在手机上实现汽车仪表盘的功能,该仪表盘可用于速度、里程、引擎转速的显示。-The dialchart of cars is enabled on the mobile phone, which can be used to show the speed, mileage and rotate speed of engines.

此代码由eclipse开发，应用于android手机，原本用于将单片机通过蓝牙串口传来的1024个数据进行FFT变换，然后显示出电机转速值，就是频率值的60倍，蓝牙串口和FFT是难点，如果打开工程发现提示错误，要求API5，可以设置那不报错，正常运行，API5为舍弃掉的一个API-Developed by the eclipse, this code applies to android phone, originally used for the microcontroller via Blu

可以根据用户输入实现类似汽车转速表功能和汽车当前时速功能-Android automotive instrument similar to animation, set in the ImageView animation, the meter pointer to the angle of rotation based on user input

arduino控制电机恒定转速,使用PID(Arduino constant speed of motor)