diff --git a/pxtarget.json b/pxtarget.json
index ca3beb1d..5fe46093 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -26,7 +26,7 @@
             ]
         },
         "files": {
-            "main.blocks": "<xml xmlns=\"http://www.w3.org/1999/xhtml\"><block type=\"device_print_message\"><value name=\"text\"><shadow type=\"text\"><field name=\"TEXT\">Hello!</field></shadow></value></block></xml>",
+            "main.blocks": "<xml xmlns=\"http://www.w3.org/1999/xhtml\"><block type=\"device_show_leds\"><field name=\"LED00\">FALSE</field><field name=\"LED10\">FALSE</field><field name=\"LED20\">FALSE</field><field name=\"LED30\">FALSE</field><field name=\"LED40\">FALSE</field><field name=\"LED01\">FALSE</field><field name=\"LED11\">TRUE</field><field name=\"LED21\">FALSE</field><field name=\"LED31\">TRUE</field><field name=\"LED41\">FALSE</field><field name=\"LED02\">FALSE</field><field name=\"LED12\">FALSE</field><field name=\"LED12\">FALSE</field><field name=\"LED22\">FALSE</field><field name=\"LED32\">FALSE</field><field name=\"LED42\">FALSE</field><field name=\"LED03\">TRUE</field><field name=\"LED13\">FALSE</field><field name=\"LED23\">FALSE</field><field name=\"LED33\">FALSE</field><field name=\"LED43\">TRUE</field><field name=\"LED04\">FALSE</field><field name=\"LED14\">TRUE</field><field name=\"LED24\">TRUE</field><field name=\"LED34\">TRUE</field><field name=\"LED44\">FALSE</field></block></xml>",
             "main.ts": "\n"
         }
     },
@@ -44,7 +44,7 @@
             ]
         },
         "files": {
-            "main.ts": "basic.showString('Hello!')\n"
+            "main.ts": "basic.showLeds(`\r\n    . . . . .\r\n    . # . # .\r\n    . . . . .\r\n    # . . . #\r\n    . # # # .\r\n    `);"
         }
     },
     "compile": {