Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Options	AS201 (10-Axis), AS201-9 (9-Axis), AS201-6 (6-Axis)
Communication Interface	UART / TTL Serial
Operating Voltage	3.3V - 5.0V DC
Data Update Rate	Up to 200Hz
Built-in Sensors	3-Axis Gyro, 3-Axis Accelerometer, 3-Axis Magnetometer, Barometer
Output Data	Roll, Pitch, Yaw, Quaternion, Linear Acceleration
Static Accuracy	Roll/Pitch: ±0.1°, Yaw: ±0.3°
Operating Temperature	-40°C to +85°C
Dimensions	25mm x 25mm x 3.5mm
Application Scope	UAVs, Robotics, Stabilization Systems, VR Devices

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for camera gimbals

Used this for a 3-axis camera gimbal. The low latency and high update rate make the footage incredibly smooth. The magnetometer calibration routine included in the firmware works well after the initial setup.

Anonymous

Mar 27, 2026

Rating: 5/5

Excellent stability for custom UAVs

I integrated the 10-axis version into my custom racing drone frame. The yaw hold is significantly better than my previous MPU6050 setup. The UART output is clean and easy to parse with my flight controller code.

Anonymous

Mar 26, 2026

Rating: 5/5

Professional grade performance

Impressed by the static accuracy specs. Compared it against a much more expensive tactical grade IMU, and for general navigation purposes, the Hi-Link AS201 holds up remarkably well.

Anonymous

Mar 21, 2026

Rating: 4/5

Good value for money

For the price, you get a lot of functionality. The 9-axis mode is sufficient for most hobby projects. Just ensure your logic level converter is set correctly if running at 3.3V.

Anonymous

Mar 11, 2026

Rating: 4/5

Great precision, documentation could be better

The sensor data is very stable even with motor vibration. However, the protocol manual was a bit sparse on error codes. Once I figured out the checksum calculation, it worked flawlessly for our balancing robot project.

Anonymous

Mar 04, 2026

Rating: 5/5

Robust and reliable

We deployed ten of these modules in an industrial monitoring system. They have been running 24/7 for three months without drift issues or crashes. The temperature compensation seems very effective.

5 FAQ

Q: Does this module support I2C communication?

A: No, the AS201 series primarily supports UART/TTL serial communication for data output. Please check the pinout diagram in the datasheet for TX/RX connections.

Q: How do I perform magnetometer calibration?

A: Calibration is done by sending specific command strings via UART while rotating the device in all directions. Detailed step-by-step instructions are available in the 'Calibration Guide' section of the user manual.

Q: Can this be used directly with Arduino Uno?

A: Yes, but since the module operates at 3.3V logic levels, you should use a logic level converter when connecting to the 5V Arduino Uno TX/RX pins to prevent damage.

Q: Is there a Python library available for parsing the data?

A: We do not provide an official Python library, but the protocol is open. Many users have created open-source parsers available on GitHub that work well with Raspberry Pi and standard PCs.

Q: What is the difference between the AS201-6 and AS201-10?

A: The AS201-6 provides 6-axis data (Gyro + Accelerometer). The AS201-10 includes the 6-axis sensors plus a 3-axis Magnetometer and a Barometric Pressure sensor for full attitude and altitude estimation.

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