网络上很多用单片机驱动继电器的图，经过测试不是太复杂，难弄！就是太简单，不稳定。这个图是本人经过测试后的，完全可靠！-Relay drive with microcontroller diagram of the network, after the test is not too complicated, hard to get! Is too unstable. This figure is that I have been tested, and totally reliable!