Arduino Nano 33 BLE Sense

Code: ABX00031
Arduino Nano 33 BLE Sense
$29.50
tax not included
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Small, powerful, BT connected and with all the sensors you may need to design innovative applications.

  • Overview
  • Tech Specs
  • Estimate shipping date, mid July 2019.

    This compact and reliable Nano board is built around the NINA B306 module for BLE and Bluetooth 5 communication; the module is based on Nordic nRF 52840 processor that contains a powerful Cortex M4F and the board has a rich set of sensors that allow the creation of innovative and highly interactive designs.


    Its architecture, fully compatible with Arduino IDE Online and Offline, has a 9 axis Inertial Measurement Unit (IMU), temperature, pressure, humidity, light, color and even gestures sensors and a microphone that are managed through our specialised libraries. Its reduced power consumption, compared to other same size boards, together with the Nano form factor opens up a wide range of applications.


    This allows the design of wearable devices and gesture based projects that need to communicate to other devices at a close range. Arduino Nano 33 BLE Sense is ideal for interactive automation projects thanks to the multiprotocol BT 5.0 radio.

    Dimensions: 45x18mm

  • This board is based on the nRF 52840 microcontroller.

    Clock 64MHz
    Flash 1MB
    RAM 256KB

    Please note: Arduino Nano 33 BLE Sense only supports 3.3V I/Os and is NOT 5V tolerant so please make sure you are not directly connecting 5V signals to this board or it will be damaged. Also, as opposed to Arduino Nano boards that support 5V operation, the 5V pin does NOT supply voltage but is rather connected, through a jumper, to the USB power input.

    To avoid such risk with existing projects, where you should be able to pull out a Nano and replace it with the new Nano 33 BLE Sense, we have the 5V pin on the header, positioned between RST and A7 that is not connected as default factory setting. This means that if you have a design that takes 5V from that pin, it won’t work immediately, as a precaution we put in place to draw your attention to the 3.3V compliance on digital and analog inputs.

    5V on that pin is available only when two conditions are met: you make a solder bridge on the two pads marked as VUSB and you power the NANO 33 IoT through the USB port. If you power the board from the VIN pin, you won’t get any regulated 5V and therefore even if you do the solder bridge, nothing will come out of that 5V pin. The 3.3V, on the other hand, is always available and supports enough current to drive your sensors. Please make your designs so that sensors and actuators are driven with 3.3V and work with 3.3V digital IO levels. 5V is now an option for many modules and 3.3V is becoming the standard voltage for electronic ICs.

    The Bluetooth is managed by a NINA B306 module.

    The IMU is a LSM9DS1 and it is managed through I2C.

    The LPS22HB reads barometric pressure and environmental temperature.

    The HTS221 senses relative humidity.

    The ADPS-9960 is a digital proximity, ambient light, RGB and gesture sensor.

    The MP34DT05 is the digital microphone

    Crypto keys are managed by the ATECC608A crypto chip.

    The board has a two 15 pins connectors - one on each side -,  pin to pin compatible with the original Arduino Nano.

    Pin Funcion Type Description
    1 D13 Digital GPIO
    2 +3V3 Power Out Internally generated power output to external devices
    3 AREF Analog Analog Reference; can be used as GPIO
    4 A0/DAC0 Analog ADC in/DAC out; can be used as GPIO
    5 A1 Analog ADC in; can be used as GPIO
    6 A2 Analog ADC in; can be used as GPIO
    7 A3 Analog ADC in; can be used as GPIO
    8 A4/SDA Analog ADC in; I2C SDA; Can be used as GPIO (*)
    9 A5/SCL Analog ADC in; I2C SCL; Can be used as GPIO(*)
    10 A6 Analog ADC in; can be used as GPIO
    11 A7 Analog ADC in; can be used as GPIO
    12 VUSB  Power In/Out Normally NC; can be connected to VUSB pin of the USB connector by shorting a jumper
    13 RST Digital In Active low reset input (duplicate of pin 18)
    14 GND Power Power Ground
    15 VIN Power In Vin Power input
    16 TX Digital USART TX; can be used as GPIO
    17 RX Digital USART RX; can be used as GPIO
    18 RST Digital Active low reset input (duplicate of pin 13)
    19 GND Power Power Ground
    20 D2 Digital GPIO
    21 D3/PWM Digital GPIO; can be used as PWM
    22 D4 Digital GPIO
    23 D5/PWM Digital GPIO; can be used as PWM
    24 D6/PWM Digital GPIO; can be used as PWM
    25 D7 Digital GPIO
    26 D8 Digital GPIO
    27 D9/PWM Digital GPIO; can be used as PWM
    28 D10/PWM Digital GPIO; can be used as PWM
    29 D11/MOSI Digital SPI MOSI; can be used as GPIO
    30 D12/MISO Digital SPI MISO; can be used as GPIO

    (*) As opposed to other Arduino Nano boards, pins A4 and A5 have an internal pull up and default to be used as an I2C Bus so usage as analog inputs is not recommended. Opposed to Arduino Nano boards that support 5V operation, the 5V pin does NOT supply voltage but is rather connected, through a jumper, to the USB power input.

    On the bottom side of the board, under the communication module, debug signals are arranged as 3x2 test pads with 100 mil pitch. Pin 1 is the bottom left one with the USB connector on the left and the test pads on the right.

    Pin Function Type Description
    1 +3V3 Power Out Internally generated power output to be used as voltage reference
    2 SWD Digital nRF52480 Single Wire Debug Data
    3 SWCLK Digital In nRF52480 Single Wire Debug Clock
    5 GND Power Power Ground
    6 RST Digital In Active low reset input