Ray Wang wrote a blog post review of the Hi-Link HLK-RM04 Serial-to-WiFi module:
It’s a pretty easy-to-use and low-cost solution to add WiFi capability to Arduino or similar microcontroller boards. Basically it allows you to receive/send Ethernet buffers through serial RX/TX pins. Programming wise, it’s similar to using the standard Arduino Ethernet shield. The module can also function as a WiFi router for changing configurations etc.
You can find Ray’s post on Rayshobby.
1. Changed the netmode to wifi client-serial
2. scan–> TP LINK NEW
3. provided the password of TP LINK NEW
4. static mode–> ip “192.168.1.10”
subnet “255.255.255.0”
gateway “192.168.1.1”
dns “192.168.1.1”
5. serial configure “57600,8,n,1”
6. “Apply”
but still i am encountering problem at the last step, after clicking on the “Apply” button
1. Hi-Link 1A23 gets disconnected automatically.
2. The static ip of the home network is not loaded.
After this procedure my task is to connect this hlk rm04 module with arduino uno r3. Kindly please help me