{"id":790,"date":"2019-05-14T17:08:39","date_gmt":"2019-05-14T08:08:39","guid":{"rendered":"https:\/\/ahnbk.com\/?p=790"},"modified":"2020-04-18T10:22:09","modified_gmt":"2020-04-18T01:22:09","slug":"scratch-3-0-scratch-link%eb%a5%bc-%ec%88%98%ec%a0%95%ed%95%b4%eb%b3%b4%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/ahnbk.com\/?p=790","title":{"rendered":"Scratch 3.0 Scratch Link\ub97c \uc218\uc815\ud574\ubcf4\uae30"},"content":{"rendered":"\n<p>Scratch 3.0\uc740 \uc678\ubd80\uae30\uae30\uc640 \uc5f0\ub3d9\ud558\uae30 \uc704\ud574\uc11c Scratch Link \uc571\uc744 \uc774\uc6a9\ud574\uc57c \ud55c\ub2e4. (Scratch \ub0b4\ubd80\uc5d0 \uad6c\ud604\ud560 \uc218\ub3c4 \uc788\uc744 \uac83 \uac19\uc740\ub370, \uc774\ub807\uac8c \ub418\uba74 \ub2e4\ub978 \uc6b4\uc601\uccb4\uc81c\uc5d0\uc11c \ud638\ud658\uc774 \uc548\ub420\ud14c\ub2c8 \uc544\ub9c8\ub3c4 \uc774\ub807\uac8c \ub9cc\ub4e4\uc5b4 \ub193\uc740\ub4ef \ud558\ub2e4) \ub0b4\ubd80\ub97c \ub4e4\uc5ec\ub2e4\ubcf4\uba74 Scratch Link\uc5d0\uc11c WebSocket \uc11c\ubc84\ub97c \uc81c\uacf5\ud558\uace0, BLE, BT\ub85c \uad6c\ubd84\ud558\uc5ec \uc811\uc18d\ud560 \uc218 \uc788\ub2e4. \ud1b5\uc2e0\uc740 JSONRPC\ub97c \uc774\uc6a9\ud55c\ub2e4. BLE, BT \ubaa8\ub450 \ud504\ub85c\ud1a0\ucf5c\uc740 \ub3d9\uc77c\ud558\ub2e4. <\/p>\n\n\n\n<p>\ub530\ub77c\uc11c Bluetooth \uc2dc\ub9ac\uc5bc, BLE \ub4f1\uc744 \uc774\uc6a9\ud55c \uae30\uae30\ub4e4\uc740 \uae30\uc874 \ud504\ub85c\ud1a0\ucf5c\uc744 \uc774\uc6a9\ud558\uc5ec \uc811\uc18d \ubc0f \uc5f0\ub3d9\uc774 \uac00\ub2a5\ud558\ub2e4. OROCA-Edubot\ub3c4 \uc774\uc640 \uac19\uc740 \uacfc\uc815\uc744 \ud1b5\ud574 \uc5f0\ub3d9\uc5d0 \uc131\uacf5\ud558\uc600\ub2e4. \uc774\uc81c \uc880\ub354 \ub098\uc544\uac00 \uc2dc\ub9ac\uc5bc\ud3ec\ud2b8\ub97c \uc774\uc6a9\ud560 \uacbd\uc6b0 (\uc608\ub97c \ub4e4\uc5b4 Arduino \ubcf4\ub4dc\ub098 \uc0ac\uc6a9\uc790\uac00 \uac1c\ubc1c\ud55c \ubcf4\ub4dc\ub4e4)\uc5d4 \uc5b4\ub5bb\uac8c \ud574\uc57c \ud560\uae4c?<\/p>\n\n\n\n<p>\uace0\ubbfc\ud574\ubcf8 \uacb0\uacfc \uac00\uc7a5 \ud074\ub9ac\uc5b4\ud55c \ubc29\ubc95\uc740 Scratch Link\ub97c \ud655\uc7a5\ud558\uc5ec \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc744 \uc9c0\uc6d0\ud558\uac8c\ub054 \ud558\uba74 \ub420 \uac83 \uac19\ub2e4. \ub9c8\uce68 \uae30\uc874\uae4c\uc9c4 \uc2e4\ud589\ud30c\uc77c\ub85c\ub9cc \uc81c\uacf5\ub418\uc5c8\ub358 Scratch Link\uac00 \uc774\uc820 \uc18c\uc2a4\uae4c\uc9c0 \uc81c\uacf5\ub418\uace0 \uc788\ub2e4. \uac1c\ubc1c \uc9c0\uc6d0 \uc6b4\uc601\uccb4\uc81c\ub294 macOS\uc640 \uc708\ub3c4\uc6b0\uc774\ub2e4. <\/p>\n\n\n\n<p>\uc18c\uc2a4\ub294 <a rel=\"noreferrer noopener\" aria-label=\"https:\/\/github.com\/llk\/scratch-link (opens in a new tab)\" href=\"https:\/\/github.com\/llk\/scratch-link\" target=\"_blank\">https:\/\/github.com\/llk\/scratch-link<\/a>\uc5d0\uc11c \ubc1b\uc744 \uc218 \uc788\ub2e4. \uac1c\ubc1cPC\uc5d0 \uc77c\ub2e8 \ud074\ub860\ud574 \ubcf4\uace0,<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ git clone https:\/\/github.com\/LLK\/scratch-link.git<\/code><\/pre>\n\n\n\n<p>README.md \ud30c\uc77c\uc5d0 \ub098\uc628 \uac83\uacfc \uac19\uc740 \uacfc\uc815\uc744 \ud1b5\ud574 \ube4c\ub4dc\ud574\ubcf4\uc790. \ubcf4\uc548 WebSocket\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\ubbc0\ub85c \uc778\uc99d\uc11c\uac00 \ud544\uc694\ud558\ub2e4. \ub098\uc911\uc5d0 \ud310\ub9e4\ud558\uac70\ub098 \uc591\uc0c1 \ubaa9\uc801\uc774\ub77c\uba74 \ub3c8\uc744 \uc8fc\uace0 \uad6c\uc785\ud574\uc57c \ud558\uc9c0\ub9cc, \uac1c\uc778\uc774 \uc0ac\uc6a9\ud560 \uacbd\uc6b0\uc5d4 PC\uc5d0\uc11c \uc27d\uac8c \uc0dd\uc131 \uac00\ub2a5\ud558\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ cd scratch-link\n$ cd Certificates\n$ openssl req -x509 -out scratch-device-manager.cer -keyout scratch-device-manager.key \\\n  -newkey rsa:2048 -nodes -sha256 \\\n  -subj '\/CN=scratch-device-manager' -extensions EXT -config &lt;( \\\n   printf \"&#91;dn]\\nCN=localhost\\n&#91;req]\\ndistinguished_name = dn\\n&#91;EXT]\\nsubjectAltName=DNS:localhost\\nkeyUsage=digitalSignature\\nextendedKeyUsage=serverAuth\")\n\n$ .\/convert-certificates.sh<\/code><\/pre>\n\n\n\n<p>\uc704 \uacfc\uc815\uc774 \uc644\ub8cc\ub418\uba74 out \ub514\ub809\ud1a0\ub9ac\uc5d0 &nbsp;scratch-device-manager.pem, scratch-device-manager.pfx \ud30c\uc77c\uc774 \uc0dd\uc131\ub41c\ub2e4.<\/p>\n\n\n\n<p>\ud604\uc7ac \ub0b4\uac00 \uc0ac\uc6a9\ud558\uace0 \uc788\ub294 \uac1c\ubc1c\ud658\uacbd\uc740 macOS \uc774\ubbc0\ub85c, macOS \ud3f4\ub354\ub85c \uc774\ub3d9\ud558\uc5ec \ube4c\ub4dc\ub97c \uc2dc\uc791\ud55c\ub2e4. Xcode, pngcrush\ub97c \ubbf8\ub9ac \uc124\uce58\ub418\uc5b4 \uc788\uc5b4\uc57c \ud55c\ub2e4. Xcode\ub294 \uc571\uc2a4\ud1a0\uc5b4\uc5d0\uc11c, pngcrush\ub294 homebrew\ub97c \uc774\uc6a9\ud558\uba74 \uc27d\uac8c \uc124\uce58\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ cd ..\n$ cd macOS\n$ make<\/code><\/pre>\n\n\n\n<p>\ube4c\ub4dc\uc5d0 \ud544\uc694\ud55c \ud328\ud0a4\uc9c0\ub4e4\uc774 \uc790\ub3d9\uc73c\ub85c \uc124\uce58\ub418\uace0, \uc5d0\ub7ec\uac00 \uc5c6\uc774 \uc644\ub8cc\ub418\uba74 dist \ub514\ub809\ud1a0\ub9ac\uac00 \uc0dd\uc131\ub418\uace0 Scratch Link \uc571\uc774 \uc0dd\uc131\ub418\uc5b4 \uc788\uc74c\uc744 \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"791\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=791\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-5.png?fit=510%2C162&amp;ssl=1\" data-orig-size=\"510,162\" 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-5\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-5.png?fit=510%2C162&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-5.png?fit=510%2C162&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-5.png?resize=272%2C86&#038;ssl=1\" alt=\"\" class=\"wp-image-791\" width=\"272\" height=\"86\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\uc774\uc81c \uc774 \uc571\uc744 \uc2e4\ud589\ud574\ubcf4\uba74, \uae30\uc874\uacfc \uac19\uc774 \uba54\ub274\ubc14\uc5d0 Scratch Link\uac00 \uc704\uce58\ud55c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"792\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=792\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-6.png?fit=176%2C48&amp;ssl=1\" data-orig-size=\"176,48\" 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-6\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-6.png?fit=176%2C48&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-6.png?fit=176%2C48&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-6.png?resize=119%2C32&#038;ssl=1\" alt=\"\" class=\"wp-image-792\" width=\"119\" height=\"32\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>Scratch 3.0\ub97c \uc2e4\ud589\ud558\uace0, BLE\uc640 BT \ub4f1 \uae30\uc874\uacfc \ub3d9\uc77c\ud558\uac8c \ub3d9\uc791\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4. \uc9c0\ub09c\ubc88 \uac1c\ubc1c\ud658\uacbd \uad6c\ucd95 \ud3ec\uc2a4\ud305\uc5d0\uc11c device-manager.scratch.mit.edu\ub97c hosts \ud30c\uc77c\uc744 \uc774\uc6a9\ud574 127.0.0.1\ub85c \uac15\uc81c \ubcc0\uacbd\ud558\uc600\ub294\ub370, \uc774\uc81c Scratch Link\ub97c \uc9c1\uc811 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c localhost\ub85c \ubcc0\uacbd\ud558\uc5ec \uc0ac\uc6a9\ud574\ub3c4 \ubb34\ubc29\ud558\ub2e4.<\/p>\n\n\n\n<p>\ub530\ub77c\uc11c, hosts \ud30c\uc77c\uc744 \ubcc0\uacbd\ud558\ub294 \uc791\uc5c5\uc744 \ud558\uc9c0 \uc54a\uace0, scratch-vm \ub0b4\uc5d0\uc11c \ub2e4\uc74c\uc758 \ud30c\uc77c\uc5d0 \uc788\ub294 \uc6f9\uc18c\ucf13 \uc8fc\uc18c\ub97c localhost\ub85c \ubcc0\uacbd\ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>> scratch-vm\/src\/io\/ble.js\n\nconst ScratchLinkWebSocket = 'wss:\/\/localhost:20110\/scratch\/ble';<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>> scratch-vm\/src\/io\/bt.js\n\nconst ScratchLinkWebSocket = 'wss:\/\/localhost:20110\/scratch\/bt';<\/code><\/pre>\n\n\n\n<p>(\ucd94\uac00) \ucd5c\uadfc \ubcc0\uacbd\ub41c \ubc84\uc804\uc5d0\uc120 .\/util\/scratch-link-websocket.js \uc5d0\uc11c \uc800 \ub9c1\ud06c\ub4e4\uc744 \uad00\ub9ac\ud558\ub294 \ub4ef \ud558\ub2e4. \ub530\ub77c\uc11c \ud574\ub2f9 \ud30c\uc77c\uc744 \uc218\uc815\ud574\uc8fc\uba74 \ub428.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>> scratch-vm\/src\/util\/scratch-link-websocket.js\n28: this._ws = new WebSocket('wss:\/\/device-manager.scratch.mit.edu:20110\/scratch\/ble');\n31: this._ws = new WebSocket('wss:\/\/device-manager.scratch.mit.edu:20110\/scratch\/bt'); <\/code><\/pre>\n\n\n\n<p>\uc774\uc81c Scratch 3.0\uc744 \uc2e4\ud589\ud558\uace0 \ud655\uc7a5\uce74\ub4dc\ub97c \uc2e4\ud589\ud574\ubcf4\uba74,<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"793\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=793\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?fit=1028%2C712&amp;ssl=1\" data-orig-size=\"1028,712\" 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-7\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?fit=1000%2C693&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?fit=525%2C364&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?resize=323%2C224&#038;ssl=1\" alt=\"\" class=\"wp-image-793\" width=\"323\" height=\"224\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?w=1028&amp;ssl=1 1028w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?resize=1000%2C693&amp;ssl=1 1000w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-7.png?resize=768%2C532&amp;ssl=1 768w\" sizes=\"(max-width: 323px) 100vw, 323px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\uc0ac\ud30c\ub9ac\uc758 \uacbd\uc6b0, \uc704\uc640 \uac19\uc774 Scratch Link\uc640\uc758 \uc5f0\uacb0\uc774 \ub418\uc9c0 \uc54a\ub294\ub2e4. \uc0c8\ub85c\uc6b4 \uc0ac\ud30c\ub9ac \ucc3d\uc744 \ub744\uc6b0\uace0 <a rel=\"noreferrer noopener\" aria-label=\"https:\/\/localhost:20110 (opens in a new tab)\" href=\"https:\/\/localhost:20110\" target=\"_blank\">https:\/\/localhost:20110<\/a> \ub85c \uc811\uc18d\ud55c\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc774 \ub098\uc624\ub294\ub370,<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"794\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=794\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?fit=1454%2C442&amp;ssl=1\" data-orig-size=\"1454,442\" 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-8\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?fit=1000%2C304&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?fit=525%2C160&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?resize=459%2C139&#038;ssl=1\" alt=\"\" class=\"wp-image-794\" width=\"459\" height=\"139\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?w=1454&amp;ssl=1 1454w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?resize=1000%2C304&amp;ssl=1 1000w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?resize=768%2C233&amp;ssl=1 768w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-8.png?w=1050&amp;ssl=1 1050w\" sizes=\"(max-width: 459px) 100vw, 459px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"795\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=795\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-9.png?fit=866%2C282&amp;ssl=1\" data-orig-size=\"866,282\" 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-9\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-9.png?fit=866%2C282&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-9.png?fit=525%2C171&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-9.png?resize=394%2C127&#038;ssl=1\" alt=\"\" class=\"wp-image-795\" width=\"394\" height=\"127\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-9.png?w=866&amp;ssl=1 866w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-9.png?resize=768%2C250&amp;ssl=1 768w\" sizes=\"(max-width: 394px) 100vw, 394px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>Show Details \ubc84\ud2bc\uc744 \ub204\ub974\uace0, \uc544\ub798\ucabd\uc5d0 visit this website \ub9c1\ud06c\ub97c \ub204\ub974\uace0 \ub2e4\uc2dc \ud55c\ubc88 \uc811\uc18d\ud558\uaca0\ub2e4\uace0 \ud558\uba74, \uc5b4\ub4dc\ubbfc \uc554\ud638\ub97c \uc785\ub825\ud558\uace0 \ud604\uc7ac\uc758 \uc778\uc99d\uc11c\uac00 \uc0ac\ud30c\ub9ac\uc5d0 \uc800\uc7a5\ub41c\ub2e4.<\/p>\n\n\n\n<p>\uc774\uc81c Scratch 3.0\uc5d0\uc11c \uc815\uc0c1\uc801\uc73c\ub85c \uc2e4\ud589\ub428\uc744 \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img data-attachment-id=\"796\" data-permalink=\"https:\/\/ahnbk.com\/?attachment_id=796\" data-orig-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?fit=1024%2C756&amp;ssl=1\" data-orig-size=\"1024,756\" 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-10\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?fit=1000%2C738&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?fit=525%2C388&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?resize=434%2C320&#038;ssl=1\" alt=\"\" class=\"wp-image-796\" width=\"434\" height=\"320\" srcset=\"https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?resize=1000%2C738&amp;ssl=1 1000w, https:\/\/i0.wp.com\/ahnbk.com\/wp-content\/uploads\/2019\/05\/image-10.png?resize=768%2C567&amp;ssl=1 768w\" sizes=\"(max-width: 434px) 100vw, 434px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\ub2e4\uc74c\uc5d4 Scratch Link\uc758 \uc18c\uc2a4\ub97c \ubd84\uc11d\ud558\uace0 \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc774 \uac00\ub2a5\ud558\ub3c4\ub85d \ubaa8\ub4c8\uc744 \uc791\uc131\ud574\ubcf4\ub3c4\ub85d \ud55c\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\ucc38\uace0\ub9c1\ud06c<\/p>\n\n\n\n<ul><li><a rel=\"noreferrer noopener\" aria-label=\"https:\/\/github.com\/llk\/scratch-link 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(Scratch \ub0b4\ubd80\uc5d0 \uad6c\ud604\ud560 \uc218\ub3c4 \uc788\uc744 \uac83 \uac19\uc740\ub370, \uc774\ub807\uac8c \ub418\uba74 \ub2e4\ub978 \uc6b4\uc601\uccb4\uc81c\uc5d0\uc11c \ud638\ud658\uc774 \uc548\ub420\ud14c\ub2c8 \uc544\ub9c8\ub3c4 \uc774\ub807\uac8c \ub9cc\ub4e4\uc5b4 \ub193\uc740\ub4ef \ud558\ub2e4) \ub0b4\ubd80\ub97c \ub4e4\uc5ec\ub2e4\ubcf4\uba74 Scratch Link\uc5d0\uc11c WebSocket \uc11c\ubc84\ub97c \uc81c\uacf5\ud558\uace0, BLE, BT\ub85c \uad6c\ubd84\ud558\uc5ec \uc811\uc18d\ud560 \uc218 \uc788\ub2e4. \ud1b5\uc2e0\uc740 JSONRPC\ub97c \uc774\uc6a9\ud55c\ub2e4. BLE, BT \ubaa8\ub450 \ud504\ub85c\ud1a0\ucf5c\uc740 \ub3d9\uc77c\ud558\ub2e4. \ub530\ub77c\uc11c Bluetooth \uc2dc\ub9ac\uc5bc, BLE \ub4f1\uc744 \uc774\uc6a9\ud55c &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/ahnbk.com\/?p=790\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Scratch 3.0 Scratch Link\ub97c \uc218\uc815\ud574\ubcf4\uae30&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[63],"tags":[176,67,73,75,74],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2wXSW-cK","jetpack-related-posts":[],"jetpack_likes_enabled":false,"_links":{"self":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts\/790"}],"collection":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=790"}],"version-history":[{"count":4,"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts\/790\/revisions"}],"predecessor-version":[{"id":1171,"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts\/790\/revisions\/1171"}],"wp:attachment":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}