ESP8266 Developer Zone The Official ESP8266 Forum 2016-05-18T10:58:13+08:00 https://bbs.espressif.com:443/feed.php?f=7&t=1484 2016-05-18T10:58:13+08:00 2016-05-18T10:58:13+08:00 https://bbs.espressif.com:443/viewtopic.php?t=1484&p=6953#p6953 <![CDATA[Re: ESP 12 - Strange behaviour]]>
So sorry for missing your post.

Have you resolved your problem?

Whether uart interface has been connected to USB-SERIAL connector or not, it won't affect the working of ESP-12 module.

UART interface is only for uart communication or debug.

BTW, how you define that if the ESP-12 module works normally.

Thanks.

Statistics: Posted by Espressif_Kelly — Wed May 18, 2016 10:58 am

]]> 2015-12-05T13:13:01+08:00 2015-12-05T13:13:01+08:00 https://bbs.espressif.com:443/viewtopic.php?t=1484&p=4909#p4909 <![CDATA[ESP 12 - Strange behaviour]]>
I have ESP 12q module when I apply power without connecting Tx, Rx pin to USB-SERIAL connector it won't start but If I connect tx, rx pin to USB-SERIAL connector and apply power it starts and works normally. I'm using 3.3v external power source rather than USB power source from laptop. I have wired it according to attached diagram. I have two ESP 12q modules and both giving same problem.

Any one have idea whats is wrong ?

Thanks & Regards,
Prakash P.
esp 12q.png

Statistics: Posted by parmar7725274 — Sat Dec 05, 2015 1:13 pm

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