{"id":9648,"date":"2025-01-21T14:09:14","date_gmt":"2025-01-21T05:09:14","guid":{"rendered":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=9648"},"modified":"2025-01-22T18:22:29","modified_gmt":"2025-01-22T09:22:29","slug":"usb-to-lora-%ec%84%a4%ec%a0%95%eb%b2%95","status":"publish","type":"post","link":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=9648","title":{"rendered":"USB to LoRa &#8211; \uc124\uc815\ubc95"},"content":{"rendered":"<h1>USB to LoRa &#8211; \uc124\uc815\ubc95<\/h1>\n<h2>\uc2dc\ub9ac\uc5bc \uc124\uc815<\/h2>\n<p>Baud rate: 9600bps (\uae30\ubcf8\uac12)<br \/>\nData bits: 8<br \/>\nStop bits: 1<br \/>\nParity: None<br \/>\nFlow control: None<\/p>\n<h2>\uae30\ubcf8 \uc124\uc815 \ud655\uc778<\/h2>\n<pre><code class=\"language-bash\">\/\/ \uae30\ubcf8 \uc124\uc815 \ud655\uc778\nAT+MODE=TEST  \/\/ \ud14c\uc2a4\ud2b8 \ubaa8\ub4dc \uc9c4\uc785\nAT+PARAMETER?  \/\/ \ud604\uc7ac \ud30c\ub77c\ubbf8\ud130 \ud655\uc778\n\n\/\/ \ud544\uc218 \ud30c\ub77c\ubbf8\ud130 \uc124\uc815\nAT+PARAMETER=12,7,1,4  \/\/ SF=12, BW=125kHz, CR=4\/5, Preamble=4\nAT+ADDRESS=1  \/\/ \uc7a5\uce58 1 \uc8fc\uc18c \uc124\uc815\nAT+NETWORK=0  \/\/ \ub124\ud2b8\uc6cc\ud06c ID \uc124\uc815\nAT+CRFOP=15  \/\/ \uc1a1\uc2e0 \ucd9c\ub825 \uc124\uc815 (15dBm)\n\n\/\/ \ub450 \ubc88\uc9f8 \uc7a5\uce58\ub3c4 \ub3d9\uc77c\ud558\uac8c \uc124\uc815 (\uc8fc\uc18c\ub9cc \ub2e4\ub974\uac8c)\nAT+ADDRESS=2  \/\/ \uc7a5\uce58 2 \uc8fc\uc18c \uc124\uc815<\/code><\/pre>\n<pre><code class=\"language-bash\">AT+SEND=2,5,HELLO  \/\/ \uc7a5\uce58 2\ub85c &quot;HELLO&quot; \uba54\uc2dc\uc9c0 \uc804\uc1a1<\/code><\/pre>\n<pre><code class=\"language-bash\">AT+RECEIVE?  \/\/ \uc218\uc2e0 \ub370\uc774\ud130 \ud655\uc778<\/code><\/pre>\n<h2>AT+PARAMETER=12,7,1,4<\/h2>\n<p>AT+PARAMETER=SF,BW,CR,PPL<br \/>\n\uac01 \uac12\uc758 \uc758\ubbf8:<\/p>\n<ol>\n<li>\n<p>SF (Spreading Factor) = 12<\/p>\n<ul>\n<li>\ubc94\uc704: 7~12<\/li>\n<li>\uac12\uc774 \ud074\uc218\ub85d \ud1b5\uc2e0 \uac70\ub9ac\ub294 \uc99d\uac00\ud558\uc9c0\ub9cc \ub370\uc774\ud130 \uc804\uc1a1 \uc18d\ub3c4\ub294 \uac10\uc18c<\/li>\n<li>SF12: \uac00\uc7a5 \uae34 \ud1b5\uc2e0\uac70\ub9ac, \uac00\uc7a5 \ub290\ub9b0 \uc804\uc1a1\uc18d\ub3c4<\/li>\n<li>SF7: \uac00\uc7a5 \uc9e7\uc740 \ud1b5\uc2e0\uac70\ub9ac, \uac00\uc7a5 \ube60\ub978 \uc804\uc1a1\uc18d\ub3c4<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>BW (Bandwidth) = 7<\/p>\n<ul>\n<li>\uac12\uc758 \uc758\ubbf8:<\/li>\n<li>7 = 125kHz<\/li>\n<li>8 = 250kHz<\/li>\n<li>9 = 500kHz<\/li>\n<li>\ub300\uc5ed\ud3ed\uc774 \ud074\uc218\ub85d \ub370\uc774\ud130 \uc804\uc1a1 \uc18d\ub3c4\ub294 \uc99d\uac00\ud558\uc9c0\ub9cc \ub178\uc774\uc988\uc5d0 \ucde8\uc57d<\/li>\n<li>125kHz\ub294 \uac00\uc7a5 \uc548\uc815\uc801\uc778 \ud1b5\uc2e0\uc744 \uc81c\uacf5<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>CR (Coding Rate) = 1<\/p>\n<ul>\n<li>\ubc94\uc704: 1~4<\/li>\n<li>\uac12\uc758 \uc758\ubbf8:<\/li>\n<li>1 = 4\/5<\/li>\n<li>2 = 4\/6<\/li>\n<li>3 = 4\/7<\/li>\n<li>4 = 4\/8<\/li>\n<li>\uc5d0\ub7ec \uac80\ucd9c\uacfc \uc815\uc815\uc744 \uc704\ud55c \ucf54\ub529 \ube44\uc728<\/li>\n<li>\uac12\uc774 \ub192\uc744\uc218\ub85d \uc5d0\ub7ec \uc815\uc815 \ub2a5\ub825\uc740 \uc99d\uac00\ud558\uc9c0\ub9cc \uc804\uc1a1\ud574\uc57c \ud560 \ub370\uc774\ud130\ub7c9 \uc99d\uac00<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>PPL (Preamble Length) = 4<\/p>\n<ul>\n<li>\ud504\ub9ac\uc570\ube14 \uae38\uc774 \uc124\uc815<\/li>\n<li>\ubc94\uc704: 4~15<\/li>\n<li>\uc218\uc2e0\uae30\uac00 \ub370\uc774\ud130 \ud328\ud0b7\uc758 \uc2dc\uc791\uc744 \uc778\uc2dd\ud558\uae30 \uc704\ud55c \uc2e0\ud638<\/li>\n<li>\uac12\uc774 \ud074\uc218\ub85d \uc218\uc2e0 \uc548\uc815\uc131\uc740 \uc99d\uac00\ud558\uc9c0\ub9cc \uc804\ub825 \uc18c\ube44\uc640 \uc804\uc1a1 \uc2dc\uac04 \uc99d\uac00<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9 \uad8c\uc7a5\uac12:<\/p>\n<ul>\n<li>\uc7a5\uac70\ub9ac \uc548\uc815\uc131 \uc911\uc2dc: SF=12, BW=7(125kHz), CR=1(4\/5)<br \/>\nMAX PAYLOAD : 51 bytes<\/li>\n<li>\uc911\uac70\ub9ac \uade0\ud615: SF=10, BW=7(125kHz), CR=1(4\/5)<\/li>\n<li>\ub2e8\uac70\ub9ac \uace0\uc18d: SF=7, BW=8(250kHz), CR=1(4\/5)<\/li>\n<\/ul>\n<p>\uc774 \uc124\uc815\uc740 \ud1b5\uc2e0 \ud658\uacbd\uacfc \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub530\ub77c \uc870\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\ucc44\ub110 \ubc88\ud638<\/th>\n<th>\uc8fc\ud30c\uc218<\/th>\n<th>\ucc44\ub110 \ubc88\ud638<\/th>\n<th>\uc8fc\ud30c\uc218<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>917.3MHz<\/td>\n<td>11<\/td>\n<td>921.5MHz<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>917.9MHz<\/td>\n<td>12<\/td>\n<td>921.7MHz<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>918.5MHz<\/td>\n<td>13<\/td>\n<td>921.9MHz<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>919.1MHz<\/td>\n<td>14<\/td>\n<td>922.1MHz<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>919.7MHz<\/td>\n<td>15<\/td>\n<td>922.3MHz<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>920.3MHz<\/td>\n<td>16<\/td>\n<td>922.5MHz<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>920.7MHz<\/td>\n<td>17<\/td>\n<td>922.7MHz<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>920.9MHz<\/td>\n<td>18<\/td>\n<td>922.9MHz<\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>921.1MHz<\/td>\n<td>19<\/td>\n<td>923.1MHz<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>921.3MHz<\/td>\n<td>20<\/td>\n<td>923.3MHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>USB to LoRa &#8211; \uc124\uc815\ubc95 \uc2dc\ub9ac\uc5bc \uc124\uc815 Baud rate: 9600bps (\uae30\ubcf8\uac12) Data bits: 8 Stop bits: 1 Parity: None Flow control: None \uae30\ubcf8 \uc124\uc815 \ud655\uc778 \/\/ \uae30\ubcf8 \uc124\uc815 \ud655\uc778 AT+MODE=TEST \/\/ \ud14c\uc2a4\ud2b8 \ubaa8\ub4dc \uc9c4\uc785 AT+PARAMETER? \/\/ \ud604\uc7ac \ud30c\ub77c\ubbf8\ud130 \ud655\uc778 \/\/ \ud544\uc218 \ud30c\ub77c\ubbf8\ud130 \uc124\uc815 AT+PARAMETER=12,7,1,4 \/\/ SF=12, BW=125kHz, CR=4\/5, Preamble=4 AT+ADDRESS=1 \/\/ \uc7a5\uce58 1 \uc8fc\uc18c \uc124\uc815\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=9648\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-9648","post","type-post","status-publish","format-standard","hentry","category-devops"],"_links":{"self":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/9648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9648"}],"version-history":[{"count":6,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/9648\/revisions"}],"predecessor-version":[{"id":9697,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/9648\/revisions\/9697"}],"wp:attachment":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}