Gy-85 IMU: Unterschied zwischen den Versionen
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! Feature !! Specification | ! Feature !! Specification | ||
|- | |- | ||
| Hersteller || | | Hersteller || Shenzhen Harztec Technology Co. | ||
|- | |- | ||
| | | GTIN || 4060137000751 | ||
|- | |- | ||
| Spannungsversorgung<br/> || VCC 3 | | HAN || SE05005 | ||
|- | |||
| Category || Acceleration/Gyroscope/Compass Sensor | |||
|- | |||
| Chips || | |||
*ITG3205 (3-Achsen-Drehratensensor ) | |||
ADXL345 (3-Achsen-Beschleunigungssensor) | |||
IST8310 (3-Achsen Digitalkompass) | |||
|- | |||
| Dimensions ( L × W × H ) || 2,20 × 1,68 × 0,30 cm | |||
|- | |||
| Kommunikationsprotokoll|| I2C | |||
|- | |||
| Spannungsversorgung<br/> || VCC 2,0 V to 3,6 V | |||
|- | |- | ||
| Stromaufnahme <br/> || 30-50 mA<br/> | | Stromaufnahme <br/> || 30-50 mA<br/> | ||
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! Pin !! GY-85 !! Signal !! Arduino Uno R3 | ! Pin !! GY-85 !! Signal !! Arduino Uno R3 | ||
|- | |- | ||
| 1 || VCC_IN|| | | 1 || VCC_IN|| ??? || ??? | ||
|- | |- | ||
| 2 || 3.3V || | | 2 || 3.3V || Versorgungsspannung 3,3 V || VCC 3,3 V | ||
|- | |- | ||
| 3 || GND || 0 V | | 3 || GND || 0 V || GND | ||
|- | |- | ||
| 4 || SCL || | | 4 || SCL || I2C Clock || A5 | ||
|- | |- | ||
| 5 || SDA || | | 5 || SDA || I2C Data || A4 | ||
|- | |- | ||
| 6 || M_DRDY || | | 6 || M_DRDY || Magnetometer Data Ready, Interrupt für neue Daten || | ||
|- | |- | ||
| 7 || A_INT1 || | | 7 || A_INT1 || ACC Interrupt 1, z. B. Free-Fall / Threshold / Data Ready || | ||
|- | |- | ||
| 8 || G_INT || | | 8 || G_INT || GYRO Interrupt für bestimmte Gyro-Ereignisse || | ||
|} | |} | ||
Aktuelle Version vom 18. März 2026, 11:15 Uhr
| Autor: | Syed Muhammad Abis Rizvi |
| Sprache: | DE EN |
Introduction
Overview:
The GY-85 is a compact 9-axis inertial measurement unit (IMU) which is the combination of three on board sensors.
1. Gyroscope — ITG3205
It measures angular velocity (rotation speed)
Axes: X, Y, Z
Result : °/second
2. Accelerometer — ADXL345
It measures tilt and acceleration.
Axes: X,Y,Z
Able to identify:
movement due to gravity (tilt)
Beneficial for: motion detection and balance
3. Magnetometer — (HMC5883L / IST8310 variant) It determines the magnetic field of Earth
provides a heading for the compass (North)
Interference-sensitive
Chips:
ITG3205 (3-axis gyroscope) ADXL345 (3-axis accelerometer) HMC5883L (3-axis digital compass) - IST8310 from 01.03.2020
Technical data:
IIC communication protocol Built-in regulator and logic converter to support 3.3V/5.0V microcontrollers I2C Digital Interface Module size: 22mm * 16.8mm Mounting hole 3mm 2.54 mm standard pin interface, convenient bread plate experiment connection Scope of delivery:
1x GY-85 (ITG3205 ADXL345 HMC5883L/IST8310) Nine Axis Modules 2x Pin Header
Working principle
Technical Overview
| Feature | Specification |
|---|---|
| Hersteller | Shenzhen Harztec Technology Co. |
| GTIN | 4060137000751 |
| HAN | SE05005 |
| Category | Acceleration/Gyroscope/Compass Sensor |
| Chips |
ADXL345 (3-Achsen-Beschleunigungssensor) IST8310 (3-Achsen Digitalkompass) |
| Dimensions ( L × W × H ) | 2,20 × 1,68 × 0,30 cm |
| Kommunikationsprotokoll | I2C |
| Spannungsversorgung |
VCC 2,0 V to 3,6 V |
| Stromaufnahme |
30-50 mA |
| Temperaturbereich |
-40 bis +85 °C |
| Empfohlene Baudrate |
Default 9600 Baud (variabel 4800 … 230400) |
| GNSS-System | GPS (L1-Band, 1575,42 MHz) |
| Positionsgenauigkeit | typ. 2,5 m CEP unter freiem Himmel |
| Geschwindigkeitsgenauigkeit | 0,1 m/s |
| Zeitgenauigkeit | ca. ±30 ns |
| Time to First Fix (TTFF) |
|
Pin Assignment
| Pin | GY-85 | Signal | Arduino Uno R3 |
|---|---|---|---|
| 1 | VCC_IN | ??? | ??? |
| 2 | 3.3V | Versorgungsspannung 3,3 V | VCC 3,3 V |
| 3 | GND | 0 V | GND |
| 4 | SCL | I2C Clock | A5 |
| 5 | SDA | I2C Data | A4 |
| 6 | M_DRDY | Magnetometer Data Ready, Interrupt für neue Daten | |
| 7 | A_INT1 | ACC Interrupt 1, z. B. Free-Fall / Threshold / Data Ready | |
| 8 | G_INT | GYRO Interrupt für bestimmte Gyro-Ereignisse |
Measurement method
Measuring Circuit
Software
Arduino IDE
Demo: DEMO GY-85.zip
Simulink
Measurement
Video
Datasheets
| # | Filename | Content |
|---|---|---|
| 1 | ADXL345.pdf | Analog Devices: Digital Accelerometer ADXL345, Datasheet, EN |
| 2 | IST8310 Datasheet v1.0.pdf | sentek: IST8310 3D Magnetometer, Datasheet, EN |
| 3 | ITG3205.pdf | sentek: IST8310 User Manual v1.5, EN |
| 4 | IST831020User20Manualv15Eng.1457496818.pdf | InvenSense: ITG-3205 3-axis MEMS gyro v1.0, Product Specification, EN |
| 5 | Shop Link | eckstein-shop.de |
Related Links
SVN-Repository
https://svn.hshl.de/svn/HSHL_Projekte/trunk/Arduino_Sensorsammlung