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Commit 649af4b6 authored by Mitchell Pomery's avatar Mitchell Pomery
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Comments Everywhere 

And a couple of helper functions
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BlinkenLights.ino
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......@@ -14,20 +14,22 @@
///TODO: Make run when no network is present
///TODO: Recover when network reappears
///TODO: Make everything use posts. maybe
///TODO: Sanity checks. Everywhere. Until I'm Insane.
///TODO: Figure out memory usage. If we max memory we will see weird behaviour.
#include <Ethernet.h> // Needed For Reasons
#include <WebServer.h> // Lets us easily do web requests
#include <SPI.h> // Needed to control Lights
#include <Adafruit_NeoPixel.h> // Controls the Lights
#define STRIPLENGTH 42 // Number of LED's in light strip
#define PIN 6 // Pin that the LED strip is attached to
#define PREFIX "" // Document root for our pages
#define PORT 80 // Web Server Port
#define NAMELEN 8 // Max variable length in request
#define VALUELEN 256 // Max value from request
#define WIDTH // How many LEDs wide our array is
#define HEIGHT // How many LEDs high our array is
#define WIDTH 7 // How many LEDs wide our array is
#define HEIGHT 6 // How many LEDs high our array is
#define STRIPLENGTH 42 // Number of LED's in light strip
// Used to store the LED's values
struct led {
......@@ -36,33 +38,61 @@ struct led {
char blue;
};
// For controlling the lights
// For controlling the lights - Should only be changed by the functions
int position = 0; // How far through the cycle we are
struct led ledArray[STRIPLENGTH]; // led array
int lightOption = 0; // Which predefined light sequence we are running
char brightness = (char) 128; //Brightness of the LEDs
// We seem to have issues at the moment putting this up to the maximum (255)
// Most likely due to the fact the LED strip is underpowered
int lightOption = 0; // Which predefined light sequence we are running
// Network Settings
static uint8_t mac[] = { 0xC0, 0xCA, 0xC0, 0x1A, 0x19, 0x82 }; // C0CA C01A 1982
IPAddress ip(130,95,13,96); // 130.95.13.96 (Can we forcefully take .82?
// If we remove the ip address, we will automatically use DHCP
// Set up our light strip
Adafruit_NeoPixel strip = Adafruit_NeoPixel(STRIPLENGTH, PIN, NEO_GRB + NEO_KHZ800);
// Set up our webserver
WebServer webserver(PREFIX, 80);
// ============================ LIGHT MANIPULATION ============================
/**
* Change the lights to our updated array
* We should probably get rid of this soonish
*/
void showArray() {
///TODO: Rename this to something better?
for (int i = 0; i < STRIPLENGTH; i ++) {
strip.setPixelColor(i, (int) ledArray[i].red, (int) ledArray[i].green, (int) ledArray[i].blue);
}
strip.show();
}
/**
* Set the LED at pos in the strip to the defined color
* @param xpos x coordinate
* @param ypos y cordinate
* @return position in the array
*/
int coordToPos(int xpos, int ypos) {
///TODO: Test this function
int pos = 0;
if (ypos % 2 == 0) { // if we are on an even line, add y
pos = ypos * WIDTH + xpos;
}
else { // on an odd line, take y
if (WIDTH % 2 == 0) { // even width
pos = ypos * WIDTH + HEIGHT - xpos;
}
else { // odd width
pos = ypos * WIDTH + HEIGHT - xpos -1;
}
}
return pos;
}
/**
* Set the LED at pos in the strip to the defined color
* @param pos position in the array
......@@ -77,38 +107,45 @@ void setLED(int pos, int red, int green, int blue) {
}
/**
* Set the LED at pos in the strip to the defined color
* @param pos position in the array
* Set the LED at (xpos, ypos) in the strip to the defined color
* @param xpos x coordinate
* @param ypos y coordinate
* @param red red portion of color
* @param green green portion of color
* @param blue blue portion of color
*/
void setLED(int xpos, int yxpos, int red, int green, int blue) {
///TODO: Test this function
int pos = 0;
if (ypos % 2 == 0) { // if we are on an even line, add y
pos = ypos * WIDTH + xpos;
}
else { // on an odd line, take y
if (WIDTH % 2 == 0) { // even width
pos = ypos * WIDTH + HEIGHT - xpos;
}
else { // odd width
pos = ypos * WIDTH + HEIGHT - xpos -1;
}
}
void setLED(int xpos, int ypos, int red, int green, int blue) {
int pos = coordToPos(xpos, ypos);
setLED(pos, red, green, blue);
}
/**
* Get the color of the LED at pos in the strip
* @param pos position in the array
* Get the colour of the LED in pos position in the strip
* @param pos position in the strip
* @return color of LED at pos
*/
struct led getLED(int pos) {
return ledArray[pos];
}
/**
* Get the colour of the LED at (xpos, ypos)
* @param xpos x coordinate
* @param ypos y coordinate
* @return color of LED at (xpos, ypos)
*/
struct led getLED(int xpos, int ypos) {
int pos = coordToPos(xpos, ypos);
return ledArray[pos];
}
// ================================ WEB PAGES ================================
///TODO: Comment this stuff
///TODO: Reduce code reuse in the web page functions
///TODO: Start using post requests
///TODO: Make a function to set all the lights at once
// Sets the light sequence to one that is predefined
void webSetSequence(WebServer &server, WebServer::ConnectionType type, char *url_tail, bool tail_complete) {
URLPARAM_RESULT rc;
......@@ -116,7 +153,7 @@ void webSetSequence(WebServer &server, WebServer::ConnectionType type, char *url
char value[VALUELEN];
server.httpSuccess();
// Kill the connection before doing anything if all they want is the head
// Kill the connection before doing anything if all they want is head
if (type == WebServer::HEAD) {
return;
}
......@@ -149,7 +186,7 @@ void webSetLED(WebServer &server, WebServer::ConnectionType type, char *url_tail
int b = -1;
server.httpSuccess();
// Kill the connection before doing anything if all they want is the head
// Kill the connection before doing anything if all they want is head
if (type == WebServer::HEAD) {
return;
}
......@@ -180,13 +217,6 @@ void webSetLED(WebServer &server, WebServer::ConnectionType type, char *url_tail
else {
server.print("Unknown");
}
//server.print(xPos);
//server.print(yPos);
//server.print(r);
//server.print(g);
//server.print(b);
if (xPos != -1 && yPos != -1 && r != -1 && g != -1 && b != -1) {
setLED(xPos, r, g, b);
}
......@@ -198,7 +228,7 @@ void webSetBrightness(WebServer &server, WebServer::ConnectionType type, char *u
char value[VALUELEN];
server.httpSuccess();
// Kill the connection before doing anything if all they want is the head
// Kill the connection before doing anything if all they want is head
if (type == WebServer::HEAD) {
return;
}
......@@ -207,8 +237,6 @@ void webSetBrightness(WebServer &server, WebServer::ConnectionType type, char *u
while (strlen(url_tail)) {
rc = server.nextURLparam(&url_tail, name, NAMELEN, value, VALUELEN);
if (rc != URLPARAM_EOS) {
//Serial.println(name);
//Serial.println(value);
if (String(name).equals("bright")) {
strip.setBrightness(atoi(value));
server.print(atoi(value));
......@@ -223,6 +251,11 @@ void webSetBrightness(WebServer &server, WebServer::ConnectionType type, char *u
}
}
// ============================== LIGHT DISPLAYS ==============================
///TODO: Comment this stuff
///TODO: Make sure these functions don't block. Otherwise web requests are slow
// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
for(uint16_t i=0; i<strip.numPixels(); i++) {
......@@ -256,37 +289,38 @@ void rainbowCycle(uint8_t wait) {
}
}
//Theatre-style crawling lights.
// Theatre-style crawling lights.
void theaterChase(uint32_t c, uint8_t wait) {
for (int j=0; j<10; j++) { //do 10 cycles of chasing
for (int j=0; j<10; j++) { // do 10 cycles of chasing
for (int q=0; q < 3; q++) {
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, c); //turn every third pixel on
strip.setPixelColor(i+q, c); // turn every third pixel on
}
strip.show();
delay(wait);
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
strip.setPixelColor(i+q, 0); // turn every third pixel off
}
}
}
}
//Theatre-style crawling lights with rainbow effect
// Theatre-style crawling lights with rainbow effect
void theaterChaseRainbow(uint8_t wait) {
for (int j=0; j < 256; j++) { // cycle all 256 colors in the wheel
for (int j=0; j < 256; j++) { // cycle all 256 colors in the wheel
for (int q=0; q < 3; q++) {
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel on
// turn every third pixel on
strip.setPixelColor(i+q, Wheel( (i+j) % 255));
}
strip.show();
delay(wait);
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
strip.setPixelColor(i+q, 0); // turn every third pixel off
}
}
}
......@@ -306,31 +340,19 @@ uint32_t Wheel(byte WheelPos) {
}
}
// =============================== MAIN PROGRAM ===============================
void setup() {
// Open //Serial communications and wait for port to open:
//Serial.begin(9600);
//while (!//Serial) {
//; // wait for //Serial port to connect. Needed for Leonardo only
//}
//Serial.println("//Serial Port Opened");
// start the Ethernet connection and the server:
//Serial.println("Starting Ethernet");
// Start Ethernet
Ethernet.begin(mac, ip);
//Serial.println("Setting Up Server");
// Set up webpages
webserver.setDefaultCommand(&webSetSequence);
webserver.addCommand("custom", &webSetSequence);
webserver.addCommand("individual", &webSetLED);
webserver.addCommand("brightness", &webSetBrightness);
//Serial.println("Starting Server");
// Start Webserver
webserver.begin();
//Serial.print("server is at ");
//Serial.println(Ethernet.localIP());
// Initialize our LED Array
// Turn our lights on
for (int i = 0; i < STRIPLENGTH; i ++) {
ledArray[i].red = (char) 128;
ledArray[i].green = (char) 128;
......@@ -339,7 +361,6 @@ void setup() {
// Start Lights
strip.begin();
//strip.show();
strip.setBrightness(128);
showArray();
}
......@@ -351,7 +372,6 @@ void loop()
int len = 64;
webserver.processConnection(buff, &len);
position = position % 256;
//rainbow(10);
// Run our light sequence after checking for we requests
switch (lightOption) {
case 0: // Don't change the lights at all
......@@ -363,6 +383,6 @@ void loop()
lightOption = 1;
break;
}
// Show our lights
showArray();
}
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