# How to send AT commands on MangOH yellow board?

**URL:** <https://mangoh.discourse.group/t/how-to-send-at-commands-on-mangoh-yellow-board/4888>\
**Category:** mangOH Yellow\
**Created:** [July 21, 2020, 1:56am UTC](https://mangoh.discourse.group/t/how-to-send-at-commands-on-mangoh-yellow-board/4888 "2020-07-21T01:56:18Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\
**Post date:** [July 21, 2020, 3:17am UTC](https://mangoh.discourse.group/t/how-to-send-at-commands-on-mangoh-yellow-board/4888/4 "2020-07-21T03:17:09Z")

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suggest you taking a look on this schematic and see if there is testing point for you to use:

> **[mangoh\_yellow\_21.pdf](https://mangoh.io/uploaded-documents/Reference/mangOH%20Yellow/Hardware/Schematics/mangoh_yellow_21.pdf)**
>
> 4.21 MB

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