Gyrosens is a professional manufacturer and OEM/ODM provider of inertial sensors and navigation solutions since 2008.

GSMTI3

GSMTI3 is a self-contained Attitude Heading and Reference System (AHRS). This fully functional self-contained module can be easily designed by adding limited hardware components.

Feature:
● Full performance AHRS on 12.1 x 12.1 mm modules
● Flip/pitch accuracy (dynamic) 1.0°
● Heading accuracy 2.0°
● Extremely low requirements for the main processor
● Unified interface for the entire product lifecycle
● Low power (45 mW at 3.0V)
● Compatible with PLCC28 PCB (12.1 x 12.1 x 2.6 mm)

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Feature

GSMTI3 is a self-contained Attitude Heading and Reference System (AHRS). This fully functional self-contained module can be easily designed by adding limited hardware components.

The fully documented industry standard communication protocol takes into account the customization of data messages in terms of data, frequency, and output format. The signal is processed entirely on the board, occupying only a small amount of resources on the host, making it very suitable for applications in simple MCU operating environments. Under dynamic conditions, the flipping and pitching accuracy reaches 1° RMS, and the deflection accuracy reaches 2° RMS. The output is very stable for control and stability of any object and navigation such as drones.

Pin configuration

Num	Name	Type	Description
7	VDDIO	Power	Digital supply voltage
8	GND
23	UART_RX	UART interface	Receiver data input
24	UART_TX	UART interface	Transmitter data output
25	GND
18	AUX_RX A	Auxiliary GNSS interface	Receiver data input from GNSS module
19	UX_TX	Auxiliary GNSS interface	Transmitter data output to GNSS module
20	SYNC_PPS	Auxiliary GNSS interface	Pulse per second input from GNSS module

Figure 3: Pin configuration of GSMTI3 module (top view)

Technical Specifications

Parameter		GSMTI3
Power supply parameter
Supply voltage		3.3V DC
Product performance
ATTITUDE ACCURACY	Yaw accuracy (dynamic)	2° ( rms)
ATTITUDE ACCURACY	Roll / pitch accuracy (dynamic)	1° ( rms)
Gyroscope	Full scale	±2000°/s
	In-run bias stability	10°/h
	Non-linearity	0.1%
	Scale Factor variation	0.05%
	g-Sensitivity	0.1°/s/g
	Noise density	0.01º/s/√Hz
	Bandwidth (-3dB)	180Hz
Accelerometer	Full scale	±16g
	In-run bias stability	0.1mg
	Non-linearity	0.5%
	Scale Factor variation	0.05%
	Noise density	200 μg/√Hz
	Bandwidth (-3dB)	180HZ
Magnetometer	Full scale	6gauss
	Non-linearity	0.1%
	Resolution	120ugauss
	Noise (rms)	50ugauss
INTERFACES	serial port communication	TTL
INTERFACES	Output frequency	100hz@230400 baud rate
Environment
Operating temperature		-40°C~85°C

GSMTI3-EN-V1

DOCX

Application

● Miniature aerial vehicles
● Delivery drones
● Video drones

Our in-house designers and engineers have produced countless great designs for customers from different industries

● Agricultural UAVs
● Satcom on the Move (SotM)
● Construction machinery

Our in-house designers and engineers have produced countless great designs for customers from different industries

● Ship monitoring
● Autonomous agriculture
● Warehouse automation

● Robotic arms
● Handheld devices
● Pedestrian navigation

● VR/AR and HMDs
● Navigation aiding

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