呼吸灯程序,单片机产生PWM驱动LED灯做呼吸效果-Respiration lamp procedures, generate PWM microcontroller LED driver do breathing effect

matlab提取呼吸和心率数据的程序，很好用，自己编写的，能在频域观察曲线！-matlab extraction procedures respiration and heart rate data, very good, I have written, can be observed in the frequency domain curve!