Arduino’s Nicla Sense ME is a feature-packed, industrial-grade low-power AI/ML module that enables easy integration of always-on sensor-fusion workloads thanks to its compact size of just 22.86 x 22.86 mm and compatibility with the familiar Arduino ecosystem. Key application areas include IoT, smart building, industrial, smart agriculture, wearables, predictive maintenance, and more, with the following state-of-the-art sensors from Bosch Sensortec onboard:
- BHI260AP motion sensor system with integrated AI
- BMM150 magnetometer
- BMP390 pressure sensor
- BME688 4-in-1 gas (air quality, Volatile Organic Compounds (VOCs), Volatile Sulphur Compounds (VSCs), + more), pressure, temperature, and humidity sensor with integrated AI
The heart of the board is Nordic’s nRF52832 Bluetooth (4.2 LE) SoC, which is built around an Arm Cortex-M4 MCU running at up to 64 MHz and supported by 512 kB flash, 64 kB RAM, and 2 MB SPI flash for storage; an additional 2 MB QSPI memory is dedicated for the BHI260AP. The ultra-low power consumption of Nicla Sense ME enables 24/7 sensor data processing while running on a 3.7-V Li-po battery as a standalone unit – a battery charging circuit comes integrated – or integrated with other hardware with power via the micro-USB port (also used for programming and debugging) or the VIN pin header (3.5-5.5 V). Example current draws are as follows:
- Standby: 460 µA
- Running blink sketch: 960 µA
- Advertising with sensor polling at 1 Hz: 2.5 mA
- Advertising with sensor polling once per hour: 1.15 mA
The pinout of this module is illustrated in the diagram below:
At a glance, users are granted immediate access to 1x I2C bus (with ext. ESLOV connector), 1x serial port, 1x SPI, and 2x ADCs via the castellated pins. The I/O voltage is programmable at 1.8-3.3 V as per your interfacing requirements.
For more information, for example regarding the individual specifications of the onboard sensors, please consult this official datasheet.
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(Images sourced from Arduino)