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--- holiday:oak [2016/12/23 22:35]
digistump created
+++ holiday:oak [2016/12/24 22:07] (current)
digistump [CheerLights]
@@ Line 21: / Line 21: @@
 ==== CheerLights ====
-To use the Oak with CheerLights (http://cheerlights.com/) use the sketch below and again set NUMPIXELS appropriately.
+To use the Oak with CheerLights (http://cheerlights.com/) use the sketch below in the Arduino IDE set up for the Oak and again set NUMPIXELS appropriately.
+<code>
+#include <ESP8266WiFi.h>
+#include <ESP8266HTTPClient.h>
+#include <Adafruit_NeoPixel.h>
+// Which pin on the Arduino is connected to the NeoPixels?
+#define PIN            1
+// How many NeoPixels are attached to the Arduino?
+#define NUMPIXELS      9 //13 for dove, 9 for menorah or tree
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_RGB + NEO_KHZ800);
+bool firstColor = true;
+String lastColor = "";
+void setup() {
+  pixels.begin();
+}
+uint8_t redIndex[13];
+uint8_t greenIndex[13];
+uint8_t blueIndex[13];
+void setColor(String colorname){
+  uint8_t newcolor[3];
+  if(colorname == "red"){
+    newcolor[0] = 255;
+    newcolor[1] = 0;
+    newcolor[2] = 0;
+  }
+  else if(colorname == "green"){
+    newcolor[0] = 0;
+    newcolor[1] = 128;
+    newcolor[2] = 0;
+  }
+  else if(colorname == "blue"){
+    newcolor[0] = 0;
+    newcolor[1] = 0;
+    newcolor[2] = 255;
+  }
+  else if(colorname == "cyan"){
+    newcolor[0] = 0;
+    newcolor[1] = 255;
+    newcolor[2] = 255;
+  }
+  else if(colorname == "white"){
+    newcolor[0] = 255;
+    newcolor[1] = 255;
+    newcolor[2] = 255;
+  }
+  else if(colorname == "oldlace"){
+    newcolor[0] = 253;
+    newcolor[1] = 245;
+    newcolor[2] = 230;
+  }
+  else if(colorname == "warmwhite"){
+    newcolor[0] = 253;
+    newcolor[1] = 245;
+    newcolor[2] = 230;
+  }
+  else if(colorname == "purple"){
+    newcolor[0] = 128;
+    newcolor[1] = 0;
+    newcolor[2] = 128;
+  }
+  else if(colorname == "magenta"){
+    newcolor[0] = 255;
+    newcolor[1] = 0;
+    newcolor[2] = 255;
+  }
+  else if(colorname == "yellow"){
+    newcolor[0] = 255;
+    newcolor[1] = 255;
+    newcolor[2] = 0;
+  }
+  else if(colorname == "orange"){
+    newcolor[0] = 255;
+    newcolor[1] = 165;
+    newcolor[2] = 0;
+  }
+  else if(colorname == "pink"){
+    newcolor[0] = 255;
+    newcolor[1] = 192;
+    newcolor[2] = 203;
+  }
+  if(firstColor){
+    firstColor = false;
+    for(uint8_t x = 0; x<NUMPIXELS; x++){
+      redIndex[x] = newcolor[0];
+      greenIndex[x] = newcolor[1];
+      blueIndex[x] = newcolor[2];
+    }
+  }
+  else{
+    for(uint8_t x = NUMPIXELS-1; x>0; x--){
+      redIndex[x] = redIndex[x-1];
+      greenIndex[x] = greenIndex[x-1];
+      blueIndex[x] = blueIndex[x-1];
+    }
+    redIndex[0] = newcolor[0];
+    greenIndex[0] = newcolor[1];
+    blueIndex[0] = newcolor[2];
+  }
+  for(uint8_t x = 0; x<NUMPIXELS; x++){
+    pixels.setPixelColor(x, pixels.Color(redIndex[x],greenIndex[x],blueIndex[x]));
+  }
+  pixels.show();
+}
+void loop() {
+     HTTPClient http;
+     http.begin("api.thingspeak.com", 80, "/channels/1417/field/1/last.txt"); //HTTP
+        // start connection and send HTTP header
+        int httpCode = http.GET();
+        if(httpCode) {
+            // file found at server
+            if(httpCode == 200) {
+                String payload = http.getString();
+                if(payload != lastColor){
+                  setColor(payload);
+                }
+            }
+        }
+    //check every 30 seconds
+    delay(30000);
+}
+</code>

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