Revision 1:40027344b249, committed 2014-02-12

Comitter:

SomeRandomBloke

Date:

Wed Feb 12 22:18:52 2014 +0000

Parent:

0:98d83f5b309f

Child:

2:8de3eccd527e

Commit message:

updates to use hardware SPI and checking for last colour set

Changed in this revision

--- a/Adafruit_WS2801.lib	Tue Feb 11 21:30:21 2014 +0000
+++ b/Adafruit_WS2801.lib	Wed Feb 12 22:18:52 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/SomeRandomBloke/code/Adafruit_WS2801/#6ff477690983
+http://mbed.org/users/SomeRandomBloke/code/Adafruit_WS2801/#2fdaa13896a4

--- a/main.cpp	Tue Feb 11 21:30:21 2014 +0000
+++ b/main.cpp	Wed Feb 12 22:18:52 2014 +0000
@@ -85,8 +85,11 @@
 //
 DigitalIn SCButton(P1_31);
 
-PinName dataPin(P1_28);    // Yellow wire on Adafruit Pixels
-PinName clockPin(P0_7);    // Green wire on Adafruit Pixels
+// For Bit-Banging SPI use Pins 40 and 39
+PinName dataPin(p40);    // PIN 40 - Yellow wire on Adafruit Pixels
+PinName clockPin(p39);    // PIN 39 - Green wire on Adafruit Pixels
+
+// For hardware SPI use Pin 16 for Data and pin 13 for Clk
 
 /* cc3000 module declaration specific for user's board. Check also init() */
 #if (MY_BOARD == WIGO)
@@ -117,7 +120,7 @@
 uint32_t lastColour = 0;
 
 // Set the first variable to the number of rows, the second to number of pixels. 32 = 32 pixels in a row
-Adafruit_WS2801 strip = Adafruit_WS2801(1,32, dataPin, clockPin);
+Adafruit_WS2801 strip = Adafruit_WS2801(32, dataPin, clockPin);
 
 // Setup the colour table and mappings
 #define NUM_COLOURS 12
@@ -125,16 +128,16 @@
     char name[12];
     uint32_t value;
 } colTable[NUM_COLOURS] = {
-    { "red",       0xFF0000 },
+    { "red",       0xff0000 },
     { "green",     0x008000 },
-    { "blue",      0x0000FF },
-    { "cyan",      0x00FFFF },
-    { "white",     0xFFFFFF },
-    { "warmwhite", 0xFDF5E6 },
+    { "blue",      0x0000ff },
+    { "cyan",      0x00ffff },
+    { "white",     0xffffff },
+    { "warmwhite", 0xfdf5e6 },
     { "purple",    0x800080 },
-    { "magenta",   0xFF00FF },
-    { "yellow",    0xFFFF00 },
-    { "orange",    0xFFA500 },
+    { "magenta",   0xff00ff },
+    { "yellow",    0xffff00 },
+    { "orange",    0xffa500 },
     { "pink",      0xff69b4 },
     { "oldlace",   0xfd5e56 }
 };
@@ -207,10 +210,15 @@
 
     for( int i=0; i < NUM_COLOURS; i++ ) {
         if( strncmp( colTable[i].name, colStr, strlen(colTable[i].name) ) == 0 ) {
-            for (int n=0; n < strip.numPixels(); n++) {
-                strip.setPixelColor(n, colTable[i].value);
-                strip.show();
-                wait_ms(50);
+            if( colTable[i].value != lastColour ) {
+                for (int n=0; n < strip.numPixels(); n++) {
+                    strip.setPixelColor(n, colTable[i].value);
+                    strip.show();
+                    wait_ms(100);
+                }
+                lastColour = colTable[i].value;
+            } else {
+                uart.printf("Same as previous colour\r\n");
             }
             return;
         }
@@ -228,6 +236,8 @@
     //GET data
     uart.printf("\r\nTrying to fetch page...\r\n");
     int ret = http.get("http://api.thingspeak.com/channels/1417/field/1/last.txt", str, 128);
+    // Just a local test url, saves having to tweet the cheerlights colour every time
+//    int ret = http.get("http://192.168.1.3/last.txt", str, 128);
     if (!ret) {
         uart.printf("Page fetched successfully - read %d characters\r\n", strlen(str));
         uart.printf("Result: %s\r\n", str);
@@ -256,6 +266,8 @@
     LPC_SYSCON->SYSAHBCLKCTRL |= (0x1 << 26);
 
     uart.baud(SERIAL_BAUD_RATE);
+    
+    strip.updatePins();    // Switch to Hardware SPI
 
     strip.begin();