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Copy file name to clipboardExpand all lines: content/hardware/06.nicla/boards/nicla-sense-me/datasheet/datasheet.md
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# Description
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The **Arduino® Nicla Sense ME** is our smallest form factor yet, with a range of industrial-grade sensors packed into a tiny footprint. Measure process parameters such as temperature, humidity and movement. Dive into edge computing with powerful data fusion capabilities. Make your own industrial-grade wireless sensing network with the onboard BHI260AP, BMP390, BMM150 and BME688 Bosch® sensors.
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# Target areas:
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wireless sensor networks, data fusion, artificial intelligence, gas detection
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# Features
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-**ANNA-B112** Bluetooth® Module
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-**nRF52832** System-on-chip
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- 64 MHz Arm® Cortex®-M4F microcontroller
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- 64 KB SRAM
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- 512 KB Flash
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- RAM mapped FIFOs using EasyDMA
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- 2x SPI (one is accessible via pin header)
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- 2x I2C (one is accessible via pin header)
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- 12-bit/200 ksps ADC
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- 2.400 - 2.4835 GHz Bluetooth® (5.0 via cordio stack, 4.2 via ArduinoBLE)
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- Internal antenna
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- Internal 32 MHz oscillator
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- 1.8V Operating Voltage
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-**Bosch® BHI260AP** - AI smart sensor hub with integrated IMU
- Electric charge for standard scan: 0.18 mAh (5 scans - 1 min)
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- Major Sensor outputs
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- Index for air quality (IAQ)
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- bVOC- & CO2-equivalents (ppm)
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- Gas scan result (%)
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- Intensity level
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-**ATSAMD11D14A-MUT** Microcontroller
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- Serial to USB Bridge
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- Debugger interface
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# Description
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<pstyle="text-align: justify;">
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The Arduino Nicla Sense ME is our smallest form factor yet, with a range of industrial-grade sensors packed into a tiny footprint. Measure process parameters such as temperature, humidity, and movement. Dive into edge computing with powerful data fusion capabilities. Make your own industrial-grade wireless sensing network with the onboard BHI260AP, BMP390, BMM150, and BME688 sensors from Bosch®.
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</p>
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# Target Areas
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Wireless sensor networks, data fusion, artificial intelligence, and gas detection
|**Functions**| Serial to USB bridge, debugger interface |
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<divstyle="page-break-after: always;"></div>
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## The Board
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### Application Examples
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## Functional Overview
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### Block Diagram
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<divstyle="page-break-after:always;"></div>
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### Microcontroller
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The Arduino® Nicla Sense ME is powered by a nRF52832 SoC within the ANNA-B112 module (MD1). The nRF52832 SoC is built around an Arm® Cortex®-M4 microcontroller with a floating point unit running at 64 MHz. Sketches are stored inside the nRF52832 internal 512 KB FLASH which is shared with the bootloader. 64 KB SRAM is available to the user. The ANNA-B112 acts as an SPI host for the data logging 2MB flash (U7) and the BHI260 6-axis IMU (U5). It is also the secondary for the BHI260 (U5) I2C and SPI connection. While the module itself runs at 1.8V, a level shifter can adjust the logic level between 1.8V and 3.3V depending on the LDO set in BQ25120 (U9). An external oscillator (Y1) provides a 32 KHz signal.
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### Bosch® BHI260 Smart Sensor System with Built-in 6-Axis IMU
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The Bosch® BHI260 is an ultra-low power programmable sensor, combining a Fuser2 core processor, 6-axis IMU (gyroscope and accelerometer) together with a sensor fusion software framework. The BHI260 is a smart sensor core (hosting a programmable recognition system), that handles communication with other sensors on the **Arduino Nicla Sense ME** via I2C and SPI connections. There is also a dedicated 2MB Flash (U2) used to store execute-in-place (XiP) code as well as data storage, such as Bosch® sensor fusion algorithm (BSX) calibration data. The BHI 260 is capable of loading custom algorithms that can be trained on a PC. The generated smart algorithm then operates on this chip.
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### Bosch® BME688 Environmental Sensor
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The **Arduino Nicla Sense ME** is able to perform environmental monitoring via the Bosch® BME688 sensor (U6). This provides capabilities for pressure, humidity, temperature as well as Volatile Organic Compound (VOC) detection. The Bosch® BME688 performs gas detection via an eNose metal oxide semiconductor array with a typical gas scan cycle of 10.8 seconds.
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### Bosch® BMP390 Pressure Sensor
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Industrial grade accuracy and stability in pressure measurements are provided by the BMP390 (U3) designed for prolonged use, with a relative accuracy of ±0.03 hPa and an RMS of 0.02 Pa in high-resolution mode. The Bosch® BMP390 is suitable for rapid measurements with a sampling rate of 200 Hz, or for low-power use with a sampling rate of 1 Hz, consuming less than 3.2 µA. U3 is controlled via an SPI interface to the BHI260 (U2), on the same bus as the BME688 (U6).
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### Bosch® BMM150 3-Axis Magnetometer
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The Bosch® BMM150 (U4) provides accurate 3-axis measurements of the magnetic field with compass-level accuracy. Combined with the BHI260 IMU (U2), Bosch® sensor fusion can be used to obtain high-accuracy spatial orientation and motion vectors for the detection of heading in autonomous robots as well as predictive maintenance. There is a dedicated I2C connection to the BHI260 (U2), acting as the host.
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### RGB LED
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An I2C LED driver (U8) drives the RGB LED (DL1) and is capable of a maximum output of 40 mA. It is driven by the ANN-B112 (U5) microcontroller.
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### USB Bridge
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