ESP8266 Developer Zone The Official ESP8266 Forum 2015-09-10T21:47:54+08:00 https://bbs.espressif.com:443/feed.php?f=7&t=1089 2015-09-10T21:47:54+08:00 2015-09-10T21:47:54+08:00 https://bbs.espressif.com:443/viewtopic.php?t=1089&p=3646#p3646 <![CDATA[connecting WROOM-02 properly]]> I've been working with WROOM-02 for a while. I can't find a wiring that works for all chips in a stable way.
By working, I mean that I can send and execute AT commands.
By stable, I mean that the system does not reset or go into an unresponsive state.

Here's what I do:
SETUP1:
on one chip, this works ( it writes "Ready" and I can execute AT commands):

Image

when I try to do this:
SETUP2:
Image

it doesn't, even though when I chech, IO0 and IO2 are in UP state..

on another chip, SETUP2 worked, but the the chip started to flush gibberish and didn't work in any configuration.

What am I doing wrong? Am I ruining the chips? Do I need to add resistors anywhere?
Thanks!

Statistics: Posted by ilans — Thu Sep 10, 2015 9:47 pm

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