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BMD-380 (open CPU)

Stand-alone Bluetooth 5 low energy modules

Ultra-compact full Bluetooth 5, Thread, and Zigbee (IEEE 802.15.4) solution

  • Powerful, ultra‑efficient 64 MHz 32‑bit Arm® Cortex®-M4 with FPU, 1 MB Flash, and 256 kB RAM
  • Miniature footprint of 7.5 x 9.5 mm to fit the most compact designs
  • Bluetooth 5 long range support (Coded PHY)
  • USB 2.0 and built‑in DC‑DC converter for direct USB / Li‑Ion power
  • Hardware cryptographic unit for secure boot and over‑the‑air updates
  • Integrated chip antenna
BMD-380
7.5 x 9.5 x 1.5 mm

Product variants

BMD-380

with internal chip antenna, open CPU

Product variantsBMD-380
Antenna 
Internal antenna
Short range features 
Chip insidenRF52840
Bluetooth qualificationv5.0 (Bluetooth low energy)
Bluetooth low energy output power EIRP [dBm]7
Maximum range [m]500
Maximum number of connections20
Additional standardThread / Zigbee, NFC
Microprocessor on board  
Standalone module
Programmable module
Interfaces 
UART2
USB1
SPI4
TWI (I2C compatible)2
I2S1
GPIO44
ADC8
PWM16
PDM1
Electrical data 
Minimum supply [V]1.70
Maximum supply [V]5.5
Environmental data, quality & reliability 
Maximum temperature [°C]85
Minimum temperature [°C]-40
Size [mm]7.5 x 9.5 x 1.5
Features 
Bluetooth mesh
FOTA
Secure boot
Simultaneous GATT server and client
Other 
MarketsWearables, Healthcare, Smart Home & Buildings