# Adafruit BNO055 9-DoF IMU (absolute orientation)

> Adafruit 4646 BNO055 9-DoF absolute-orientation IMU (STEMMA QT, Rev D): Bosch sensor with on-chip fusion — Euler angles and quaternions at 100 Hz; accel ±2–16 g, gyro up to ±2000 °/s, magnetometer ±1300 µT; I2C (0x28/0x29), 3.3–5 V supply with regulator, 25.4 × 20.3 mm board.

- Manufacturer: Adafruit Industries
- Part number: 4646
- Category: IMUs & motion sensors
- Canonical page: https://www.xirkit.io/products/adafruit-bno055-9-dof-imu-absolute-orientation-1aef
- Pinout: https://www.xirkit.io/products/adafruit-bno055-9-dof-imu-absolute-orientation-1aef/pinout
- Structured JSON: https://www.xirkit.io/products/adafruit-bno055-9-dof-imu-absolute-orientation-1aef/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Sensor type | ahrs |
| Sensor IC | BNO055 |
| Axes | 9 DoF |
| Accelerometer range | 16 ±g |
| Gyroscope range | 2,000 ±°/s |
| Magnetometer range | 1,300 ±µT |
| Max output data rate | 100 Hz |
| On-chip sensor fusion | Yes |
| Interface | I2C |
| I2C address | 0x28 (0x29 with ADR high) |
| Supply voltage | 3.3–5 V |
| Dimensions | 25.4 × 20.32 × 1.6 mm |

## Pinout (8 pins, 0 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| VIN | — | power in | — | power_in | — | — | — | — | — | — | — |
| 3VO | — | power out | — | power_out | — | — | — | — | — | — | — |
| GND | — | ground | — | ground | — | — | — | — | — | — | — |
| SCL | — | i2c scl | — | scl | — | — | — | — | — | — | — |
| SDA | — | i2c sda | — | sda | — | — | — | — | — | — | — |
| RST | — | reset | — | rst | — | — | — | — | — | — | — |
| INT | — | interrupt | — | int | — | — | — | — | — | — | — |
| ADR | — | address | — | adr | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.adafruit.com | 29.95 USD | in_stock | 2026-09-29 | https://www.adafruit.com/product/4646 |

## FAQ

**What voltage powers the Adafruit BNO055 9-DoF IMU?**

Supply range 3.3–5 V.

**How much does the Adafruit BNO055 9-DoF IMU cost?**

From $29.95 at www.adafruit.com. Prices are observed unit prices before tax and shipping.

**What are the Adafruit BNO055 9-DoF IMU dimensions?**

25.4 × 20.32 × 1.6 mm. A STEP model is available for enclosure fit checks.

**Where does this Adafruit BNO055 9-DoF IMU data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [Adafruit BNO055 9-DoF IMU (absolute orientation) datasheet](https://cdn-learn.adafruit.com/downloads/pdf/adafruit-bno055-absolute-orientation-sensor.pdf)
- [www.adafruit.com listing](https://www.adafruit.com/product/4646)

## Part graph

### Built from

- BNO055 — sensor on the Adafruit BNO055 9-DoF Absolute Orientation IMU

### Alternatives (by use case)

- [Adafruit ICM-20948 9-DoF IMU (MPU-9250 Upgrade)](https://www.xirkit.io/products/adafruit-icm-20948-9-dof-imu-mpu-9250-upgrade-3f89) — Both serve balance, orientation and motion tracking — check the trade-offs; $29.95 vs $19.95
- [Adafruit BNO085 9-DoF IMU (sensor fusion)](https://www.xirkit.io/products/adafruit-bno085-9-dof-imu-sensor-fusion-5a52) — Both serve balance, orientation and motion tracking — check the trade-offs; $29.95 vs $29.5