https 서버와 통신하기

LTE CATM1 내장형 모뎀의 AT커맨드를 이용해서 https 서버와 통신하길 원하시는 

개발자분의 요구사항으로 테스트를 진행 했습니다. 

 

먼저 https 테스트에 괜찮은 서버를 StackOverFlow (https://stackoverflow.com/)에서 검색해 보았는데,

아래와 같은 httpbin.org가 괜찮다는 추천 의견이 있어서 해당 사이트를 서버로 선정 했습니다.

https://httpbin.org/

httpbin.org

CATM1 모뎀에 서버에서 제공하는 인증서를 설치해야 하는데 먼저 웹브라우저에서 아래와 같은 방법으로 인증서를 다운로드 받습니다. 

 

1. 자물쇠 모양 아이콘을 클릭 합니다. 

https://httpbin.org 웹사이트 화면

2. '이 사이트는 보안 연결(HTTPS)이 사용되었습니다.' 를 클릭 합니다. 

3. '인증서가 유효함'을 클릭 합니다.

4. '세부정보' 탭을 누르고 아래 '내보내기' 버튼을 클릭 합니다.

5. 원하는 위치로 이동해서 아래 저장 버튼을 누릅니다. 

6. 해당 파일을 TEXT 에디터로 가져와서 오픈 후 아래와 같이 명령어를 추가 합니다. (Notepad++ 사용)

Notepad++로 Drag & Drop 후 AT명령어 추가화면

7. 윈도우에서 작업시 공백문자 문제가 발생할 수 있으므로 아래와 같은 설정을 해주셔야 합니다. (Notepad++)

편집 --> 줄의 끝문자(EOL) 변환 --> Unix (LF) 클릭

인증서 내용과 AT커맨드 명령을 함께 편집한 내용은 LTE CATM1 내장형 모뎀에 인증서 설치할 때 사용합니다.  

 

LTE CATM1 내장형 모뎀 AT커맨드는 아래와 같은 순서로 진행 했습니다. QCOM 프로그램을 사용해서 진행 했습니다. 

QCOM 다운로드 ( https://github.com/codezoo-ltd/CodeZoo_CATM1_Arduino/tree/master/Tool )

HTTPS AT커맨드 테스트 화면 (QCOM)

/* 1. 망 연결 체크(기지국에 연결되어 있어야 합니다!) */

AT

OK

​

AT+CEREG?

+CEREG: 0,5

OK

​

AT+COPS?

+COPS: 0,0,"DATA ONLY",7

OK

​

/* 2. httpbin.org 테스트 서버 인증서 CATM1 모뎀에 설치 */

AT%CERTCMD="WRITE","httpbin.org.crt",0,"-----BEGIN CERTIFICATE-----

MIIF3TCCBMWgAwIBAgIQBe4XpUyT/vhaGA6vdWMC+jANBgkqhkiG9w0BAQsFADBG

MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRUwEwYDVQQLEwxTZXJ2ZXIg

Q0EgMUIxDzANBgNVBAMTBkFtYXpvbjAeFw0yMjEwMjEwMDAwMDBaFw0yMzExMTky

MzU5NTlaMBYxFDASBgNVBAMTC2h0dHBiaW4ub3JnMIIBIjANBgkqhkiG9w0BAQEF

AAOCAQ8AMIIBCgKCAQEAyoiVyRRffvWcc/kQJj4htRPZeafPYAZzCgd9tQfQmtCJ

XWDAynL3slPfhAAuO0vWxyNHTTELbCHxD43nPgST7HUwG/ZjsrY03+M4IaEiBvN5

3OsnJ5UekmH2G04HTZdsApoc9OSb+4aBGlkISsNxn8SCRF3a8kn95tD27IToBozN

XosKbyzKli/9g0rqmeQHqGHtLuuEsMZcWn9dXbKuMB7n1c1e4XiBNgowQZGNWCU0

9fH56X/fN8QZ+OeP/1Fy5maOqjMReAAexkboS6yLZwOHzCPBGoxsay40cdI3pjz8

UT8squMowlmZvhLNkOI1GkxucUXhFaaZoqmLrgh9pwIDAQABo4IC9TCCAvEwHwYD

VR0jBBgwFoAUWaRmBlKge5WSPKOUByeWdFv5PdAwHQYDVR0OBBYEFPJiPqhWrciC

zNqbNPqmhJPYlZ8bMCUGA1UdEQQeMByCC2h0dHBiaW4ub3Jngg0qLmh0dHBiaW4u

b3JnMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUH

AwIwPQYDVR0fBDYwNDAyoDCgLoYsaHR0cDovL2NybC5zY2ExYi5hbWF6b250cnVz

dC5jb20vc2NhMWItMS5jcmwwEwYDVR0gBAwwCjAIBgZngQwBAgEwdQYIKwYBBQUH

AQEEaTBnMC0GCCsGAQUFBzABhiFodHRwOi8vb2NzcC5zY2ExYi5hbWF6b250cnVz

dC5jb20wNgYIKwYBBQUHMAKGKmh0dHA6Ly9jcnQuc2NhMWIuYW1hem9udHJ1c3Qu

Y29tL3NjYTFiLmNydDAMBgNVHRMBAf8EAjAAMIIBfgYKKwYBBAHWeQIEAgSCAW4E

ggFqAWgAdgDoPtDaPvUGNTLnVyi8iWvJA9PL0RFr7Otp4Xd9bQa9bgAAAYP4H6VF

AAAEAwBHMEUCIEq2V8hRuy9prk8YM3F75d3yWlFWxjtRLGZ8LalH7eEFAiEAg568

zaooPnyU//j8IbESNUX06/vSfxMjNHbkQp8WB04AdwCzc3cH4YRQ+GOG1gWp3BEJ

SnktsWcMC4fc8AMOeTalmgAAAYP4H6YYAAAEAwBIMEYCIQDcqYOM4QgB6WEuSM6i

7Z9+AGnyYPlOCrHsn0RYesbUjgIhAJBM7+56ckkL3Po1XqvmjZSzy0Z/0CM5toc2

XW0vQ23VAHUAtz77JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkAAAGD+B+l

egAABAMARjBEAiBuuudZIYUden04N/t88T53d4P3icmfPDg0Cb1LfVbSRAIgf2vT

Vj51gdKK3tNPncgtPHpdmKhUGpr0sLfqOUXiAo4wDQYJKoZIhvcNAQELBQADggEB

AJ1Ykh6Qblt65jVHdcUlV5aNW45gUAtL1xhv8aLjy97qfZ89sa6j/+O9Kgke3kTT

xUZ9/fq/c4pEgK5bI1BYQ/RseA/Vief5KCp+LXKiSYSNvQmYhEMcm0ljpQIcxaEJ

46z3TtLz+ylUGQZYr0nPvRKg4TNa37bY/+nlzDXN2zWvNoe7xKlD3r3a27E5rDs2

1cjtEqsqDsWjGTG0cMYErkWDm4kSb3wVJmaUemOO7LBWTY1ZmUK2pcAb+Cw1Siy8

Rja9Q6M+Yp+aGU7waW0Xte49aNieJ4L8C6IQfYoZRH9Q29CZ0hzp/lKtjmjXf11y

X8WDMt3yQCm5MfBlIJLOy+E=

-----END CERTIFICATE-----"

OK

 

AT%CERTCFG="ADD",3,"httpbin.org.crt",,,  //TLS slot 3 save

​OK

 

/* 3. HTTPS 접속 서버 설정 */

AT%HTTPCFG="NODES",3,"https://httpbin.org/"

OK

​

/* 4. HTTP Allow all events */

AT%HTTPEV="ALL",1

OK

​

/* 5. TLS  Setup, 2: authenticate server side only, 3: TLS save slot */

AT%HTTPCFG="TLS",3,2,3

OK

​

/* 6. Trigger HTTPS GET */

AT%HTTPCMD="GET",3

OK

​

// HTTS Server Response (unsolicited response received), 

// 받을 데이터는 Header 239, 컨텐츠 9593, 총 9832를 가져와야 함.

%HTTPEVU:"GETRCV",3,0,239,9593 

​

/* 7. HTTPS GET Data Read (in modem buffer) */

// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력

AT%HTTPREAD=3,3000

%HTTPREAD: 3000,8191

 

HTTP/1.1 200 OK

Date: Tue, 06 Dec 2022 08:21:48 GMT

Content-Type: text/html; charset=utf-8

Content-Length: 9593

Connection: keep-alive

Server: gunicorn/19.9.0

Access-Control-Allow-Origin: *

Access-Control-Allow-Credentials: true

 

<!DOCTYPE html>

<html lang="en">

 

<head>

<meta charset="UTF-8">

<title>httpbin.org</title>

 

rel="stylesheet">

<link rel="stylesheet" type="text/css" href="/flasgger_static/swagger-ui.css">

<link rel="icon" type="image/png" href="/static/favicon.ico" sizes="64x64 32x32 16x16" />

<style>

html {

box-sizing: border-box;

overflow: -moz-scrollbars-vertical;

overflow-y: scroll;

}

 

*,

*:before,

*:after {

box-sizing: inherit;

}

 

body {

margin: 0;

background: #fafafa;

}

</style>

</head>

 

<body>

<a href="https://github.com/requests/httpbin" class="github-corner" aria-label="View source on Github">

<svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;"

aria-hidden="true">

<path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>

<path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2"

fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path>

<path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z"

fill="currentColor" class="octo-body"></path>

</svg>

</a>

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="position:absolute;width:0;height:0">

<defs>

<symbol viewBox="0 0 20 20" id="unlocked">

<path d="M15.8 8H14V5.6C14 2.703 12.665 1 10 1 7.334 1 6 2.703 6 5.6V6h2v-.801C8 3.754 8.797 3 10 3c1.203 0 2 .754 2 2.199V8H4c-.553 0-1 .646-1 1.199V17c0 .549.428 1.139.951 1.307l1.197.387C5.672 18.861 6.55 19 7.1 19h5.8c.549 0 1.428-.139 1.951-.307l1.196-.387c.524-.167.953-.757.953-1.306V9.199C17 8.646 16.352 8 15.8 8z"></path>

</symbol>

 

<symbol viewBox="0 0 20 20" id="locked">

<path d="M15.8 8H14V5.6C14 2.7

OK

 

// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력

AT%HTTPREAD=3,3000

%HTTPREAD: 3000,6832

 

03 12.665 1 10 1 7.334 1 6 2.703 6 5.6V8H4c-.553 0-1 .646-1 1.199V17c0 .549.428 1.139.951 1.307l1.197.387C5.672 18.861 6.55 19 7.1 19h5.8c.549 0 1.428-.139 1.951-.307l1.196-.387c.524-.167.953-.757.953-1.306V9.199C17 8.646 16.352 8 15.8 8zM12 8H8V5.199C8 3.754 8.797 3 10 3c1.203 0 2 .754 2 2.199V8z"

/>

</symbol>

 

<symbol viewBox="0 0 20 20" id="close">

<path d="M14.348 14.849c-.469.469-1.229.469-1.697 0L10 11.819l-2.651 3.029c-.469.469-1.229.469-1.697 0-.469-.469-.469-1.229 0-1.697l2.758-3.15-2.759-3.152c-.469-.469-.469-1.228 0-1.697.469-.469 1.228-.469 1.697 0L10 8.183l2.651-3.031c.469-.469 1.228-.469 1.697 0 .469.469.469 1.229 0 1.697l-2.758 3.152 2.758 3.15c.469.469.469 1.229 0 1.698z"

/>

</symbol>

 

<symbol viewBox="0 0 20 20" id="large-arrow">

<path d="M13.25 10L6.109 2.58c-.268-.27-.268-.707 0-.979.268-.27.701-.27.969 0l7.83 7.908c.268.271.268.709 0 .979l-7.83 7.908c-.268.271-.701.27-.969 0-.268-.269-.268-.707 0-.979L13.25 10z"

/>

</symbol>

 

<symbol viewBox="0 0 20 20" id="large-arrow-down">

<path d="M17.418 6.109c.272-.268.709-.268.979 0s.271.701 0 .969l-7.908 7.83c-.27.268-.707.268-.979 0l-7.908-7.83c-.27-.268-.27-.701 0-.969.271-.268.709-.268.979 0L10 13.25l7.418-7.141z"

/>

</symbol>

 

 

<symbol viewBox="0 0 24 24" id="jump-to">

<path d="M19 7v4H5.83l3.58-3.59L8 6l-6 6 6 6 1.41-1.41L5.83 13H21V7z" />

</symbol>

 

<symbol viewBox="0 0 24 24" id="expand">

<path d="M10 18h4v-2h-4v2zM3 6v2h18V6H3zm3 7h12v-2H6v2z" />

</symbol>

 

</defs>

</svg>

 

 

<div id="swagger-ui">

<div data-reactroot="" class="swagger-ui">

<div>

<div class="information-container wrapper">

<section class="block col-12">

<div class="info">

<hgroup class="main">

<h2 class="title">httpbin.org

<small>

<pre class="version">0.9.2</pre>

</small>

</h2>

<pre class="base-url">[ Base URL: httpbin.org/ ]</pre>

</hgroup>

<div class="description">

<div class="markdown">

<p>A simple HTTP Request & Response Service.

<br>

<br>

<b>Run locally: </b>

<code>$ docker run -p 80:80 kennethreitz/httpbin</code>

</p>

</div>

</div>

OK

 

// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력

AT%HTTPREAD=3,3000

%HTTPREAD: 3000,3832

 

<div>

<div>

<a href="https://kennethreitz.org" target="_blank">the developer - Website</a>

</div>

<a href="mailto:me@kennethreitz.org">Send email to the developer</a>

</div>

</div>

<!-- ADDS THE LOADER SPINNER -->

<div class="loading-container">

<div class="loading"></div>

</div>

 

</section>

</div>

</div>

</div>

</div>

 

 

<div class='swagger-ui'>

<div class="wrapper">

<section class="clear">

<span style="float: right;">

[Powered by

<a target="_blank" href="https://github.com/rochacbruno/flasgger">Flasgger]

<br>

</span>

</section>

</div>

</div>

 

 

 

<script src="/flasgger_static/swagger-ui-bundle.js"> </script>

<script src="/flasgger_static/swagger-ui-standalone-preset.js"> </script>

<script src='/flasgger_static/lib/jquery.min.js' type='text/javascript'></script>

<script>

 

window.onload = function () {

 

 

fetch("/spec.json")

.then(function (response) {

response.json()

.then(function (json) {

var current_protocol = window.location.protocol.slice(0, -1);

if (json.schemes[0] != current_protocol) {

// Switches scheme to the current in use

var other_protocol = json.schemes[0];

json.schemes[0] = current_protocol;

json.schemes[1] = other_protocol;

 

}

json.host = window.location.host; // sets the current host

 

const ui = SwaggerUIBundle({

spec: json,

validatorUrl: null,

dom_id: '#swagger-ui',

deepLinking: true,

jsonEditor: true,

docExpansion: "none",

apisSorter: "alpha",

//operationsSorter: "alpha",

presets: [

SwaggerUIBundle.presets.apis,

// yay ES6 modules ?? Array.isArray(SwaggerUIStandalonePreset) ? SwaggerUIStandalonePreset : SwaggerUIStandalonePreset.default

],

plugins: [

SwaggerUIBundle.plug

OK

 

// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력

AT%HTTPREAD=3,3000

%HTTPREAD: 832,832

 

ins.DownloadUrl

],

 

// layout: "StandaloneLayout" // uncomment to enable the green top header

})

 

window.ui = ui

 

// uncomment to rename the top brand if layout is enabled

// $(".topbar-wrapper .link span").replaceWith("<span>httpbin</span>");

})

})

}

</script> <div class='swagger-ui'>

<div class="wrapper">

<section class="block col-12 block-desktop col-12-desktop">

<div>

 

<h2>Other Utilities</h2>

 

<ul>

<li>

<a href="/forms/post">HTML form</a> that posts to /post /forms/post</li>

</ul>

 

<br />

<br />

</div>

</section>

</div>

</div>

</body>

 

</html>

OK

 

 

Murata Type1SC 모듈 구매, 자료 관련 문의
(주)아성코리아
전지만 이사 010-5418-8812 mlcc@asung.com
박상인 수석 010-6556-5405 sipark@asung.com

LTE-CATM1 내장형 모뎀 대량 구매 상담, 외주 개발, 협업 문의
(주)코드주
장병남 대표 010-8965-1323 rooney.jang@codezoo.co.kr

 

https://www.devicemart.co.kr/goods/view?no=14077527 

LTE-CatM1 내장형 모뎀 / 사물인터넷 통신모듈

https://smartstore.naver.com/codezoo/products/7153689192

Vodafone Global IoT SIM Card : codezoo