意法出单芯片的9轴传感器了。
http://www.eetrend.com/newproduct/100036358http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/DM00050102.pdf
以后飞控板的体积能进一步减小了。 这种芯片得多少钱呢？估算一下呗，要是几百RMB的话咋办 为智能设备而生，性能仅供娱乐只用，价格不会高。
每次见别人说9轴我就觉得很蛋疼，这东西也只能是三轴吧，倒是有9个自由度。 The LSM333D is an inertial module capable of providing 9 DOF (degrees of freedom) inertial sensing by combining a 3D accelerometer, a 3D gyroscope and a 3D magnetometer in a system-in-package.
The LSM333D has linear acceleration full-scales of ±2g/±4g/±8g/±16g, a magnetic field full-scale of ±2/±4/±8/±12 gauss and an angular rate of 250/±500/±2000 dps. All full-scales available are fully selectable by the user.
The LSM333D includes an I2C serial bus interface supporting standard and Fast mode 100 kHz and 400 kHz, and SPI serial standard interface.
The system can be configured to generate interrupt signals, on dedicated pins, motion and magnetic field detection. Thresholds and the timing of interrupt generators are programmable by the end user.
Magnetic, accelerometer and gyroscope sensing can be enabled or set in Power-down mode separately for smart power management.
The LSM333D is available in a plastic land grid array package (LGA) and it is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.
DATASHEET
Key Features
3 acceleration channels, 3 angular rate channels, 3 magnetic field channels
±2/±4/±8/±16 g dynamically selectable linear acceleration full-scale
±2/±4/±8/±12 gauss dynamically selectable magnetic full-scale
±250/±500/±2000 dps dynamically selectable angular rate full-scale
16-bit data output
SPI / I2C serial interfaces
Analog supply voltage 2.4 V to 3.6 V
Power-down mode / Low-power mode
Programmable interrupt generators
Embedded temperature sensor
Embedded FIFO
ECOPACK® RoHS and “Green” compliant
官方参考价格$3.1
http://www.st.com/cn/analog/product/253513.jsp{:titter:} 唉..等到手上庫存用完再進新的。ST的sensor更新有夠快。 LGA要回流焊呢，一般人不好DIY 目前我觉得性价比比较好的 还是 invensense 的 MPU6050 跟 MPU6000
不过听说 invensense有了 9dof的集成传感器MPU9150 不知道怎么样
我最近也做了些板子 有需要找我 invensence网页上也有mpu9050了，估计再过几年一个小芯片就直接输出四元数 欧拉角之类的了，到时候我会很怀念现在研究姿态算法的经历的
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