document RTC and periodic query
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@ -39,6 +39,12 @@ Connections LED (cathode) <-> board (all LED anodes are connected to the +3.3V r
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- query; PA6
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- query; PA6
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- submit; PA7
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- submit; PA7
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RTC
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---
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The onboard Real Time Clock (RTC) is used to track the uptime a periodically start querying all electricity meter for their measurement value.
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The time interval between the periodic queries is hard coded in `main.c`.
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ESP8266
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ESP8266
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