WhyCan Forum(哇酷开发者社区)

Usage as STA
In this mode the ESP connects to the internet via an AP with ssid, password and offers at UART0 a SLIP interface with IP address 192.168.240.1. This default can be changed in the file user_config.h.

To connect a Linux-based host, start the firmware on the ESP, connect it via serial to USB, and use the following commands on the host:

sudo slattach -L -p slip -s 115200 /dev/ttyUSB0&
sudo ifconfig sl0 192.168.240.2 pointopoint 192.168.240.1 up mtu 1500
now

telnet 192.168.240.1 7777
gives you terminal access to the esp as router. On the ESP you then enter:

CMD>set ssid <your_ssid> 
CMD>set password <your_pw> 
CMD>set use_ap 0
CMD>save
CMD>reset
To get full internet access you will need aditionally a route:

sudo route add default gw 192.168.240.1
and a DNS server - add an appropriate entry (e.g. public DNS server) in /etc/resolv.conf, eg. by (as root):

echo "nameserver 9.9.9.9" > /etc/resolv.conf