Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	DFRobot
Model Number	SEN0251
Sensor Type	9-Axis IMU (Accelerometer, Gyroscope, Magnetometer)
Interface	I2C / UART
Operating Voltage	3.3V - 5V
Chipset	Bosch BNO055
Dimensions	24mm x 18mm x 3mm
Weight	4.5g
Output Data	Absolute Orientation (Euler, Quaternion, Linear Acceleration)
Compatibility	Arduino, Raspberry Pi, Python, C++

6 reviews

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for robotics projects

This sensor module is incredibly easy to integrate with my Arduino robot. The fusion algorithm works out of the box, providing stable orientation data without needing complex calibration code from scratch.

Anonymous

Mar 18, 2026

Rating: 5/5

Best value 9-axis sensor

I have tried several IMUs, and the BNO055 offers the best balance of price and performance. The internal processing saves a ton of CPU cycles on my flight controller.

Anonymous

Mar 16, 2026

Rating: 5/5

Exceeded expectations

Fast shipping and the product works exactly as described. The ability to switch between I2C and UART is a nice touch for different project requirements.

Anonymous

Mar 16, 2026

Rating: 4/5

Solid for prototyping

We used this for a quick prototype of a handheld scanner. It performed well under normal conditions. Just ensure you mount it rigidly to avoid vibration noise affecting the gyro.

Anonymous

Mar 12, 2026

Rating: 5/5

Beginner friendly

As someone new to sensors, I was worried about calibration. This module handles most of the heavy lifting. The DFRobot library made getting started trivial.

Anonymous

Mar 03, 2026

Rating: 4/5

Great accuracy, minor documentation gaps

The sensor itself is fantastic and very accurate for tilt and heading. I deducted one star because the wiki page could use more examples for Python users, but the community forums helped me figure it out.

5 FAQ

Q: What libraries are supported for this sensor?

A: DFRobot provides official libraries for Arduino and Python. There are also many community-supported libraries available for PlatformIO and other environments.

Q: Does this module come with a header pin soldered?

A: No, the module typically comes with unsoldered header pins to allow for flexible mounting options. You will need to solder them yourself.

Q: Is this compatible with 5V logic levels?

A: Yes, the board includes a voltage regulator and level shifter, making it safe to use with both 3.3V and 5V microcontrollers like the Arduino Uno.

Q: How long does the calibration process take?

A: Calibration time varies based on movement, but typically takes between 10 to 30 seconds of moving the sensor in a figure-8 pattern. The status register indicates when calibration is complete.

Q: Can I use this outdoors for compass heading?

A: Yes, it includes a magnetometer for compass heading. However, like all magnetic sensors, it should be kept away from large metal objects or strong magnetic fields which can interfere with accuracy.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

HC-SR501 Human Motion Infrared Sensor Module Compatible with Arduino micro:bit Eco-Friendly

$7.50

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range

$23.65

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

DHT22 Single-Bus Digital Temperature & Humidity Sensor AM2302 Module Electronic Building Blocks

$10.42

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

GY-30 302 Digital Light Intensity Illuminance Sensor BH1750FVI Module Light Sensor Ball

$7.41

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Metal Detector Module Non-Contact Metal Induction Sensor Detection Module Metal Detector

$8.70

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

E18-D80NK Infrared Obstacle Avoidance Sensor Proximity Switch Smart Robot Car 10-80cm

$6.30

OPT3001/3002/3004 Ambient Light Sensor Module Measures Visible Light Density Digital Optical Sensor

$8.14

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Soil Moisture Sensor Probe Soil Moisture Meter Detection Module Sensor Separate Probe

$2.39