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document RTC and periodic query

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King Kévin 2017-01-21 20:57:29 +01:00
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README.md
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@ -39,6 +39,12 @@ Connections LED (cathode) <-> board (all LED anodes are connected to the +3.3V r
- query; PA6
- submit; PA7
RTC
---
The onboard Real Time Clock (RTC) is used to track the uptime a periodically start querying all electricity meter for their measurement value.
The time interval between the periodic queries is hard coded in `main.c`.
ESP8266
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