Specification Sheet

ManualsBrandsWITMOTION ManualsAcceleration SensorsCL MPU9250 High-Precision 9-axis Gyroscope+Angle(XY 0.05° Accuracy)+Magnetometer with Kalman Filter, Low-Power 3-axis AHRS IMU Sensor for Arduino

WT901BLECL | Datasheet v20-0707 | http://wiki.wit-motion.com/english

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6.1.2 Single Return Register Data Packet

Single return data packet needs to send register instruction first:

FF AA 27 XX 00

--XX is register number. The register number please refer to 6.3. Example

as below:

Function

Instruction

Read Magnetic Field

FF AA 27 3A 00

Read Quaternion

FF AA 27 51 00

Read Temperature

FF AA 27 40 00

After sending the instructions, the module will turn back a data packet 0x55

0x71. There are register addresses and 7 registers data (Fixed upload 8

registers). Return data format as below:

Start register(2 byte) + register data(16 byte, 8 registers)

Note: 0xNN is an accurate value, low byte first, high byte last.

Packet

header

Sign

Start

low byte

Start

high

byte

Start

(No.1)

data

low byte

Start

(No.1)

data

high byte

......

No.8

data

low

byte

No.8

data

high

byte

0x55

0x71

RegL

RegH

0xNN

......

0xNN