Bluetooth Low Energy Module HM11 CC2541

The BLE 4.0 (Bluetooth Low Energy) HM-11 Module is based on the Texas Instrument's CC2541 microprocessor but the board itself is manufactured by Elecrow. It can communicate with computers, smartphones, tablets, and other embedded systems via serial communication. BLE technology also lets the device operate in ultra-low power, making it suitable for projects that require battery longevity. Moreover, the BLE 3.0 HM11 module works with AT commands. It can also be modified to assume a slave or master role, a custom serial baud rate, and even the transmission power between - DBM, 23-6 DBM, 0DBM, 6DBM.

Features:

• Compatible XBee form factor
  
• Bluetooth Specification V4.0 aka BLE
  
• Serial port interface
  
• Open environment within 30 meters can realize communication between modules
  
• AT command supported as description
  

Specifications:

• Working frequency: 2.4 GHz ISM band
  
• Microprocessor: CC2540
  
• Modulation method: GFSK (Gaussian Frequency Shift Keying)
  
• PCB size: 24.5mmx30.5mmx0.8mm
  
• Power supply: 3.3V
  
• Communication Protocol: Uart(TTL)
  
• Power supply: + 3.3 VDC 50 mA
  
• Working temperature: - 5 ~ + 65 Centigrade

Inclusions: 1 x Bluetooth Low Energy Module HM11 CC2541

Documents:

• Basic Usage with Arduino
  
• HM-11 Basic AT Commands
  
• HM-11 Datasheet
  
• CC2540 Datasheet
  
• RoHS Certificate
  
• CE Certificate
  
• FCC Certificate