HiLink HLK-RM04 – Tiny and cheap Linux module

This is still a work in progress, I’ve found some very promising modules capable of running Linux (OpenWRT), and these are some notes about my attempts to use them:

I buy some modules and also a base board in Aliexpress. Each module is cheap, about 12 USD to 14 USD, shipping included. They have built in WiFi, 2 ethernet ports, two serial ports, USB, I2C, …

To convert them to OpenWRT I’ve used the information from two different places:



Much similar with the previous:


Other with a “simplified” OpenWRT distribution and some pre-built images


Hardware mod to connect to a SPI LCD:


To be continued… :-)


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