BMD-340: Bluetooth 5 + Thread

Status: Sampling Q1 2018

Rigado's Bluetooth 5 (BLE) and Thread (IEEE 802.15.4) modular solution, the BMD-340 is an advanced, highly flexible, ultra-low power multiprotocol SoM for portable, extremely low power embedded systems. With an ARM® Cortex™-M4F CPU, integrated 2.4GHz transceiver, and an integrated antenna, the BMD-340 provides a complete RF solution allowing faster time to market with reduced development costs.

Providing full use of the Nordic nRF52840’s capabilities and peripherals, the BMD-340 can power the most demanding applications, all while simplifying designs and reducing BOM costs. The BMD-340 is an ideal solution for designs that require the latest Bluetooth 5 features or 802.15.4 based networking for Thread. Increased integration with built-in USB and 5.5V compatible DC/DC supply reduces design complexity and BOM cost while expanding possible applications. BMD-340 designs are footprint compatible with the BMD-300/301, providing low-cost flexibility for tiered product lineups.


Key Features

  • Complete Bluetooth 5.0 and Thread (802.15.4) solution
  • 64MHz 32-bit ARM® Cortex™-M4F CPU with 1MB Flash & 256kB RAM
  • USB 2.0 and built in DC/DC converter for direct USB / Li-Ion power
  • Transmitter certifications: FCC (USA), IC (Canada), MIC (Japan)
  • Transmitter compliance: CE (Europe), RCM (Australia / New Zealand)
  • Bluetooth qualified & Thread-compliant
  • Sub-footprint compatible with BMD-300/301 (Nordic nRF52832)
  • TX Power: 0 dBm @ 5.3mA, +8dBm @ 13.6mA
  • BLE Rx Sensitivity: -96 dBm @ 5.4mA
  • BLE Coded Rx Sensitivity: -103 dBm
  • Pins: 48 GPIO (8 Analog) + USB
  • Dimensions: 10.2 x 15.0 x 1.9mm

Quick Specifications


Operating Temperature -40°C to +85°C
Storage Temperature -40°C to +125°C
Physical Dimensions 10.2 x 15.0 x 1.9mm
Operating Supply 1.7V to 5.5V
Material RoHS compliant
MAC Address Unique MAC address provided (in flash & on label)
Antenna Internal PCB antenna
2.4 GHz Transceiver
Soft Devices BT 5 LE Concurrent Peripheral / Central (S140)
BT 4.2 LE Concurrent Peripheral / Central (S132)
Thread (OpenThread-based)
Frequency 2.360GHz to 2.500GHz
IEEE Standard 802.15.4 Modulation OQPSK @ 250kbps
Bluetooth Low Energy 5 Modulation GFSK @ 2Mbps, 1Mbps + 500kbps/125kbps coded
IEEE Standard 802.15.4 Receiver sensitivity -100 dBm
Bluetooth Low Energy 5 Receiver sensitivity -96 dBm (1Mbps), -103 dBm (125kbps coded)
Transmit power +8dBm to -40 dBm
Receiver sensitivity -96 dBm (BLE mode)
RSSI -20 to -90 dBm, 1 dB resolution
Antenna Integrated antenna
Power Consumption
Radio Tx 13.6mA @ +8dBm, 5.3mA @ 0dB (DCDC, 3V)
Radio Rx 5.4mA @ 1 Mbps (DCDC, 3V)
CPU – Running 56µA/MHz running from flash, 3.6mA @ 64MHz
TBDµA/MHz running from RAM, TBDmA @ 64MHz
CPU – Idle TBDµA in ON mode, with RTC
0.7µA  in ON mode, no RAM retention, all blocks IDLE
0.4μA in OFF mode, +30nA per 4kB RAM retention
FCC FCC part 15 modular qualification – FCC ID: TBD
IC Industry Canada RSS-210 modular qualification – IC: TBD
ETSI EN 301 489-1 V2.1.1 & EN 301 489-17 V3.1.1
ETSI EN 300 328 V2.1.1
Bluetooth RF-PHY Component (Tested) – DID: TBD
Japan BMD-340 Type Acceptance Number: TBD


 Technical Documentation:

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