microbit-samples: Added an example using our new, componentised DAL.

.gitignore

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+build
+.yotta.json
+yotta_targets
+yotta_modules

README.md

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+# microbit-samples
+
+[insert documentation URL here, when we are live]

module.json

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+{
+  "name": "microbit-samples",
+  "version": "0.0.1",
+  "description": "The micro:bit runtime common abstraction with examples.",
+  "license": "MIT",
+  "dependencies": {
+    "microbit": "lancaster-university/microbit#component-refactor"
+  },
+  "targetDependencies": {},
+  "bin": "./source"
+}

source/main.cpp

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+#include "MicroBit.h"
+
+MicroBit uBit;
+
+int main()
+{
+    // Initialise the micro:bit runtime.
+    uBit.init();
+
+    // Insert your code here!
+    uBit.display.scroll("BELLO! :)");
+
+    // If main exits, there may still be other fibers running or registered event handlers etc.
+    // Simply release this fiber, which will mean we enter the scheduler. Worse case, we then
+    // sit in the idle task forever, in a power efficient sleep.
+    release_fiber();
+}