# About the usage of Rev2 esp8266 at command

**URL:** <https://bbs.aprbrother.com/t/about-the-usage-of-rev2-esp8266-at-command/676>\
**Category:** Arduino\
**Created:** [August 5, 2016, 7:58am UTC](https://bbs.aprbrother.com/t/about-the-usage-of-rev2-esp8266-at-command/676 "2016-08-05T07:58:20Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![owen](https://bbs.aprbrother.com/letter_avatar_proxy/v4/letter/o/b2d939/32.png) [@owen](https://bbs.aprbrother.com/u/owen)\
**Post date:** [August 10, 2016, 8:59am UTC](https://bbs.aprbrother.com/t/about-the-usage-of-rev2-esp8266-at-command/676/21 "2016-08-10T08:59:56Z")

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It still doesn’t work with these changes , like the one before changed .

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**Author:** ![aprilpea](https://bbs.aprbrother.com/user_avatar/bbs.aprbrother.com/aprilpea/32/9_2.png) [@aprilpea](https://bbs.aprbrother.com/u/aprilpea)\
**Post date:** [August 11, 2016, 1:40am UTC](https://bbs.aprbrother.com/t/about-the-usage-of-rev2-esp8266-at-command/676/22 "2016-08-11T01:40:46Z")

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You should change the baud rate to 115200 in NODEMCU FIRMWARE PROGRAMMER. I think it can’t work with baud rate 230400.

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**Author:** ![owen](https://bbs.aprbrother.com/letter_avatar_proxy/v4/letter/o/b2d939/32.png) [@owen](https://bbs.aprbrother.com/u/owen)\
**Post date:** [August 16, 2016, 6:38pm UTC](https://bbs.aprbrother.com/t/about-the-usage-of-rev2-esp8266-at-command/676/23 "2016-08-16T18:38:53Z")

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I’ve solved the problem , really thanks for your help

[Previous page](https://bbs.aprbrother.com/t/about-the-usage-of-rev2-esp8266-at-command/676.md?page=1)