Improved ESP8266 WifiServer for RGB ribbon. Added option for color cycling and persistent storage in eeprom. Added command to retreive current values.
This commit is contained in:
Nis Boerge Wechselberg
parent
bece994f1b
commit
587a7ed304
1 changed files with 171 additions and 75 deletions
|
|
@ -26,20 +26,39 @@
|
|||
* ESP8266-RGB-WiFiServer
|
||||
* Sets the color of an RGB LED Ribbon through an HTTP Server
|
||||
********************************************************************************/
|
||||
#include <EEPROM.h>
|
||||
#include <ESP8266WiFi.h>
|
||||
#include "ESP8266-RGB-WiFiServer.h"
|
||||
|
||||
// Pin configuration
|
||||
const int redPin = 12;
|
||||
const int greenPin = 13;
|
||||
const int bluePin = 14;
|
||||
const short redPin = 12;
|
||||
const short greenPin = 13;
|
||||
const short bluePin = 14;
|
||||
|
||||
// EEPROM Adress config
|
||||
const unsigned char modeAddress = 0;
|
||||
const unsigned char redAddress = 1;
|
||||
const unsigned char greenAddress = 2;
|
||||
const unsigned char blueAddress = 3;
|
||||
|
||||
// Color values
|
||||
unsigned char modeValue;
|
||||
unsigned char redValue;
|
||||
unsigned char greenValue;
|
||||
unsigned char blueValue;
|
||||
unsigned char decColor;
|
||||
|
||||
// Scale factors
|
||||
float globalScale = 3.0;
|
||||
float redScale = 1.0;
|
||||
float greenScale = 1.0;
|
||||
float blueScale = 0.7;
|
||||
|
||||
// HTTP configuration
|
||||
const unsigned char port = 80;
|
||||
|
||||
// Create an instance of the server
|
||||
WiFiServer server(port);
|
||||
|
||||
|
||||
void setup() {
|
||||
// Initialize Serial connection
|
||||
Serial.begin(115200);
|
||||
|
|
@ -55,9 +74,7 @@ void setup() {
|
|||
Serial.println();
|
||||
Serial.print("Connecting to ");
|
||||
Serial.println(ssid);
|
||||
|
||||
WiFi.begin(ssid, password);
|
||||
|
||||
while (WiFi.status() != WL_CONNECTED) {
|
||||
delay(500);
|
||||
Serial.print(".");
|
||||
|
|
@ -67,34 +84,34 @@ void setup() {
|
|||
|
||||
// Start the server
|
||||
server.begin();
|
||||
Serial.println("Server started");
|
||||
|
||||
Serial.print("Server started at IP address ");
|
||||
// Print the IP address
|
||||
Serial.println(WiFi.localIP());
|
||||
|
||||
// Read stored mode and previous color values from EEPROM
|
||||
EEPROM.begin(16);
|
||||
readFromEEPROM();
|
||||
|
||||
// Test the LED color channels
|
||||
setColourRgb(0,0,0);
|
||||
setLight(0,0,0);
|
||||
delay(500);
|
||||
setColourRgb(200,0,0);
|
||||
setLight(100,0,0);
|
||||
delay(500);
|
||||
setColourRgb(0,200,0);
|
||||
setLight(0,100,0);
|
||||
delay(500);
|
||||
setColourRgb(0,0,200);
|
||||
setLight(0,0,100);
|
||||
delay(500);
|
||||
setColourRgb(200,200,200);
|
||||
setLight(100,100,100);
|
||||
delay(500);
|
||||
setColourRgb(0,0,0);
|
||||
updateLight();
|
||||
}
|
||||
|
||||
void loop() {
|
||||
// Check if a client has connected
|
||||
WiFiClient client = server.available();
|
||||
if (!client) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (client) {
|
||||
// Wait until the client sends some data
|
||||
Serial.println("new client");
|
||||
Serial.println("Client connected");
|
||||
while(!client.available()){
|
||||
delay(1);
|
||||
}
|
||||
|
|
@ -104,59 +121,138 @@ void loop() {
|
|||
Serial.println(req);
|
||||
client.flush();
|
||||
|
||||
// Match the request
|
||||
if (req.indexOf("/gpio/rgb/") != -1) {
|
||||
// Request of the form "/gpio/rgb/red/green/blue/"
|
||||
// Delimiters for pwm values
|
||||
int br, er, eg, eb;
|
||||
br = req.indexOf("/gpio/rgb/") + 10;
|
||||
er = req.indexOf("/",br+1);
|
||||
eg = req.indexOf("/",er+1);
|
||||
eb = req.indexOf("/",eg+1);
|
||||
// Check if new value should be set or values should be read
|
||||
if (req.indexOf("/set/") != -1) {
|
||||
// Request of the form "/set/mode/red/green/blue/"
|
||||
// Delimiters for values
|
||||
int indexMode, indexRed, indexGreen, indexBlue, endIndexBlue;
|
||||
indexMode = req.indexOf("/set/") + 5;
|
||||
indexRed = req.indexOf("/",indexMode + 1);
|
||||
indexGreen = req.indexOf("/",indexRed + 1);
|
||||
indexBlue = req.indexOf("/",indexGreen + 1);
|
||||
endIndexBlue = req.indexOf("/",indexBlue + 1);
|
||||
// Check if all values were filled in the request
|
||||
if (br == -1 || er == -1 || eg == -1 || eb == -1) {
|
||||
if (indexMode == -1 || indexRed == -1 || indexGreen == -1
|
||||
|| indexBlue == -1 || endIndexBlue == -1) {
|
||||
// Invalid request, abort
|
||||
Serial.println("Invalid request");
|
||||
client.stop();
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
// Parse values in request
|
||||
int red = req.substring(br,er).toInt();
|
||||
int green = req.substring(er+1,eg).toInt();
|
||||
int blue = req.substring(eg+1,eb).toInt();
|
||||
int mode = req.substring(indexMode, indexRed).toInt();
|
||||
int red = req.substring(indexRed + 1, indexGreen).toInt();
|
||||
int green = req.substring(indexGreen + 1, indexBlue).toInt();
|
||||
int blue = req.substring(indexBlue + 1, endIndexBlue).toInt();
|
||||
|
||||
// Sanitize values
|
||||
if (mode < 0) { mode = 0; }
|
||||
if (red < 0) { red = 0; }
|
||||
if (green < 0) { green = 0; }
|
||||
if (blue < 0) { blue = 0; }
|
||||
if (red > 1023) { red = 1023; }
|
||||
if (green > 1023) { green = 1023; }
|
||||
if (blue > 1023) { blue = 1023; }
|
||||
if (mode > 1) { mode = 1; }
|
||||
if (red > 255) { red = 255; }
|
||||
if (green > 255) { green = 255; }
|
||||
if (blue > 255) { blue = 255; }
|
||||
|
||||
// Update values
|
||||
modeValue = mode;
|
||||
if (mode == 1) {
|
||||
decColor = 0;
|
||||
redValue = 255;
|
||||
greenValue = 0;
|
||||
blueValue = 0;
|
||||
} else {
|
||||
redValue = red;
|
||||
greenValue = green;
|
||||
blueValue = blue;
|
||||
}
|
||||
persistToEEPROM();
|
||||
}
|
||||
} else if (req.indexOf("/get/") != -1) {
|
||||
|
||||
// Apply colors
|
||||
setColourRgb(red, green, blue);
|
||||
} else {
|
||||
Serial.println("invalid request");
|
||||
client.stop();
|
||||
return;
|
||||
}
|
||||
|
||||
client.flush();
|
||||
|
||||
// Prepare the response
|
||||
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\nOK</html>\n";
|
||||
String response = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n";
|
||||
response += modeValue;
|
||||
response += "\n";
|
||||
response += redValue;
|
||||
response += "\n";
|
||||
response += greenValue;
|
||||
response += "\n";
|
||||
response += blueValue;
|
||||
response += "\n";
|
||||
|
||||
// Send the response to the client
|
||||
client.print(s);
|
||||
client.print(response);
|
||||
delay(1);
|
||||
|
||||
client.flush();
|
||||
Serial.println("Disconnecting client");
|
||||
// The client will actually be disconnected
|
||||
// when the function returns and 'client' object is detroyed
|
||||
}
|
||||
|
||||
updateLight();
|
||||
|
||||
}
|
||||
|
||||
void updateLight() {
|
||||
if (modeValue == 0) {
|
||||
// Normal static color mode
|
||||
} else if (modeValue == 1) {
|
||||
// Color cylce mode
|
||||
unsigned short rgbColor[3];
|
||||
rgbColor[0] = redValue;
|
||||
rgbColor[1] = greenValue;
|
||||
rgbColor[2] = blueValue;
|
||||
|
||||
unsigned short incColor = (decColor + 1) % 3;
|
||||
|
||||
rgbColor[decColor] -= 1;
|
||||
rgbColor[incColor] += 1;
|
||||
|
||||
redValue = rgbColor[0];
|
||||
greenValue = rgbColor[1];
|
||||
blueValue = rgbColor[2];
|
||||
|
||||
if (rgbColor[incColor] == 255) {
|
||||
decColor = incColor;
|
||||
}
|
||||
}
|
||||
setLight(redValue, greenValue, blueValue);
|
||||
delay(15);
|
||||
}
|
||||
|
||||
/* Helper function to set the colors of the led strip */
|
||||
void setColourRgb(unsigned int red, unsigned int green, unsigned int blue) {
|
||||
analogWrite(redPin, red);
|
||||
analogWrite(greenPin, green);
|
||||
analogWrite(bluePin, blue);
|
||||
void setLight(unsigned char red, unsigned char green, unsigned char blue) {
|
||||
analogWrite(redPin, red * globalScale * redScale);
|
||||
analogWrite(greenPin, green * globalScale * greenScale);
|
||||
analogWrite(bluePin, blue * globalScale * blueScale);
|
||||
}
|
||||
|
||||
void readFromEEPROM() {
|
||||
unsigned char newMode = EEPROM.read(modeAddress);
|
||||
if (newMode > 1) {
|
||||
// Uninitialized cells return 255, so reset that
|
||||
modeValue = 0;
|
||||
} else {
|
||||
modeValue = newMode;
|
||||
}
|
||||
redValue = EEPROM.read(redAddress);
|
||||
greenValue = EEPROM.read(greenAddress);
|
||||
blueValue = EEPROM.read(blueAddress);
|
||||
}
|
||||
|
||||
void persistToEEPROM() {
|
||||
EEPROM.write(modeAddress, modeValue);
|
||||
EEPROM.write(redAddress, redValue);
|
||||
EEPROM.write(greenAddress, greenValue);
|
||||
EEPROM.write(blueAddress, blueValue);
|
||||
EEPROM.commit();
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue