Overview
The Adafruit LIS331HH Triple-Axis High-G Accelerometer Breakout – STEMMA QT is designed for projects that experience extreme motion or impacts where typical accelerometers reach their limits. Powered by the ST LIS331HH sensor, it can measure acceleration ranges up to ±24g, making it ideal for robotics, crash detection, motion analysis, vibration monitoring, and other high-dynamics applications.
Unlike common accelerometers that max out around ±16g, the LIS331HH provides selectable ±6g, ±12g, and ±24g ranges, allowing you to capture high-impact events with reliable precision. The sensor also includes configurable high-pass and low-pass filters, helping you tune the readings for your specific application—whether filtering vibration noise or isolating sudden motion.
Communication is flexible thanks to both I2C and SPI interfaces, making it compatible with a wide variety of microcontrollers and development boards such as Arduino, Raspberry Pi, and Feather boards. The breakout board includes onboard voltage regulation and logic level shifting, allowing it to work safely with 3.3V and 5V systems.
Designed in the convenient STEMMA QT / Qwiic form factor, the board features plug-and-play JST connectors that enable quick solderless connections and easy sensor chaining. For advanced integrations, all pins are also broken out to standard 0.1" header pads, giving you full control over interrupts, chip select, and interface configuration.
With features like programmable interrupts, motion detection, free-fall detection, sleep-to-wake capability, and orientation detection, the LIS331HH breakout is a powerful solution for engineers and makers building systems that require accurate high-G motion sensing.
Specification
| Specification | Details |
|---|---|
| Sensor IC | ST LIS331HH |
| Axes | 3-axis (X, Y, Z) |
| Selectable Measurement Range | ±6g, ±12g, ±24g |
| Output Resolution | 16-bit |
| Communication Interface | I2C and SPI |
| Default I2C Address | 0x18 |
| Alternate I2C Address | 0x19 (selectable via jumper) |
| Filters | Configurable high-pass and low-pass filters |
| Interrupts | 2 independent programmable interrupt generators |
| Motion Functions | Motion detection, free-fall detection, sleep-to-wake, 6D orientation detection, embedded self-test |
| Connector Type | Dual STEMMA QT / Qwiic compatible connectors |
| Logic / Power Compatibility | 3V to 5V compatible |
| Onboard Support Circuitry | Voltage regulator and logic level shifting |
| Pin Breakout | Standard 0.1" header pads provided |
| Typical Platform Compatibility | Arduino, Raspberry Pi, Feather, and other microcontroller platforms |
| Form Factor | Breakout board with STEMMA QT integration |
Pinout
| Pin | Name | Description |
|---|---|---|
| VIN | Power Input | Supply voltage input (3V–5V). Connected to onboard regulator. |
| 3Vo | 3.3V Output | Regulated 3.3V output from the onboard voltage regulator. |
| GND | Ground | Common ground reference for power and logic. |
| SCL | I2C Clock / SPI Clock | I2C clock line. Also used as SPI clock (SCK) when SPI mode is enabled. |
| SDA | I2C Data / SPI MOSI | I2C data line. Also functions as SPI MOSI in SPI mode. |
| INT | Interrupt Output | Interrupt pin used for motion detection, free-fall, and configurable events. |
| CS | Chip Select | SPI chip select input. Pull low to enable SPI communication. |
| SDO | SPI MISO / I2C Address Select | SPI MISO output. In I2C mode it sets the device address (0x18 or 0x19). |
| I2 | Interrupt 2 | Secondary interrupt output from the accelerometer. |
| NC | No Connect | Reserved pin, not connected internally. |
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