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===Enable OLED display===
Refer to [[How to enable OLED display]]
2. The sample file based on the version number is just because different versions of X728 use different GPIOs, they are basically the same. You can use a file comparison tool to view it, if you get it wrong, most likely you are using the wrong version of the sample file.
===Set and Read the RTC time===
PS: We only test this step on Raspberry Pi OS;