Product Specs

2. Hardware Design Notice
2.1 Application Diagram
The module support general UART and network standard. Built-in TCP/IP protocol stack, users
can use the module to add network function. It also can establish independent internet controller
to realize data transmission between UART and WiFi internet. Using GWF-KM26 WiFi module,
traditional UART device could be connected to the WiFi network without changing any
configuration, to provide complete and quick solutions for UART device. There are two methods to
control external devices, the first is that external MCU control WiFi module UART. Secondly, KM26
controls external devices by its self-contained UART.
The following is application diagram:
2.2 GPIO
There are 9 GPIO in the module, the minimum interrupt response time is 1ms, these GPIO could be
configured by software directly like UART, LED, IR control.
Figure 2- 1 Application Diagram
Figure 2- 2 GPIO reference design