Parameters
The Arduino Nano 33 BLE Sense is based on the nRF52840 microcontroller.
| 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) |
The Arduino Nano 33 BLE Sense is an evolution of the traditional Arduino Nano, but featuring a lot more powerful processor, the nRF52840 from Nordic Semiconductors, a 32-bit ARM® Cortex®-M4 CPU running at 64 MHz. This will allow you to make larger programs than with the Arduino Uno (it has 1MB of program memory, 32 times bigger), and with a lot more variables (the RAM is 128 times bigger). The main processor includes other amazing features like Bluetooth® pairing via NFC and ultra low power consumption modes.
Embedded Artificial Intelligence
The main feature of this board, besides the impressive selection of sensors, is the possibility of running Edge Computing applications (AI) on it using TinyML. You can create your machine learning models using TensorFlow™ Lite and upload them to your board using the Arduino IDE.
Arduino’s developer Sandeep Mistry and Arduino’s advisor Dominic Pajak have prepared an introductory tutorial to AI on the Nano 33 BLE Sense, but also a more advanced guide on color detection.
An Improved Arduino Nano
If you used Arduino Nano in your projects in the past, the Nano 33 BLE Sense is a pin-equivalent substitute. Your code will still work, but remember, it operates at 3.3V. This means that you need to revise your original design in case it is not 3.3V compatible. Besides that, the main differences to the classic Nano are: a better processor, a micro-USB connector, and all of the sensors mentioned above.
You can get the board with or without headers, what will allow you embedding the Nano inside any kind of inventions, including wearables. The board comes with tessellated connectors and no components on the B-side. These features allow you to solder the board directly onto your own design, minimizing the height of your whole prototype.
Oh, and did we mention the improved price? Thanks to a revised manufacturing process, the Arduino Nano 33 BLE Sense is really cost efficient … what are you waiting for? Upgrade now!
