ESP8266 Developer Zone The Official ESP8266 Forum 2015-08-23T03:05:32+08:00 https://bbs.espressif.com:443/feed.php?f=65&t=975 2015-08-23T03:05:32+08:00 2015-08-23T03:05:32+08:00 https://bbs.espressif.com:443/viewtopic.php?t=975&p=3369#p3369 <![CDATA[Re: VDD_RTC pin current consumption]]> Is that means, there is no normal way to make RTC clock power backup? If I will make some kind of plug, which need to work by timetable - first powerdown in mains and my clock working wrong? Cloud synchronizing is not enough, because there could be situation when no any internet or internet is down. My device will be small, so I wouldn't want to attach big batteries, hoped to use lithium button battery, if there should be real VDD_RTC power pad, which should eat might be hundreds of nanoamperes I guess. Do you have any solution for RTC power backup?

Statistics: Posted by AlexMelven — Sun Aug 23, 2015 3:05 am

]]> 2015-08-21T11:06:42+08:00 2015-08-21T11:06:42+08:00 https://bbs.espressif.com:443/viewtopic.php?t=975&p=3348#p3348 <![CDATA[Re: VDD_RTC pin current consumption]]>
VDD_RTC is a reserved pin and powered by internal LDO.
Thus, it can just be NC.

Thanks for your interest in ESP8266 !

Statistics: Posted by ESP_Faye — Fri Aug 21, 2015 11:06 am

]]> 2015-08-20T17:40:04+08:00 2015-08-20T17:40:04+08:00 https://bbs.espressif.com:443/viewtopic.php?t=975&p=3329#p3329 <![CDATA[VDD_RTC pin current consumption]]> Need for coin cell battery capacity calculation.

Statistics: Posted by AlexMelven — Thu Aug 20, 2015 5:40 pm

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