Delta DFCM-NNN40 (EOL)

Delta DFCM-NNN40-EVB provides prototype board for ARM Cortex-M0, BLE and Wi-Fi function. The developed platform supports ARM mbed toolchain and Arduino form factor.


The Delta DFCM-NNN40-EVB is a development board with combo module which combines with Bluetooth Low Energy (BLE) and Wi-Fi technology designs. BLE use Nordic nRF51822 SoC and Atmel SmartConnect Wi-Fi solution, which contains Bluetooth Low Energy-compliant 2.4GHz multiprotocol radio and ARM® Cortex®-M0 processor; Additionally, Delta DFCM-NNN40 kit has Wi-Fi solution with ultra-low power IEEE 802.11 b/g/n. It is a highly integrated platform to implement application when Wi-Fi and/or BLE connection is considered. Delta DFCM-NNN40-EVB also provides rapidly developed platform. The hands-on application can be generated from mbed online IDE and use USB drag-and-drop method to load application to Delta DFCM-NNN40. Besides, NNN40-EVB has mounted temperature/humidity sensor (PN: HTS221), the library and example application is available in mbed. The BLE and Wi-Fi API are also enabled in mbed SDK. Besides, the HDK support USB CMSIS-DAP, CDC, MSC (for DnD) function. The module could be controlled more quickly with the above feature.


Delta DFCM-NNN40-EVB has pin out for SPI, I2C, UART, ADC and GPIO pin. It is included the specific pin out such as RF switch (switch radio antenna to Wi-Fi or BLE) PIN and SWD PIN. The detail is described in the mbed Delta DFCM-NNN40 getting started.

Note that following pinout image only refer to EVB Ver.03 which is the MP version of this platform




  • Delta DFCM-NNN40 WiFi-BLE MCU combo module
    • NORDICSemi nRF51822 with ARM® Cortex®-M0 processor
    • 32MHz embedded crystal, 256KB flash memory, 32KB SRAM
    • 2xSPI, I2Cx2, USART, ADC, GPIOs
    • LGA42 pin package
    • Built in RF switch for BLE and WLAN using a single antenna
  • WLAN
    • Wi-Fi solution IEEE 802.11 b/g/n (1x1)
    • Supports IEEE 802.11 WEP, WPA, WPA2 Security
    • mbed socket API compatible.
  • Bluetooth Low Energy
    • Bluetooth 4.1 specification compliant
    • Maximum UART baud rate up to 1 Mbps
    • AES HW encryption
  • Delta DFCM-NNN40 HDK
    • USB drag and drop programming
    • USB Virtual COM port for serial terminal
    • CMSIS-DAP interface for programming and debugging
    • Accepts power through USB or external source
    • Pin header for current measurement

Import programBLE_HTS_Demo


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See also


Components / Delta DFCM-NNN40
Delta DFCM-NNN40 can also serve as a component; a self-contained WiFi network card that interface with any mbed platform (act as the host) through SPI.