RF-Star BLE5.0 Module with 2.4 GHz Wireless Transceiver for HVAC


  • Protocols: Bluetooth 5.1 low-energy
  • Package (mm): 16.6 × 11.2 × 1.7, half-hole, 1.27 pitch, 18-pin
  • Features: LE 1M PHY, LE 2M PHY, LE Coded PHY (long range), Advertising extension
  • GPIO: 10
  • Max. TX Power: +2 dBm

RF-Star CC2640R2F BLE5.0 Module RF-BM-4044B2 2.4 GHz Wireless Transceiver for HVAC

RF-BM-4044B2 and RF-BM-4044B3 modules are designed based on CC2640R2FRSM System-on-Chip, which fully supports the single-mode Bluetooth 5.1 Low Energy operation. The module contains a 32-bit ARM Cortex-M3 processor with a working frequency of 48.0 MHz.

The module has rich peripheral function libraries and a unique ultra-low power sensor controller, which is fit for connecting the external sensors in sleep mode or independently acquiring analog and digital data. RF-BM-4044B2 is pin-compatible with RF-BM-4044B3. 4044B2 is the high-performance onboard PCB antenna, and the 4044B3 is equipped with an IPEX connector for the feasible external antennas.

  • Wireless SoC: 48 MHz ARM® Cortex®-M3 processor
  • TX power: -21.0 dBm ~ +2.0 dBm (typical: 0 dBm)


  • -97 dBm @ 1 Mbps
  • -92 dBm @ 2 Mbps
  • -103 dBm @ 125 kbps (LE Coded)
  • -101 dBm @ 500 kbps (LE Coded)

Current Consumption

  • 2.02 μA in sleep mode
  • 108.76 μA at 200 ms broadcast cycle (disable the internal EN pull-up)
  • 497.41 μA at 30 ms connection cycle (disable the internal EN pull-up)


  • Bluetooth low energy 5.1
  • Bluetooth Long Range
  • Data rate: 1 Mbps, 2 Mbps, 125 kbps, 500 kbps

Operating Range

  • Supply voltage range: 1.8 V ~ 3.8 V
  • Operating Temperature: -40 °C ~ +85 °C

Rich Peripherals

  • 12-bit ADC
  • 10 GPIOs
  • SPI
  • I²C
  • I²S
  • RTC
  • AES-128


  • Smart toys
  • Fitness equipment
  • Environmental sensor nodes
  • Passive key-less entry (PKE)
  • Smart door locks
  • Phone Accessories
  • Health-care equipment
  • Smart lighting
  • Energy harvesting
  • Thermometer
  • Human input devices
  • Sports equipment

Additional information

Weight 1.1 lbs
Dimensions 16.6 × 11.2 × 1.7 in

Product Datasheet and Manual

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RF-star) is a leading global provider of wireless communication modules and solutions, specializing in low-power modules for IoT, industrial, automotive, and consumer applications. With over a decade of engagement in Bluetooth and IoT communication technology and extensive expertise, we are capable of bringing reliable, convenient, secure and intelligent connectivity service to every industry, enriching smart life with a perfect wireless experience.

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Shipping costs

Region / Country State Postcode Cost
Asia Any Any $36.00
Europe Any Any $57.00
North America Any Any $42.00
Australia Any Any $48.00
South America Any Any $57.00