User's Manual
Table Of Contents
- 1.Product Profile
- 2.Functional Description
- 2.1 WiFi Indicator Flashing Description
- 2.2 Wifi Connection Status Indicator Pin
- 2.3 Socket Connection Status Indicator Pin
- 2.4 One-click Distribution Mode
- 2.5 Web Distribution Function
- 2.6 Serial to WIFI STA
- 2.7 Serial to WIFI AP
- 2.8 Serial Port Working State Conversion
- 2.9 Serial Port-network Data Conversion
- 2.10 Application Areas
- 3. AT Instructions
- 3.1 Query Current Module Version: at+ver
- 3.2 Local Port Operation: at+CLport
- 3.3 Set up Serial Port: at+uart
- 3.4 Set up DHCP: at+dhcpc
- 3.5 Set up Wifi Connection Mode: at+netmode
- 3.6 Set up TCP Connection Mode: at+mode
- 3.7 Set up Remote IP When Modules Work as Client
- 3.8 Set up Remote Port When Module Act as Client:
- 3.9 Set Parameter Submission: at+net_commit
- 3.10 System Restart: at+reconn
- 3.11 Set the Module's ssid and Password: at+wifi_
- 3.12 Set up Socket Connection Protocol: at+remote
- 3.13 Set Network Connection Parameters: at+net_ip
- 3.14 Query Network Connection Status in STA Mode:
- 3.15 Query Module MAC Address: at+Get_MAC
- 3.16 Set the Frame Length: at + uartpacklen
- 3.17 Set the Frame Time:at+uartpacktimeout
- 3.18 Set Bluetooth Name: at+ble_name
- 3.19 Configuration Software Description
- 4.Upgrade Introduction
- 8. Appendix A Document Revision
5
mode and the target ap hotspot is not connected.
(3) The wifi indicator flashes fourthly periodically: indicates that the module is in 2.4g ap
mode, but it does not indicate whether there is a sta client device connected.
(4) The wifi indicator flashes periodically: indicates that the module is in the 5.8g ap mode,
but it does not indicate whether there is a sta client device connected.
(5) The wifi indicator flashes quickly: indicates that the module is in the sta mode and is
connected to the wifi hotspot. When there is data transmission, the module LED will flash
quickly.
2.2 Wifi Connection Status Indicator Pin
GPIO58 pin is used as the indicator pin of the module’s wifi connection status in sta mode.
When the module's wifi is connected to the router, GPIO58 will output a high level, otherwise will
output low level, and other modes will output low level.
2.3 Socket Connection Status Indicator Pin
The GPIO59 pin is used as the indicator pin of the module socket's connection status. When the
socket connection is successful, the GPIO outputs a high level, otherwise outputs low level.
2.4 One-click Distribution Mode
For the IOT wifi module, based on cost and performance considerations, there is no touch
screen interactive interface like a mobile phone. Users can see the ap list on the mobile phone and
click the password to connect to the network. What should I do? One-click configuration is the wifi
module in promiscuous mode (can capture all 802.11 frames in the air), APP sends the SSID and
password to the wifi module through UDP broadcast or multicast through certain encoding rules, the
module parses out, and then connects to the router.
Install the Android app HLK-TCPdemo, then select Configure Networking, select the elian
mode, then select V5, input the password, click to open the configuration and start the configuration.
When the distribution network is successful, the module will change from double flash to quick flash,
indicating network successful connected.