通过SIM300的通信，发短信来点亮LED灯。程序很完整，测试过没问题。-Through the SIM300 communication, send text messages to light up the LED lights. The program is very complete, tested no problem.

*红外测试程序，用单片机通过发射管发射38K的调制频率码，由一体化接收并解码由发光管显示。 *正常情况下，由于反射和高灵敏度接收，LED4（P1.3)一直闪烁，可以用黑色纸片完全遮挡接收头使 *之不能接收到发射管的信号，这是LED4熄灭。说明功能性正常-* The IR test program, with the microcontroller through launch tube 38K code modulation frequency integrated receive

keil 测试，基于STM32控制两个74HC595芯片点亮LED-keil test