{"id":383,"date":"2019-02-22T17:59:04","date_gmt":"2019-02-22T08:59:04","guid":{"rendered":"https:\/\/ahnbk.com\/?p=383"},"modified":"2019-02-22T17:59:48","modified_gmt":"2019-02-22T08:59:48","slug":"scratch-3-0-%ec%8a%a4%ed%81%ac%eb%9e%98%ec%b9%98-%eb%a7%81%ed%81%ac-%ec%84%a4%ec%b9%98-%eb%b0%8f-%ec%82%ac%ec%9a%a9","status":"publish","type":"post","link":"https:\/\/ahnbk.com\/?p=383","title":{"rendered":"Scratch 3.0 \uc2a4\ud06c\ub798\uce58 \ub9c1\ud06c \uc124\uce58 \ubc0f \uc0ac\uc6a9"},"content":{"rendered":"\n<p>Scratch 3.0\uc5d0\uc11c \uc678\ubd80 \uae30\uae30 \ubc0f \uc11c\ube44\uc2a4\ub97c \uc774\uc6a9\ud558\uae30 \uc704\ud574\uc120 Scratch Link\ub97c \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4. \ubb3c\ub860 \ud655\uc7a5 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uc9c1\uc811 \ud558\ub4dc\uc6e8\uc5b4\uc5d0 \uc811\uc18d\ud558\uac8c \ud574\ub3c4 \ub418\uc9c0\ub9cc, Scratch \uac1c\ubc1c\uc790\ub4e4\uc740 \ub2e4\uc591\ud55c \ud558\ub4dc\uc6e8\uc5b4\ub97c \uac19\uc740 \ud504\ub85c\ud1a0\ucf5c\ub85c \uc5f0\uacb0\ud558\uae30 \uc704\ud574 Scratch Link\ub97c \uc678\ubd80\uc5d0 \uc2e4\ud589\ud558\uace0, \uc774\ub97c \ud1b5\ud574 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc5f0\uacb0\ud55c\ub2e4.<\/p>\n\n\n\n<p>Scratch\uc640 Scratch Link\ub294 websocket\uc744 \uc774\uc6a9\ud558\uc5ec \ud1b5\uc2e0\ud55c\ub2e4. \ud328\ud0b7 \ub0b4\uc6a9\uc740 \uae4c\ubcf4\uba74 json\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\ub2e4. Scratch Link\ub294 \uc2dc\ub9ac\uc5bc\ud1b5\uc2e0 (\ube14\ub8e8\ud22c\uc2a4 \uc2dc\ub9ac\uc5bc \ud3ec\ud568), Bluetooth LE\ub97c \uc774\uc6a9\ud574 \uc678\ubd80 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc5f0\uacb0\ud55c\ub2e4. Linux, macOS\uc758 \uacbd\uc6b0 \uc704 \uae30\ub2a5\uc744 \ubaa8\ub450 \uc9c0\uc6d0\ud558\ub098, \uc708\ub3c4\uc6b0\uc758 \uacbd\uc6b0 10\ubc84\uc804\uc5d0\uc11c\ub9cc Bluetooth LE\ub97c \uc9c0\uc6d0\ud55c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"384\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=384\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?fit=1288%2C100&amp;ssl=1\" data-orig-size=\"1288,100\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?fit=1000%2C78&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?fit=525%2C41&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?resize=525%2C40&#038;ssl=1\" alt=\"\" class=\"wp-image-384\" width=\"525\" height=\"40\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?w=1288&amp;ssl=1 1288w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?resize=1000%2C78&amp;ssl=1 1000w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?resize=768%2C60&amp;ssl=1 768w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-8.png?w=1050&amp;ssl=1 1050w\" sizes=\"(max-width: 525px) 100vw, 525px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>Scratch Link\ub294 \uc544\uc9c1 \uc18c\uc2a4\uac00 \uacf5\uac1c\ub418\uc5b4 \uc788\uc9c0 \uc54a\uc73c\ubbc0\ub85c, \uc124\uce58\ud558\uae30 \uc704\ud574\uc120 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \uc774\uc6a9\ud55c\ub2e4. <\/p>\n\n\n\n<ul><li>macOS &#8211; <a rel=\"noreferrer noopener\" aria-label=\"https:\/\/downloads.scratch.mit.edu\/link\/mac.zip (opens in a new tab)\" href=\"https:\/\/downloads.scratch.mit.edu\/link\/mac.zip\" target=\"_blank\">https:\/\/downloads.scratch.mit.edu\/link\/mac.zip<\/a><\/li><li>windows 10 &#8211; <a href=\"https:\/\/downloads.scratch.mit.edu\/link\/windows.zip\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"https:\/\/downloads.scratch.mit.edu\/link\/windows.zip (opens in a new tab)\">https:\/\/downloads.scratch.mit.edu\/link\/windows.zip<\/a><\/li><\/ul>\n\n\n\n<p>\uc704 \ub9c1\ud06c\uc5d0\uc11c \ud30c\uc77c\uc744 \ub2e4\uc6b4\ub85c\ub4dc \ud55c \ub2e4\uc74c \uc124\uce58\ud55c\ub2e4. <\/p>\n\n\n\n<p>Scratch Link\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc120 hosts \ud30c\uc77c\uc758 \uc218\uc815\uc774 \ud544\uc694\ud558\ub2e4. \uc774\uc720\ub294 \ubaa8\ub974\uaca0\uc9c0\ub9cc Scratch Link\uc758 \uc11c\ubc84 \uc8fc\uc18c\uac00 Local\uc5d0\uc11c \uc2e4\ud589\ub418\uace0 \uc788\uc74c\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 device-manager.scratch.mit.edu\ub85c \ub418\uc5b4 \uc788\uae30 \ub54c\ubb38\uc5d0 \uadf8\ub0e5 \uc0ac\uc6a9\ud558\uac8c \ub418\uba74 \uc5f0\uacb0\uc774 \ub418\uc9c0 \uc54a\ub294\ub2e4. \ub530\ub77c\uc11c \uc704 \uc8fc\uc18c\ub97c Local\ub85c \uc811\uc18d\ud558\ub3c4\ub85d \ub9cc\ub4e4\uc5b4\uc57c \ub418\ub294\ub370, \uc774\ub97c \uc704\ud574 hosts \ud30c\uc77c\uc744 \uc218\uc815\ud55c\ub2e4.<\/p>\n\n\n\n<p><strong>macOS<\/strong><\/p>\n\n\n\n<p>macOS\uc5d0\uc11c hosts \uc218\uc815\uc740 \uc544\uc8fc \uac04\ub2e8\ud558\ub2e4. \ud130\ubbf8\ub110\uc744 \uc5f4\uace0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ sudo vi \/etc\/hosts<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>##\n# Host Database\n#\n# localhost is used to configure the loopback interface\n# when the system is booting.  Do not change this entry.\n##\n127.0.0.1       localhost\n127.0.0.1       device-manager.scratch.mit.edu\n255.255.255.255 broadcasthost\n::1             localhost<\/code><\/pre>\n\n\n\n<p>\uc2dc\uc2a4\ud15c \ud30c\uc77c\uc774\uae30 \ub54c\ubb38\uc5d0, \uacc4\uc815 \uc554\ud638\uac00 \ud544\uc694\ud558\ub2e4. \uc704\uc640 \uac19\uc774 \uc218\uc815\ud558\uace0 \uc800\uc7a5\ud55c\ub2e4. \uadf8 \ub2e4\uc74c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ ping device-manager.scratch.mit.edu\nPING device-manager.scratch.mit.edu (127.0.0.1): 56 data bytes\n64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.045 ms\n64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.053 ms\n64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.107 ms\n...<\/code><\/pre>\n\n\n\n<p>\uc640 \uac19\uc774 \ub098\uc624\uba74 \uc131\uacf5.<\/p>\n\n\n\n<p><strong>Windows 10<\/strong><\/p>\n\n\n\n<p>\uc708\ub3c4\uc6b0\uc758 hosts \ud30c\uc77c\uc740 C:\\Windows\\System32\\drivers\\etc\uc5d0 \uc704\uce58\ud55c\ub2e4. \ud558\uc9c0\ub9cc \uc9c1\uc811 \uc218\uc815\ud558\ub294 \uac83\uc744 \ub9c9\uc544\ub1a8\uae30 \ub54c\ubb38\uc5d0, \ud0d0\uc0c9\uae30\ub85c \uc704 \uc704\uce58\ub85c \uc774\ub3d9\ud55c \ud6c4 hosts \ud30c\uc77c\uc744 \uc784\uc758\uc758 \uc704\uce58\ub85c \ubcf5\uc0ac\ud55c\ub2e4.<\/p>\n\n\n\n<p>Notepad\ub098 \uae30\ud0c0 \ud3b8\uc9d1\uae30\ub97c \uc774\uc6a9\ud558\uc5ec, \ub2e4\uc74c\uacfc \uac19\uc774 \uc218\uc815\ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># For example:\n#\n#      102.54.94.97     rhino.acme.com          # source server\n#       38.25.63.10     x.acme.com              # x client host\n\n127.0.0.1\tdevice-manager.scratch.mit.edu<\/code><\/pre>\n\n\n\n<p>\uadf8\ub7f0 \ub2e4\uc74c \uc218\uc815\ub41c \ud30c\uc77c\uc744 C:\\Windows\\System32\\drivers\\etc\uc5d0 \ubcf5\uc0ac\ud574 \ub123\ub294\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"385\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=385\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-9.png?fit=928%2C596&amp;ssl=1\" data-orig-size=\"928,596\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-9.png?fit=928%2C596&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-9.png?fit=525%2C337&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-9.png?resize=376%2C241&#038;ssl=1\" alt=\"\" class=\"wp-image-385\" width=\"376\" height=\"241\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-9.png?w=928&amp;ssl=1 928w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-9.png?resize=768%2C493&amp;ssl=1 768w\" sizes=\"(max-width: 376px) 100vw, 376px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\uc640 \uac19\uc774 \ub098\uc624\uace0, \ub36e\uc5b4 \uc50c\uc6b0\uaca0\ub2e4\uace0 \uc120\ud0dd\ud558\uba74, <\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"386\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=386\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-10.png?fit=926%2C462&amp;ssl=1\" data-orig-size=\"926,462\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-10.png?fit=926%2C462&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-10.png?fit=525%2C262&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-10.png?resize=378%2C189&#038;ssl=1\" alt=\"\" class=\"wp-image-386\" width=\"378\" height=\"189\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-10.png?w=926&amp;ssl=1 926w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-10.png?resize=768%2C383&amp;ssl=1 768w\" sizes=\"(max-width: 378px) 100vw, 378px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\uc640 \uac19\uc774 \ub098\uc624\ub294\ub370, Continue\ub97c \ub20c\ub7ec \uc9c4\ud589\ud55c\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \ucf54\ub9e8\ub4dc \ucc3d\uc744 \uc5f4\uace0 ping\uc744 \ud14c\uc2a4\ud2b8\ud574\ubcf4\uba74,<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"387\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=387\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?fit=1178%2C348&amp;ssl=1\" data-orig-size=\"1178,348\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?fit=1000%2C295&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?fit=525%2C155&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?resize=525%2C155&#038;ssl=1\" alt=\"\" class=\"wp-image-387\" width=\"525\" height=\"155\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?w=1178&amp;ssl=1 1178w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?resize=1000%2C295&amp;ssl=1 1000w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?resize=768%2C227&amp;ssl=1 768w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-11.png?w=1050&amp;ssl=1 1050w\" sizes=\"(max-width: 525px) 100vw, 525px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\uc640 \uac19\uc774 \ub098\uc624\uba74 \uc131\uacf5. <\/p>\n\n\n\n<p>\uc124\uce58\ub41c Scratch Link\ub97c \uc2e4\ud589\ud558\uba74 websocket \uc11c\ubc84\uac00 \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc2e4\ud589\ub41c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"388\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=388\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-12.png?fit=550%2C50&amp;ssl=1\" data-orig-size=\"550,50\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-12.png?fit=550%2C50&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-12.png?fit=525%2C48&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"525\" height=\"48\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-12.png?resize=525%2C48&#038;ssl=1\" alt=\"\" class=\"wp-image-388\" data-recalc-dims=\"1\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"389\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=389\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-13.png?fit=584%2C126&amp;ssl=1\" data-orig-size=\"584,126\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-13.png?fit=584%2C126&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-13.png?fit=525%2C113&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"525\" height=\"113\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/02\/image-13.png?resize=525%2C113&#038;ssl=1\" alt=\"\" class=\"wp-image-389\" data-recalc-dims=\"1\"\/><\/figure>\n\n\n\n<p>\uc774\uc81c \uc0ac\uc6a9\ud560 \uc900\ube44 \ub05d.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scratch 3.0\uc5d0\uc11c \uc678\ubd80 \uae30\uae30 \ubc0f \uc11c\ube44\uc2a4\ub97c \uc774\uc6a9\ud558\uae30 \uc704\ud574\uc120 Scratch Link\ub97c \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4. \ubb3c\ub860 \ud655\uc7a5 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uc9c1\uc811 \ud558\ub4dc\uc6e8\uc5b4\uc5d0 \uc811\uc18d\ud558\uac8c \ud574\ub3c4 \ub418\uc9c0\ub9cc, Scratch \uac1c\ubc1c\uc790\ub4e4\uc740 \ub2e4\uc591\ud55c \ud558\ub4dc\uc6e8\uc5b4\ub97c \uac19\uc740 \ud504\ub85c\ud1a0\ucf5c\ub85c \uc5f0\uacb0\ud558\uae30 \uc704\ud574 Scratch Link\ub97c \uc678\ubd80\uc5d0 \uc2e4\ud589\ud558\uace0, \uc774\ub97c \ud1b5\ud574 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc5f0\uacb0\ud55c\ub2e4. Scratch\uc640 Scratch Link\ub294 websocket\uc744 \uc774\uc6a9\ud558\uc5ec \ud1b5\uc2e0\ud55c\ub2e4. \ud328\ud0b7 \ub0b4\uc6a9\uc740 \uae4c\ubcf4\uba74 json\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\ub2e4. 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