added compass

docs/projects.md

@@ -2,32 +2,44 @@
 
 ![](/static/mb/projects/all10.png)
 
-![](/static/mb/projects/a1-display.png)
-
 ## [Flashing Heart](/projects/flashing-heart)
 
-![](/static/mb/projects/a2-buttons.png)
+![](/static/mb/projects/a1-display.png)
 
 ## [Smiley Buttons](/projects/smiley-buttons)
 
-![](/static/mb/projects/a3-pins.png)
+![](/static/mb/projects/a2-buttons.png)
 
 ## [Love Meter](/projects/love-meter)
 
-![](/static/mb/projects/a4-motion.png)
+![](/static/mb/projects/a3-pins.png)
 
 ## [Rock Paper Scissors](/projects/rock-paper-scissors)
 
+![](/static/mb/projects/a4-motion.png)
+
+## [Compass](/projects/compass)
+
 ![](/static/mb/projects/a5-compass.png)
 
+## Music
+
 ![](/static/mb/projects/a6-music.png)
 
+## Conductive
+
 ![](/static/mb/projects/a7-conductive.png)
 
+## Network
+
 ![](/static/mb/projects/a8-network.png)
 
+## Radio
+
 ![](/static/mb/projects/a9-radio.png)
 
+## Watch
+
 ![](/static/mb/projects/a10-watch.png)
 
 

docs/projects/compass.md

@@ -0,0 +1,83 @@
+![](/static/mb/projects/a5-compass.png)
+
+Use the compass to determine which direction you are heading.
+
+## Step 1
+
+Continuously sample the compass heading and store in the variable `degrees`:
+
+```blocks
+let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+});
+```
+
+## Step 2
+
+If the degrees is less than 45, we are heading North:
+
+```blocks
+let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees <= 45) {
+        basic.showString("N");
+    } else if (false) { } else { }
+});
+```
+
+### Step 3
+
+Otherwise, if the degrees is less than 135, we are heading East:
+
+```blocks
+let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees <= 45) {
+        basic.showString("N");
+    } else if (degrees <= 135) {
+        basic.showString("E");
+    } else { }
+});
+```
+
+### Step 4
+
+Otherwise, if the degrees is less than 225, we are heading East:
+
+```blocks
+let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees <= 45) {
+        basic.showString("N");
+    } else if (degrees <= 135) {
+        basic.showString("E");
+    } else if (degrees <= 225) {
+        basic.showString("S");
+    } else {
+    }
+});
+```
+
+### Step 5
+
+Otherwise, we are heading west. 
+
+```blocks
+let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees <= 45) {
+        basic.showString("N");
+    } else if (degrees <= 135) {
+        basic.showString("E");
+    } else if (degrees <= 225) {
+        basic.showString("S");
+    } else {
+        basic.showString("W");
+    }
+});
+```

docs/projects/rock-paper-scissors.md

@@ -1,5 +1,7 @@
 # rock paper scissors
 
+![](/static/mb/projects/a4-motion.png)
+
 ### ~avatar avatar
 
 ```sim