The IMU400 is a high‑precision 6‑axis MEMS inertial measurement unit (IMU) integrating three gyroscopes and three accelerometers for real‑time measurement of angular velocity and acceleration. It outputs data through a single RS422 asynchronous serial port, making it suitable for industrial systems requiring stable, high‑frequency inertial sensing.
With full‑temperature compensation, low drift, and robust mechanical design, the IMU400 delivers reliable performance in harsh environments such as robotics, autonomous systems, platform stabilization, and industrial motion control.
Installation error should be <0.05° relative to reference plane
🟦 Electrical Interface (J30J‑15TJL)
Pin
Function
1
TXD− (RS422 transmit low)
2
RXD− (RS422 receive low)
3
TST (Do not connect)
4
+3.3V
5
NRST (Reset)
6
Digital GND
8
VSUP +5V
9
TXD+ (RS422 transmit high)
10
RXD+ (RS422 receive high)
11
IO (External sync trigger)
15
Power GND
🟦 Output Data Format (Default)
Header: 0xAA 0x55
Frame length: 0x24
Gyro XYZ (float ×3)
Accel XYZ (float ×3)
Gyro temperature (float)
Accelerometer temperature (float)
Checksum (1 byte)
🟦 Applications
Robotics & automation
Platform stabilization
Motion control systems
Navigation & guidance
Industrial measurement
UAV / UGV / AGV inertial sensing
🟦 Why Use IMU400
The IMU400 offers industrial‑grade inertial sensing, combining high precision, low drift, and robust RS422 communication. Its configurable output frequency and baud rate make it adaptable to a wide range of real‑time control and motion tracking applications.
🟦 Why Choose HaisiTek
Advanced MEMS inertial sensor technology
Full‑temperature calibration & compensation
Industrial‑grade reliability and stability
High‑speed RS422 output
Strong engineering support & customization capability
No, the HS-MX1203GT module itself does not have a built-in GPS. It requires an external active GPS/BeiDou antenna connected via its MCX-female connector to obtain its own position, which is essential for transmitting AIS messages.
What is the default configuration, and how do I program it for my vessel?
The module ships with generic factory settings. You must configure it with your vessel's specific MMSI number, name, and call sign using our provided AIS CONFIGURATION PC software and a TTL-to-USB adapter cable. Once configured, these details are stored in the module.
Can I temporarily turn off the AIS transmission (Silent Mode)?
Yes. The module features a SILENT pin. By pulling this pin low (to GND), you can disable AIS transmission for privacy or in security-sensitive areas while continuing to receive AIS data from other vessels.
What kind of antenna should I use with this module?
You need two separate VHF antennas:
A dedicated GPS/GLONASS/BeiDou active antenna for the GPS port. Using high-quality, properly installed antennas is critical for optimal performance.
A dedicated AIS VHF antenna for the VHF port.
I'm designing a new device. Is technical documentation available?
Yes. We provide comprehensive documentation for integrators, including:
Schematic for Typical Application Circuits Please contact our technical support team to access these resources.
Datasheet & Pinout Definitions
NMEA Protocol Guide
Configuration Command Manual
What is the Minimum Order Quantity (MOQ) for this module?
The MOQ for standard models like the HS-MX1203GT is typically 10 units. We also support customizations for larger volume orders. Contact our sales team for an exact quote.
Do you offer sample orders for testing and evaluation?
Yes, we encourage and support product evaluation. Sample orders are available. Please get in touch with us to arrange a sample and discuss your testing requirements.
Still have questions? Contact our technical sales team for expert advice.
