Moved the 05-led-roulette the-challenge example to project examples

Author: nikgul

microbit/src/05-led-roulette/examples/the-challenge.rs

@@ -0,0 +1,45 @@
+#![deny(unsafe_code)]
+#![no_main]
+#![no_std]
+
+use cortex_m_rt::entry;
+use rtt_target::rtt_init_print;
+use panic_rtt_target as _;
+use embedded_hal::delay::DelayNs;
+use microbit::{
+    board::Board,
+    display::blocking::Display,
+    hal::Timer,
+};
+
+#[entry]
+fn main() -> ! {
+    rtt_init_print!();
+
+    let board = Board::take().unwrap();
+
+    let mut timer = Timer::new(board.TIMER0);
+    let mut display = Display::new(board.display_pins);
+
+    // Setup the display delay so the math works as expected later.
+    display.set_delay_ms(1);
+
+    let light_it_all = [
+        [1, 1, 1, 1, 1],
+        [1, 1, 1, 1, 1],
+        [1, 1, 1, 1, 1],
+        [1, 1, 1, 1, 1],
+        [1, 1, 1, 1, 1],
+    ];
+
+    loop {
+        // Show light_it_all for 1000ms
+        display.show(&mut timer, light_it_all, 1_000);
+
+        // clear the display again
+        display.clear();
+
+        timer.delay_ms(1000_u32);
+    }
+}
+

microbit/src/05-led-roulette/the-challenge.md

@@ -18,50 +18,7 @@ Since working with the LED pins separately is quite annoying
 you can use the display API provided by the BSP. It works like this:
 
 ```rust
-#![deny(unsafe_code)]
-#![no_main]
-#![no_std]
-
-use cortex_m_rt::entry;
-use rtt_target::rtt_init_print;
-use panic_rtt_target as _;
-use embedded-hal::delay::DelayNS;
-use microbit::{
-    board::Board,
-    display::blocking::Display,
-    hal::Timer,
-};
-
-#[entry]
-fn main() -> ! {
-    rtt_init_print!();
-
-    let board = Board::take().unwrap();
-
-    let mut timer = Timer::new(board.TIMER0);
-    let mut display = Display::new(board.display_pins);
-
-    // Setup the display delay so the math works as expected later.
-    display.set_delay_ms(1);
-
-    let light_it_all = [
-        [1, 1, 1, 1, 1],
-        [1, 1, 1, 1, 1],
-        [1, 1, 1, 1, 1],
-        [1, 1, 1, 1, 1],
-        [1, 1, 1, 1, 1],
-    ];
-
-    loop {
-        // Show light_it_all for 1000ms
-        display.show(&mut timer, light_it_all, 1_000);
-
-        // clear the display again
-        display.clear();
-
-        timer.delay_ms(1000_u32);
-    }
-}
+{{#include examples/the-challenge.rs}}
 ```
 
 Equipped with this API your task basically boils down to just having