Insert hardware vids into csintro pages (#1828)

* Insert hardward vids into csintro pages * bad paste of link
2019-02-12 16:25:51 -08:00
parent cfd5ba61e5
commit 739b9568b5
6 changed files with 50 additions and 1 deletions
--- a/docs/courses/csintro/coordinates/activity.md
+++ b/docs/courses/csintro/coordinates/activity.md
@ -75,6 +75,14 @@ led.plot(2, 3)
 led.plot(3, 3)
 ```

+### ~ hint
+
+LEDs are amazing little devices. If you haven't seen this video about how they work, take a few minutes to learn more about them.
+
+https://www.youtube.com/watch?v=qqBmvHD5bCw
+
+### ~
+
 ## Mod this!
 * Add a third image to the animation, perhaps a frown face. 
 * Make your own custom animation! What LEDs stay the same and which need to be toggled?