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Microduino-10DOF module use IIC interface to connect with core module and integrates 4 kinds of sensors. MPU6050 uses to 3-axis gyroscope and 3-axis accelerometer, HMC5883L uses to 3-axis compass,BMP085 for temperature and pressure sensor. This module widely used in automation control, such as aeromodelling,self-balancing car.
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Features
- Three kinds of sensors all use I2c interface to connect with core module which save the IO interface, widely used in embedded system;
- Small, cheap, stackable, opened platfrom;
- Open source hardware circuit design, compatible with the Arduino IDE development environment for programming;
- Defines unified interface Microduino specification and contain rich peripheral modules. Set up the quick connection with other Microduino modules and sensors easily and flexibly.
- 2.54 pitch row female connector for easy integration into breadboard.
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Specification
Magnetic field intensity sensor：HMC5883L
- HMC5883L including the most advanced high-resolution HMC118X series magnetoresistive sensor;
- Honeywell patents with integrated amplifier, a drive automatic degaussing, offset calibration, the accuracy of the compass can be controlled analog to digital 12 bit converter in the 1 ° ~ 2 °;
- Simple I2C serial bus interface.
Digital Pressure Sensors：BMP180
- BMP180 comprising resistive pressure sensor, AD converter, and a control unit;
- Wherein the control unit includes E2PROM and I2C interfaces. BMP180 transmission uncompensated temperature and pressure values. E2PROM stores 176bit individual standard data, the standard data for compensation of temperature dependence and the other sensor parameters.
- Available range: 300hPa to 1100hPa (above sea level corresponding -500m to +9000 m)
- Lowest absolute accuracy can be achieved 0.03hPa
- UP = pressure data (16 to 19bit)
- UT = temperature data (0 to 15bit)
Triaxial accelerometer + three-axis gyro sensor：MPU6050
- It integrates a 3-axis MEMS gyroscope, three-axis MEMS accelerometer, and a scalable digital motion processor DMP (Digital Motion Processor);
- Digital output 6 or 9 axis rotation matrix, quaternion, Euler angles format (EulerAngleforma) data fusion algorithms;
- With 131LSBs / ° / sec sensitivity and whole cell sensing range is ± 250, ± 500, ± 1000 and ± 2000 ° / sec of 3-axis angular velocity sensor (gyroscope);
- Programmable control and program control range of ± 2g, ± 4g, ± 8g and ± 16g 3-axis accelerometer;
- Remove the shaft between the accelerator and the gyro sensitivity, reducing the impact of setting given and sensor drift;
- the complexity of data fusion algorithms, sensors synchronization, load position sensors can be reduce by useing Digital motion processing (DMP: DigitalMotionProcessing) engine
- A digital output temperature sensor;
- Gyro operational current: 5mA, gyroscope standby current: 5uA; accelerator operation current: 500uA, accelerator power saving mode current: 40uA @ 10Hz up to 400kHz fast mode of I2C.
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Documents
- Snapshot of Microduino-10DOF schematic
- Microduino-10DOF Eagle source file 【download】
- Microduino-10DOF main chips and devices
- 3-axis gyroscope + 3-axis accelerometer: 【MPU6050】
- 3-axis compass: 【HMC5883L】
- temperature + pressure sensor: 【BMP085】
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Development
Arduino Libraries and support packages
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Applications
Download
Use of open source of MWC test 10dof module
- the hardware need to be prepare：Microduino FT232R、Microduino Core、Microduino 10dof；
- the software need to be prepare：MultiWii（Linux/Mac/Windows）、MultiWii source code（Arduino）、Arduino IDE（above 1.0 version）；
- First use IED open MultiWii.ino in MultiWii directory，the project can be load, the provide source code has already configuration for Microduino 10dof，Select board Microduino Core (Atmega328P@16M,5V)，Can be downloaded directly；
- Then turn on the PC，for example Windows，Execution MultiWiiConf.exe which in MultiWiiConf \ application.windows32 directory，Select the corresponding serial port, click Start to test modules.
OLED test 10dof module
- the hardware need to be prepare：Microduino FT232R、Microduino Core、Microduino 10dof、Microduino OLED；
- the software need to be prepare：Arduino IDE（above 1.0 version）、Microduino provide test source code（Arduino）、BMP180 Library、HMC5883 LLibrary、MPU6050 Library、I2Cdev Library、U8glib Library；
- the downloaded folder will be put in to library folder, which is the libraries within Arduino IDE installation folder;
- start Arduino IED，Open Microduino provides test source code，Select board Microduino Core (Atmega328P@16M,5V)，Can be downloaded directly；
- OLED can be observed after the download is complete：
- Top row is used to test HM5883L，The module is placed in the level, turn the module can be observed pointer always points to an angle;
- The middle row is the test used BMP180, observed pressure and temperature data;
- The last line is used to test MPU6050, tilt module can observe the ball rolling toward the corresponding direction.
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History
- 2013年4月8日 @老潘orz发现HMC5883L S1管脚未连接VDD。
- 2013年2月28日，测试版出炉，无大问题。
- 2013年2月18日，初版打样。
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Pictures
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