Arduino Android iOS HM-10 BLE Bluetooth 4.0 CC2540 CC2541 Serial Wireless Module

Wiring Connections

• VCC: Connect to 3.3V power supply.
• GND: Connect to the ground (GND) of the system.
• TXD (Transmit Data): Connect to the RX (receive) pin of your microcontroller (e.g., Arduino).
• RXD (Receive Data): Connect to the TX (transmit) pin of your microcontroller (e.g., Arduino).
• State: This pin outputs a signal indicating the connection status (optional).

Power

• Voltage Input: 3.3V (can be connected directly to a 3.3V regulator or through a level shifter from 5V systems)
• Current Consumption:
  • Idle State: Approximately 50µA (ultra-low power mode)
  • Active Transmission: Approximately 8mA

Input and Output

• Input:

• • UART Commands: Configurable via AT commands to set baud rate, device name, and other parameters.
  • Bluetooth Data: Receives data from paired Bluetooth devices.

• Output:

• • UART Data: Transmits data received from Bluetooth devices to the connected microcontroller.
  • Status Signal: Outputs the connection status via the “State” pin.

Physical Characteristics

• Dimensions: 27mm (L) x 13mm (W) x 2.2mm (H)
• Weight: Approximately 2 grams
• Form Factor: Compact, small enough to fit in most enclosures and project designs
• Connector Type: 6-pin header for easy breadboard or PCB integration

Technical Specifications

• Chipset: CC2540 or CC2541 (depends on the module version)
• Frequency: 2.4 GHz ISM band
• Modulation: GFSK (Gaussian Frequency Shift Keying)
• Transmission Range: Up to 100 meters (in open space, without obstructions)
• Data Rate: 1 Mbps (max)
• Antenna: Integrated PCB antenna for wireless communication
• Operating Temperature: -20°C to +85°C

Additional Features

• AT Commands: The module can be configured using AT commands, allowing the user to set parameters such as device name, baud rate, and power mode.
• Master/Slave Role Switching: The module can be switched between master and slave modes using AT commands, providing flexibility in wireless communication setups.
• iBeacon Support: Compatible with iBeacon technology for proximity-based applications.
• Low Power Consumption: Ideal for battery-operated devices due to its low power requirements.
• Firmware Upgradable: Can be updated to the latest firmware to take advantage of new features and improvements.

How to Use

• Power the Module:
  • Connect VCC to a 3.3V power source.
  • Connect GND to the system ground.
• Connect to Microcontroller:
  • Connect the TXD pin of the HM-10 module to the RX pin of the microcontroller.
  • Connect the RXD pin of the HM-10 module to the TX pin of the microcontroller.
• Configure Using AT Commands:
  • Open a serial monitor or terminal with the appropriate baud rate (default 9600 bps).
  • Send AT commands to configure the module, such as changing the device name (AT+NAME), setting the baud rate (AT+BAUD), or switching roles (AT+ROLE).
• Pair with Bluetooth Device:
  • On your Android or iOS device, scan for Bluetooth devices and pair with the HM-10 module.
  • Use a Bluetooth terminal app or custom application to send and receive data wirelessly.
• Use in Projects:
  • Integrate the HM-10 module into projects that require wireless communication, such as remote controls, data logging systems, or IoT devices.

The HM-10 BLE module is a versatile and easy-to-use solution for adding Bluetooth connectivity to your Arduino and other microcontroller projects. Whether you are developing a simple remote control or an advanced IoT application, this module provides reliable and energy-efficient communication.