在使用安可信官方教程烧录bin文件的教程后，串口调试输出
/scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 8
cnt
connected with 115, channel 6
dhcp client start...
wifi connect fail!
wifi connect fail!
wifi connect fail!
wifi connect fail!
wifi connect fail!
ip:10.1.4.43,mask:255.255.248.0,gw:10.1.7.254
TCP: Connect to domain a1URMHwCNkp.iot-as-mqtt.cn-shanghai.aliyuncs.com:1883
DNS: Found, but got no ip, try to reconnect
pm open,type:2 0
Free memory
TCP: Connect to domain a1URMHwCNkp.iot-as-mqtt.cn-shanghai.aliyuncs.com:1883
TCP: Reconnect to: a1URMHwCNkp.iot-as-mqtt.cn-shanghai.aliyuncs.com:1883
