WIFI module use 1: test. Punctuality atomic atk-wifi module uses the first test

1. The purpose of the experiment, use the at command to test, including the baud rate setting, etc.;
2. A USB-TTL module, connected to the WIFI module
VCC-VCC,
GND-GND
TXD-RXD
RXD-TXD;
3. Use the serial port assistant to
select the serial port and
select the serial port baud rate. The default is 115200, usually 115200 or 9600, one cannot use the other.
8,
1 stop bit and
0 check bits

Open the serial port

The connection is successful, a message will appear

Test:
AT space wrap and
receive will be OK.
AT+UART=115200,8,1,0,0 Carriage return and line feed
Click Send and
OK appears.