1 | /*
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2 | CheerLights
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3 |
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4 | Reads the latest CheerLights color on ThingSpeak, and sets a common anode RGB LED on digital pins 5, 6, and 9.
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5 | On Spark core, the built in RGB LED is used
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6 | Visit http://www.cheerlights.com for more info.
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7 |
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8 | ThingSpeak ( https://www.thingspeak.com ) is a free IoT service for prototyping
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9 | systems that collect, analyze, and react to their environments.
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10 |
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11 | Copyright 2015, The MathWorks, Inc.
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12 |
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13 | Documentation for the ThingSpeak Communication Library for Arduino is in the extras/documentation folder where the library was installed.
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14 | See the accompaning licence file for licensing information.
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15 | */
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16 |
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17 | #ifdef SPARK
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18 | #include "ThingSpeak/ThingSpeak.h"
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19 | #else
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20 | #include "ThingSpeak.h"
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21 | #endif
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22 |
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23 | // ***********************************************************************************************************
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24 | // This example selects the correct library to use based on the board selected under the Tools menu in the IDE.
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25 | // Yun, Wired Ethernet shield, wi-fi shield, esp8266, and Spark are all supported.
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26 | // With Uno and Mega, the default is that you're using a wired ethernet shield (http://www.arduino.cc/en/Main/ArduinoEthernetShield)
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27 | // If you're using a wi-fi shield (http://www.arduino.cc/en/Main/ArduinoWiFiShield), uncomment the line below
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28 | // ***********************************************************************************************************
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29 | //#define USE_WIFI_SHIELD
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30 |
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31 | // Make sure that you put a 330 ohm resistor between the arduino
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32 | // pins and each of the color pins on the LED.
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33 | int pinRed = 9;
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34 | int pinGreen = 6;
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35 | int pinBlue = 5;
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36 |
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37 | #ifdef ARDUINO_ARCH_AVR
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38 | #ifdef ARDUINO_AVR_YUN
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39 | #include "YunClient.h"
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40 | YunClient client;
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41 | #else
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42 |
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43 | #ifdef USE_WIFI_SHIELD
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44 | #include <SPI.h>
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45 | // ESP8266 USERS -- YOU MUST COMMENT OUT THE LINE BELOW. There's a bug in the Arduino IDE that causes it to not respect #ifdef when it comes to #includes
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46 | // If you get "multiple definition of `WiFi'" -- comment out the line below.
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47 | #include <WiFi.h>
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48 | char ssid[] = "<YOURNETWORK>"; // your network SSID (name)
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49 | char pass[] = "<YOURPASSWORD>"; // your network password
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50 | int status = WL_IDLE_STATUS;
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51 | WiFiClient client;
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52 | #else
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53 | // Use wired ethernet shield
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54 | #include <SPI.h>
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55 | #include <Ethernet.h>
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56 | byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
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57 | EthernetClient client;
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58 | #endif
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59 | #endif
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60 | #endif
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61 |
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62 | #ifdef ARDUINO_ARCH_ESP8266
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63 | #include <ESP8266WiFi.h>
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64 | char ssid[] = "<YOURNETWORK>"; // your network SSID (name)
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65 | char pass[] = "<YOURPASSWORD>"; // your network password
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66 | int status = WL_IDLE_STATUS;
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67 | WiFiClient client;
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68 | #endif
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69 |
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70 | #ifdef SPARK
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71 | TCPClient client;
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72 | #endif
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73 |
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74 |
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75 | /*
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76 | This is the ThingSpeak channel number for CheerLights
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77 | https://thingspeak.com/channels/1417. Field 1 contains a string with
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78 | the latest CheerLights color.
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79 | */
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80 | unsigned long cheerLightsChannelNumber = 1417;
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81 |
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82 | void setup() {
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83 | #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_ESP8266)
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84 | #ifdef ARDUINO_AVR_YUN
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85 | Bridge.begin();
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86 | #else
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87 | #if defined(USE_WIFI_SHIELD) || defined(ARDUINO_ARCH_ESP8266)
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88 | WiFi.begin(ssid, pass);
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89 | #else
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90 | Ethernet.begin(mac);
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91 | #endif
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92 | #endif
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93 | #endif
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94 |
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95 | ThingSpeak.begin(client);
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96 |
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97 | #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_ESP8266)
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98 | pinMode(pinRed,OUTPUT);
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99 | pinMode(pinGreen,OUTPUT);
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100 | pinMode(pinBlue,OUTPUT);
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101 | #endif
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102 | }
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103 |
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104 | void loop() {
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105 | // Read the latest value from field 1 of channel 1417
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106 | String color = ThingSpeak.readStringField(cheerLightsChannelNumber, 1);
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107 | setColor(color);
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108 |
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109 | // Check again in 5 seconds
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110 | delay(5000);
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111 | }
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112 |
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113 | // List of CheerLights color names
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114 | String colorName[] = {"none","red","pink","green","blue","cyan","white","warmwhite","oldlace","purple","magenta","yellow","orange"};
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115 |
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116 | // Map of RGB values for each of the Cheerlight color names
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117 | int colorRGB[][3] = { 0, 0, 0, // "none"
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118 | 255, 0, 0, // "red"
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119 | 255,192,203, // "pink"
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120 | 0,255, 0, // "green"
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121 | 0, 0,255, // "blue"
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122 | 0,255,255, // "cyan",
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123 | 255,255,255, // "white",
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124 | 255,223,223, // "warmwhite",
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125 | 255,223,223, // "oldlace",
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126 | 128, 0,128, // "purple",
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127 | 255, 0,255, // "magenta",
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128 | 255,255, 0, // "yellow",
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129 | 255,165, 0}; // "orange"};
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130 |
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131 | void setColor(String color)
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132 | {
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133 | // Look through the list of colors to find the one that was requested
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134 | for(int iColor = 0; iColor <= 12; iColor++)
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135 | {
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136 | if(color == colorName[iColor])
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137 | {
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138 | // When it matches, look up the RGB values for that color in the table,
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139 | // and write the red, green, and blue values.
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140 | #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_ESP8266)
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141 | analogWrite(pinRed,colorRGB[iColor][0]);
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142 | analogWrite(pinGreen,colorRGB[iColor][1]);
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143 | analogWrite(pinBlue,colorRGB[iColor][2]);
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144 | #endif
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145 | #ifdef SPARK
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146 | RGB.control(true);
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147 | RGB.color(colorRGB[iColor][0], colorRGB[iColor][1], colorRGB[iColor][2]);
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148 | #endif
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149 | return;
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150 | }
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151 | }
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152 | }
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