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The rtcfifo module uses RTC memory to store sensor samples across deep-sleeps, making it possible to batch up samples for less frequent uploads. This component uses 9 RTC memory slots for control, and a variable number of slots for sample storage (see rtcfifo.prepare() on how to control the size/location of the latter). When used together with the rtctime module, it also exposes the convenience function rtcfifo.dsleep_until_sample() which can be used to easily take readings on a regular basis without having to manually take into account time spent awake to get an accurate sleep time. The format used for storing samples is quite dense, and allows for 16 bits of data in a fixed point format (per sample). |
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| .. | ||
| rtcaccess.h | ||
| rtcfifo.h | ||
| rtctime.h | ||