---
title: "AT Command Trigger Questions"
url: "https://maker.wiznet.io/forum/11964"
markdown_url: "https://maker.wiznet.io/forum/11964/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "jboavida"
created: "2016-10-12T21:26:55+09:00"
last_activity: "2017-05-04T08:39:10+09:00"
language: "en"
views: 655
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# AT Command Trigger Questions

## Question

Asked by jboavida on 2016-10-12 in Serial-to-Ethernet & ConfigTool.

Hi,

I have 3 questions please, :mrgreen:

1- When we disable the AT command trigger, means that we send the AT commands right away? Without the 2B2B2B before?
2- If we do use the trigger, what is the 500ms time? We must wait 500ms (after the 2B2B2B) before send a command the AT command?
3- Finally… The hardware trigger pin… As the same purpose of the Command trigger, but pulling the pin low ?

Thanks in advance.

Joaquim

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Source: https://maker.wiznet.io/forum/11964