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For this purpose, you might need a real-time clock (RTC) or use the timer inbuilt in your microcontroller . Most microcontrollers have unreliable timers as they tend to exhibit lagging after a while. Below is a simple algorithmic step to follow: Step 1: SET TIME for which TARE should occur. That is ...

Very useful thread, you raised important question!

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To get a higher resolution, you should increase the measurement time.
It simply takes more than a minute to give a sample when using such a low power consumption.

Yes, that is true