The Nano 33 BLE Sense with headers comes with the soldered header. It is Arduino’s 3.3V AI enabled board in the tiniest available form factor i.e. 45x18 mm!

If you are not aware then have a look at  The new addition also has BLE with onboard sensors as well WiFi&BLE IoT board. 

The Arduino Nano 33 BLE Sense is a completely new board on a well-known form factor. It comes with a series of embedded sensors:
1. 9 axis inertial sensor: what makes this board ideal for wearable devices
2. Humidity, and temperature sensor: to get highly accurate measurements of the environmental conditions.
3. Barometric sensor: you could make a simple weather station
4. Microphone: to capture and analyse sound in real time
5. Gesture, proximity, light colour and light intensity sensor: estimate the room’s luminosity, but also whether someone is moving close to the board.

Resources used for programming:

• Download software :
  
• Getting starter guide:
  
• Step by step examples:
  
• Programming reference:
  

 

The Arduino Nano 33 BLE Sense is based on the nRF52840 microcontroller.

Technical Specifications of Arduino Nano 33 BLE Sense:

 

Microcontroller	nRF52840
Operating Voltage	3.3V
Input Voltage (limit)	21V
DC Current per I/O Pin	15 mA
Clock Speed	64MHz
CPU Flash Memory	1MB (nRF52840)
SRAM	256KB (nRF52840)
EEPROM	none
Digital Input / Output Pins	14
PWM Pins	all digital pins
UART	1
SPI	1
I2C	1
Analog Input Pins	8 (ADC 12 bit 200 ksamples)
Analog Output Pins	Only through PWM (no DAC)
External Interrupts	all digital pins
LED_BUILTIN	13
USB	Native in the nRF52840 Processor
IMU	LSM9DS1 ()
Microphone	MP34DT05 ()
Gesture, light, proximity	APDS9960 ()
Barometric pressure	LPS22HB ()
Temperature, humidity	HTS221 ()
Length	45 mm
Width	18 mm
Weight	5 gr (with headers)