Introducing the BMD-300 (nRF52832)

On Oct. 5, Nordic Semiconductor kicks off the Global Tech Tour to announce the release of their latest system-on-chip, the nRF52832. The tour is an opportunity for embedded application development engineers to engage with the latest in Bluetooth Smart technology. Each seminar features a walkthrough of the nRF52 and an afternoon of software examples from the nRF52 SDK. The presentations are free (though registration is required) and each attendee will receive a free SDK.

The BMD-300 is slated for full production in Q1 2016. Samples available Q4 2015.

The nRF52 is the basis of our newest module, the BMD-300. As this series continues over the next few weeks, we’ll examine the new features of the nRF52 and the BMD-300 more in-depth. We think you’ll be just as excited about them as we are.

Nordic is revolutionizing Bluetooth Low Energy connectivity with the nRF52, an ultralow power SoC that’s ideal for Bluetooth Smart ANT and 2.4GHz ultralow power wireless application. The chipset, which is the basis of Rigado’s new BMD-300 BLE module, is based on a 32-bit ARM® Cortex™-M4 CPU with FPU and 512kB + 64kB RAM that operates at 64 MHz. The SoC’s 2.4GHz transceiver supports proprietary 2.4GHz protocol stack, Bluetooth Smart and ANT.

The nRF52 promises new possibilities in low-power development. It boasts high speed and ultralow power with an MCU that can take on complicated algorithms in real time and a processing speed of 64 MHz. The chipset’s new peripherals will allow for more centrally integrated functions – for example, the chip incorporates an I2S bus that allows for the use of AudioCodec, and NFC pairing capability promises a safer, more convenient user experience.

The nRF52 incorporates the same architecture and mature SDK as the nRF51, making for an easy, low-risk transition to the new chipset.



Meanwhile, here’s a trait-by-trait comparison of the nRF51 vs the nRF52:

nRF51/BMD-200 nRF52/BMD-300 What’s new?
Bluetooth 4.1 Bluetooth 4.2 Latest Bluetooth specification
ARM® Cortex™-M0 16mHz 32-bit processor ARM® Cortex™-M4 64mHz 32-bit m4f processor with FPU 5.5x Coremark score, 10-80x improvement in floating point applications
8.0mA TX (0dBm)/9.7mA RX 5.3mZ TX (0dBm)/5.4mA RX Nearly 50% current reduction
275 μA/MHz running from flash memory 38 μA/MHz running from flash memory 86% current reduction per mHz
150 μA/MHz running from RAM 35 μA/MHz running from RAM 75% current reduction per mHz
Supply voltage range 1.8 V to 3.6 V Supply voltage range 1.7 V to 3.6 V True 1.8V operation
256 kB or 128 kB embedded flash program memory 512 kB flash/64 kB RAM 2x Flash and RAM
15 GPIO pins 32 GPIO pins Full GPIO pinout
17 x 17 x 2.9 mm (BMD-200) 14 x 9.8 x 1.9 mm (BMD-300) 1/2 the area, 1/3 the volume
-25°C to +75°C operating temperature -40°C to +85°C operating temperature Full industrial temperature range



Additional features of the nRF52/BMD-300:

  • Single pin antenna interface
  • 5 mA peak current in RX and TX (0 dBm)
  • Data Watchpoint and Trace (DWT), Embedded Trace Macrocell (ETM), and Instrumentation Trace Macro cell (ITM)
  • Trace port
  • Fully automatic LDO and DC/DC regulator system
  • Support for concurrent multi-protocol
  • Type 2 Near Field Communication (NFC-A) Tag with wakeup on field
  • 3 x 4 channel Pulse Width Modulator units with EasyDMA
  • Digital microphone interface (PDM)
  • 5x 32-bit timers with counter mod

Applications for the nRF52/BMD-300:

  • Internet of Things (IoT)
  • Home automation
  • Sensor networks
  • Building automation
  • Personal Area Networks
  • Health/fitness sensor and monitor devices
  • Medical devices
  • Key-fobs + wrist watches
  • Interactive entertainment devices
  • Remote controls
  • Gaming controllers
  • Beacons
  • A4WP wireless chargers and devices
  • Remote control toys
  • Computer peripherals and I/O devices
  • Mouse
  • Keyboard
  • Multi-touch trackpad



Keep up with the BMD-300 on our products page and by subscribing at the top or sidebar of this page. Visit Nordic to learn more about the nRF52832 and the Global Tech Tour. Register today!