Nicla Voice

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The 22.86 x 22.86mm Nicla Voice allows for easy implementation of always-on speech recognition on the edge, because it integrates Syntiant’s powerful NDP120 Neural Decision processor to run multiple AI algorithms, leveraging bio-inspired, advanced machine learning to automate complex tasks.

Nicla Voice comes with a comprehensive package of sensors: in addition to its microphone, it features a smart 6-axis motion sensor and a magnetometer, making it the ideal solution for predictive maintenance, gesture/voice recognition and contactless applications.

Nicla Voice offers onboard Bluetooth® Low Energy connectivity to easily interact with existing devices, and is compatible with Nicla, Portenta and MKR products. Finally, its ultra-low power consumption makes 24/7 always-on sensor data processing possible, with the option of battery-powered standalone operation.

Small enough to fit into wearables or retrofit existing machinery, enabling AI yet requiring minimal energy: Nicla Voice is the “impossible” combination that makes voice recognition on the edge possible – and easier than ever.

Key benefits include:

  • Powerful processor with integrated Deep Neural Networks in a tiny form factor (22.86 x 22.86mm)
  • Integrated microphone, magnetometer and smart 6-axis IMU
  • Onboard Bluetooth® Low Energy connectivity
  • Add speech recognition capabilities to your projects
  • Ultra-low power for 24/7 always-on sensor data processing
  • Standalone when battery powered
  • Compatible with Portenta and MKR products

Just say the word. Voice detection and voice recognition can change the way you interact with machines, systems and devices. With always-on sensors – courtesy of low power consumption – all you need is a wake word or trigger sound: no buttons to search for while you are driving, no interfaces to clutter your designs. And Nicla Voice not only hears everything, but understands what sounds mean: thanks to advanced neural processing, it can learn to interpret audio inputs such as passwords and commands.

Tiny but mighty. The Nicla family features Arduino Pro’s smallest form factor to date. This means Nicla Voice can easily be used to upgrade or retrofit existing machines and systems, and is particularly suitable for wearable products such as helmets and smart bands – also thanks to its long, battery-powered autonomy.

More than words. Nicla Voice can handle multiple applications simultaneously to recognize different speakers, pick up on multiple wake-up words and run keyword spotting at the same time. But there’s more than voice commands out there, of course. Nicla Voice can be trained to identify noisy bearings that require maintenance, glass shattering or intruders trying to enter, and more.

Peace and quiet. Nicla Voice lets you tune out in complete safety: integrated into smart headphones, it offers enhanced audio quality with echo-cancellation and noise-suppression features that allow users to focus on their job, spare their ears from loud industrial environments, yet still be warned immediately if an alarm sound is detected.

  • Microprocessor: Syntiant® NDP120 Neural Decision Processor™ (NDP):
    • 1x Syntiant Core 2™ ultra-low power deep neural network inference engine
    • 1x HiFi 3 Audio DSP
    • 1x ARM® Cortex® M0 core up to 48 MHz
  • Microcontroller: Nordic Semiconductor nRF52832:
    • 64 MHz Arm® Cortex M4
  • Sensors:
    • High performance microphone (IM69D130)
    • 6-Axis IMU (BMI270)
    • 3-axis magnetometer (BMM150)
  • I/O: Castellated pins with the following features:
    • 1x I2C bus (with ESLOV connector)
    • 1x serial port
    • 1x SPI
    • 2x ADC
    • Programmable I/O voltage from 1.8-3.3V
  • Interface:
    • External microphone connector (ZIF)
    • USB interface with debug functionality
  • Memory:
    • 512KB Flash / 64KB SRAM
    • 16MB SPI Flash for storage
    • 48KB SRAM dedicated for NDP120
  • Dimensions & weight:
    • 22.86 x 22.86mm
    • 2g
  • Operating temperature: 0°C to +85°C (32°F to 185°F)
  • Power:
    • High speed USB (500mbps)
    • Pin Header
    • 3.7V Li-po battery with integrated battery charger and fuel gauge (BQ25120AYFPR)
  • Connectivity: Bluetooth® Low Energy (ANNA-B112)

Nicla Voice Product Help and Resources

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

3 Programming

Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #2571 / about a year ago / 1

    Can this do voice recognition over the USB port (i.e. not using the microphone)? I think you can power it via USB as well?

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