You'll need several Arduino plugins and libraries for this project to work, they include:
- ESP8266 core board support library (Learn more & download/install here)
- ThingSpeak Library (Learn more & download here) or load from within the Arduino IDE
- Adafruit Neopixel Library (Learn more & download here) or load from within the Arduino IDE
You can learn more about how to install libraries here if you're new to Arduino Libraries!
Once installed, the code is very straight forward. Sure, you'll need a basic understanding of Arduino, but it's nothing too complex! I've commented it fairly well, and wrote it so it can be easily modified. Once you made the simple circuit and installed the libraries, all you have to do is download the code below and make the following changes:
- Change the line of code "my_wifi_name" to your WiFi network name
- Change the line of code "my_wifi_password" to your WiFi password
That's it! Really! It's that simple to get up and running.
/*
Adafruit Feather HUZZAH & Neopixel Cheerlights by Marc de Vinck
CheerLights originally created by Hans Scharler
Lots of code borrowed from CheerLights & Adafruit
Adafruit HUZZAH - https://www.adafruit.com/products/2821
Adafruit Neopixels - https://www.adafruit.com/products/1312
Cheerlights - http://www.cheerlights.com
ThingSpeak - https://www.thingspeak.com
Project link - https://blog.adafruit.com/2016/05/06/feather-huzzah-neopixel-cheerlighs/
*/
#include <ESP8266WiFi.h> // Include the ESP8266 Library
#include "ThingSpeak.h" // Include the ThingSpeak library
#include <Adafruit_NeoPixel.h> // Include the adafruit Neopixel Library
#define PIN 4 // What pin is the data being sent to the Neopixels
#define NUMPIXELS 3 // How many Neopixels are you using?
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800); // Set up the Neopixels
int delayval = 500; // delay for half a second
WiFiClient client;
const char* ssid = "my_wifi_name"; // Enter your WiFi network name
const char* password = "my_wifi_password"; // Enter your WiFi password
const char* host = "api.thingspeak.com";
unsigned long cheerLightsChannelNumber = 1417; // The channel of Cheerlights
void setup() {
pixels.begin(); // Start up Neopixels
Serial.begin(115200); // Get ready for serial communications and display the connetion status
delay(100);
Serial.println();
Serial.println();
Serial.print("Connecting to WiFi network - ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
ThingSpeak.begin(client);
}
String colorName[] = {"none", "red", "pink", "green", "blue", "cyan", "white", "warmwhite", "oldlace", "purple", "magenta", "yellow", "orange", "1999"}; // List of CheerLights color names
int colorRGB[][3] = { 0, 0, 0, // "none" // Map of RGB values for each of the Cheerlight color names
255, 0, 0, // "red"
255, 192, 203, // "pink"
0, 255, 0, // "green"
0, 0, 255, // "blue"
0, 255, 255, // "cyan",
255, 255, 255, // "white",
255, 223, 223, // "warmwhite",
255, 223, 223, // "oldlace",
128, 0, 128, // "purple",
255, 0, 255, // "magenta",
255, 255, 0, // "yellow",
255,165, 0}; // "orange"};
128, 0, 128}; // "1999 Prince purple"
void loop() {
Serial.print("connecting to ");
Serial.println(host);
// Use WiFiClient class to create TCP connections
WiFiClient client;
const int httpPort = 80;
if (!client.connect(host, httpPort)) {
Serial.println("connection failed");
return;
}
// We now create a URI for the request
String url = "/channels/1417/field/1/last.json";
Serial.print("Requesting URL: ");
Serial.println(url);
// This will send the request to the server
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
delay(500); // Just a quick pause to let everything settle
String color = ThingSpeak.readStringField(cheerLightsChannelNumber, 1); //Read the Cheerlight color and print to the serial monitor
Serial.println(color);
setColor(color);
delay(18000);
}
void setColor(String color)
{
// Look through the list of colors to find the one that was requested
for (int iColor = 0; iColor <= 13; iColor++)
{
if (color == colorName[iColor])
{
pixels.setPixelColor(0, pixels.Color (colorRGB[iColor][0], colorRGB[iColor][1], colorRGB[iColor][2])); // set pixel 1 color (kept them seperate for easy hacking & understanding)
pixels.setPixelColor(1, pixels.Color (colorRGB[iColor][0], colorRGB[iColor][1], colorRGB[iColor][2])); // set pixel 2 color (kept them seperate for easy hacking & understanding)
pixels.setPixelColor(2, pixels.Color (colorRGB[iColor][0], colorRGB[iColor][1], colorRGB[iColor][2])); // set pixel 3 color (kept them seperate for easy hacking & understanding)
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
}
}
Text editor powered by tinymce.
