Uctronics Ultimate Starter Kit for Arduino Manual page 77

COM11(Arduino/Genuino Mega or Mega 2560)
AT+RST
Module is ready
reboot wifi is OK
APIP:"192.168.4.1"
STAIP:"192.168.2.200"
Server is set up
Connected
Send OK
Next, click button ON, the relay will be switched on
to the port NO. Click the button OFF, the relay will close, that means the port COM is
connected to the port NC. The status of the relay will also be shown in the serial monitor.
COM11(Arduino/Genuino Mega or Mega 2560)
AT+RST
Module is ready
reboot wifi is OK
APIP:"192.168.4.1"
STAIP:"192.168.2.200"
Server is set up
Connected
Send OK
CHO ON
Send OK
CHO OFF
Send OK
77
, that means the port COM is connected