User's Manual

5.1.1 Open Serial Port upgrade Software

Open serial port upgrade software HLK-RM58S_uart.exe, input lowercase string c, select

serial port number, select the corresponding baud rate through digital key 1 / 2 / 3 / 4

Figure 16. Serial upgrade interface

5.1.2 Start to upgrade

Enter the space bar, press and hold the ES0 (GPIO0) and RST (SYS_RST_N) buttons at the same time,

then release the button RST,0.5s then release the button ES0, computer side software will automatically

upgrade the module.

Figure 17. Serial port is upgrading

5.2 Introduction of Network upgrade methods

In order to realize the network upgrade of the module, it is necessary to connect the line module

through wifi, and then to upgrade the data transmission according to the ip of the module.