Charles Tritt / Mbed OS Serial2RGB_21_v5

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Diff: main.cpp

Revision:
2:f91fc3b8d8f7
Parent:
1:fdb8ecdf954f
Child:
3:cbacf69dbed5
--- a/main.cpp	Wed Mar 15 01:54:31 2017 +0000
+++ b/main.cpp	Wed Mar 15 02:24:10 2017 +0000
@@ -1,8 +1,23 @@
 #include "mbed.h"
 /*
     Serial2RGB main by C. S. Tritt, Last revised 3/14/17 (v. 1.0)
-    Toggles RGB LED junctions in response to serial input. Uses "unbuffered" 
-    reads (Enter, CR/LF not required). 
+    
+    Toggles RGB LED junctions in response to serial input.
+    
+    Suggested wiring...
+    
+    Common Anode LED (active low)
+    
+                           /-- 1 kΩ -- D9 (red)
+    + 3.3 to 5.0 V ----LED<--- 680 Ω -- D10 (green)
+                           \-- 680 Ω -- D11 (blue)
+    
+    Common Cathode LED (active high)
+    
+                /-- 1 kΩ -- D9 (red)
+    GND ----LED<--- 680 Ω -- D10 (green)
+                \-- 680 Ω -- D11 (blue)
+   
 */
 DigitalOut RedLED(D9); // Physically same as Arduino Digital pin 9.
 DigitalOut GrnLED(D10); // Physically same as Arduino Digital pin 10.