Chengdu Ebyte Electronic Technology Co., Ltd.
E103-W03 _User Manual _EN_V1.1
Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd
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5.10 Static IP
In STA mode, it can support setting static IP, which is convenient for communication with fixed IP. It should be noted
that the static IP address must be in the same network segment as the target router or target AP, otherwise the IP cannot be
allocated and cannot work normally. For example, if the target AP address is 192.168.1.1, then the static IP address must
be set to 192.168.1.x. Otherwise, the IP address cannot be assigned normally, and the module cannot work. Static IP
related parameters can only be set or queried in STA mode, other modes do not support corresponding AT commands.
5.11 Restore factory parameters of pins
This module will only actively detect the level status of GPIO12 pin within 3 seconds when it is powered on, and if it is
low, the parameters will be restored to the factory default parameters. There is no need to restart when using it, and the
GPIO12 pin will be set to low level after the parameters are successfully restored.
5.12 Scan nearby AP information
When the module works in STA mode, you can use the AT command to scan the nearby AP information, if there is, print
the AP information through the serial port, the format is as follows:
Fixed head
SSID
MAC(BSSID)
channel
rssi
+scan:
Maximum 32
bytes
17 bytes
Maximum 3 bytes Maximum 3 bytes
+scan:
TEST_ZW
14:AD:CA:AA:91:D6 4
-69
1. Scanning for nearby APs will only take effect in STA mode, when the connection mode is manual connection, and no
wifi connection is established, otherwise it will return ERR=-5, indicating that this operation is not supported in this
state.
2. Each parameter is separated by a comma ',' and ends with a carriage return (\r\n). MAC addresses (BSSID) are
separated by a semicolon ':'
3. The module can only scan the AP information in the 2.4G frequency band. The channel of 2.4G is [1,13].
4. A maximum of 30 AP information can be scanned at a time.
5.13 Default parameters
Parameter
category
Parameter name
Parameter value
Related instructions
Serial port
baud rate
115200
AT+UART
digit
8
stop bit
1
Parity
none
serial timeout
40
（
ms
）
Serial frame length
1000
working frequency
2.4G
