In order to make sure our RTC/timing isn't drifting too far off, we need to do a table test where we hit or drop something on the table at a very specific time (which we write down) and then check whether the time we get from the SD card matches the time we recorded.
In order to make sure our RTC/timing isn't drifting too far off, we need to do a table test where we hit or drop something on the table at a very specific time (which we write down) and then check whether the time we get from the SD card matches the time we recorded.