使用PEM通知led灯点亮时间和熄灭时间 间接观察PWM原理(Indirect observation of PWM principle by using PEM to notify LED lights and extinguish time)

使用cc2530模块， HC-06蓝牙模块， 通过手机控制，调节PWM 控制LED灯(Using the CC2530 module, the HC-06 Bluetooth module, the control of the mobile phone, the control of the PWM to control the LED lamp)