2.2 Application schematics
Note: The power supply must be guaranteed at 2.4V~3.6V. To ensure that the module can work stably, it is
recommended to choose an LDO with a current greater than 500mA externally.
3. Quick start
The E103-W02 module has the following 5 modes.
Mode
Description
NORMAL
In this mode, there is no difference with V2.0 version, that is, it supports 1-way TCP
SERVERor1-wayTCPClientor1-wayUDP,andalsosupportsremoteATcommand
function.
MQTT
In this mode, the generic MQTT client function is supported, and it supports 1-way
subscribe Topic and 1-way reportTopic at the same time. ReportingTopic.
HTTP
In this mode, generic HTTP client is supported, supporting POST and
GET request methods.
MULTIS
Inthismode,multipleTCPlinksaresupported,andthemoduleasTCPSERVERcanallow4
TCPclientaccesses.
MULTIC
In this mode, multiple TCP/UDPlinks are supported, and the module, as a TCP/UDP
client, can access two servers at the same time. The module as a TCP/UDPclient can
accesstwoserversatthesametime.
The E103-W02 module is easy to use. In order to let the user get familiar with the module quickly, we will guide the
user to use the module quickly for different modes, and guide the user to configure and communicate in various modes
with simple settings.
The test process uses the AT command, and we have developed a web page HTTP for users to quickly configure in order
to make a quick connection. This section of the test is operated by using the serial debugging assistant, and the module
will display back the current command issued, so that the user can quickly understand the usage of the AT command.
