ending" is selected for AT commands.
  • Commands must be in uppercase (e.g., AT, ne at).
• Problémy s přenosem dat:
  • Double-check the baud rate settings on both the module and the communicating device.
  • Verify the logic levels. If your Arduino is 5V, you might need a voltage divider on the HM-10's RX pin (from Arduino's TX) as the HM-10 typically operates at 3.3V logic.
  • Ensure the module is within range of the connected device.

7. Specifikace

8. Záruka a podpora

DSD TECH provides a JEDEN ROK ZÁRUKA for this HM-10 Bluetooth 4.0 BLE module. If you encounter any questions or issues during setup, operation, or troubleshooting, please do not hesitate to contact DSD TECH customer support. They are committed to resolving your issues within 24 hours.

DSD TECH is a trusted provider of industrial-grade USB/Serial/Wireless solutions, with over 100,000 global installations and support from major companies. Every device comes with lifetime support and a 1-year product replacement service.