ESP8266 Developer Zone The Official ESP8266 Forum 2016-09-12T22:03:23+08:00 https://bbs.espressif.com:443/feed.php?f=65&t=2261 2016-09-12T22:03:23+08:00 2016-09-12T22:03:23+08:00 https://bbs.espressif.com:443/viewtopic.php?t=2261&p=9798#p9798 <![CDATA[Re: CH_PD is draining Li coin cell battery[Done]]]> Statistics: Posted by eriksl — Mon Sep 12, 2016 10:03 pm

]]> 2016-06-08T10:32:37+08:00 2016-06-08T10:32:37+08:00 https://bbs.espressif.com:443/viewtopic.php?t=2261&p=7254#p7254 <![CDATA[Re: CH_PD is draining Li coin cell battery]]>
CH_PD, chip enable pin of ESP8266EX, is active high and cannot be dangled, otherwise its electrical level will be uncertain.

For battery application, you can refer to below link for details.

viewtopic.php?f=61&t=840

More questions, please feel free to let us know.

Thanks.

Statistics: Posted by Espressif_Kelly — Wed Jun 08, 2016 10:32 am

]]> 2016-06-08T00:42:38+08:00 2016-06-08T00:42:38+08:00 https://bbs.espressif.com:443/viewtopic.php?t=2261&p=7248#p7248 <![CDATA[CH_PD is draining Li coin cell battery[Done]]]>
I am trying to power-On my ESP-8266-01 chip with Li-CR2032 battery (coin cell with 3.0V & 220mAH).
Esp is getting powered on, but within 30 seconds battery is getting drained.
After debugging further, I found that if CH_PD pin is pulled high, battery goes down very fast,
but if I keep CH_PD dangling, battery is somewhat stable ( but no Wi-Fi from Esp).
can you let me know if I am trying something wrong here?
Any insight will be helpful.

thanks,
Rupak

Statistics: Posted by rupak426 — Wed Jun 08, 2016 12:42 am

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