JP10与J12，JP8和JP1用8PIN排线连接，20秒倒计时换通道时 黄灯闪烁3秒，本实验只开通了一个通道有兴趣的学员可以自己加通道。-JP10 and J12, JP8 and JP1 cable to connect with 8PIN, 20 seconds countdown yellow light flashes when changing channels for 3 seconds, the experiment only opened a channel Interested students can add their own channels.