SparkFun
Nicla Voice
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 NDP1...
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- 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
- 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)
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- DSP
- Digital signal processing means using software or hardware to analyse or modify signals such as audio, vibration, or sensor readings. A board suited to DSP is useful when a project needs fast maths for filtering, synthesis, or real-time signal analysis.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IMU
- An IMU (Inertial Measurement Unit) combines motion sensors, typically an accelerometer and gyroscope and sometimes a magnetometer, to measure movement and orientation. It can sense motion, tilt, vibration, rotation, and changes in direction, which is useful for tasks such as navigation, stabilisation, gesture detection, and asset tracking.
- magnetometer
- A sensor that measures magnetic fields, often used to work out compass direction. It matters because nearby magnets, motors, or metal objects can affect readings and may require calibration.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
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Nicla Voice Datasheet
Datasheet · 2.4 MB · Click any page to view full size
Nicla Voice Schematic
Schematic · 8.3 MB · Click any page to view full size
Supplier page — sparkfun.com
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