Due to the shortage of the chip that has a unique built-in MAC address,  we no longer list the R4S board with a unique MAC address for retail sales.  If you want to order the R4S board with a unique MAC address,  you have to place an order with a minimum order quantity of 100 pieces.

For detailed steps refer to: https://github.com/friendlyarm/cpu-temperature-test-script

Related Resources

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WIKI: NanoPi_R4S 개발자 메뉴얼