Binary counter from 0 to (2^25)-1 with wraparound. Bits are displayed on the LED matrix, filling from bottom right. Press buttonA for a decimal representation of the current counter value.

Dependencies:   microbit

Revision:
0:f5e7d4075c2a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jul 24 14:28:18 2018 +0000
@@ -0,0 +1,20 @@
+#include "MicroBit.h"
+
+MicroBit uBit;
+
+int main()
+{
+    char col[25] = {4, 3, 2, 1, 0, 4, 3, 2, 1, 0, 4, 3, 2, 1, 0, 4, 3, 2, 1, 0, 4, 3, 2, 1, 0};
+    char row[25] = {4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0};
+    int i, count = 0;
+    uBit.init();
+    while (1) {
+        for (i = 0; i < 25; i++) {
+            uBit.display.image.setPixelValue(col[i], row[i], ((count >> i) & 1) * 255);
+        }
+        if (uBit.buttonA.isPressed()) {
+            uBit.display.scroll(count);
+        }
+        count = count++ & 33554431;
+    }
+}
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