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#include <SPI.h>
#include <Thread.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);
const int redPin = 2;
const int greenPin = 4;
const int bluePin = 3;
int red = 0;
int rf = 0;
int rt = 255;
int green = 0;
int gf = 0;
int gt = 255;
int blue = 0;
int bf = 0;
int bt = 255;
void tests();
void red_thread();
bool r_rev = false;
void green_thread();
bool g_rev = false;
void blue_thread();
bool b_rev = false;
void draw_square(struct square *sq);
Thread r_fade = Thread();
Thread g_fade = Thread();
Thread b_fade = Thread();
struct square {
int x1; // top left
int x2; // top right
int x3; // bottom left
int x4; //bottom right
int y1; //top left
int y2; // top right
int y3; // bottom left
int y4; // bottom right
};
struct square sq1;
struct square sq2;
void parse(String com);
void OledWrite(int x, int y, int size, String text) { // this function will write to our oled
display.setTextSize(size); // set the font size
display.setTextColor(WHITE); // set the font color
display.setCursor(x, y); // set the cursor position
display.println(text); // add our text to the oled buffer
display.display();
}
void setup()
{
sq1.x1 = 0;
sq1.x2 = 30;
sq1.x3 = 0;
sq1.x4 = 30;
sq1.y1 = 0;
sq1.y2 = 0;
sq1.y3 = 30;
sq1.y4 = 30;
sq2.x1 = 60;
sq2.x2 = 90;
sq2.x3 = 60;
sq2.x4 = 90;
sq2.y1 = 0;
sq2.y2 = 0;
sq2.y3 = 30;
sq2.y4 = 30;
display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // lets begin our oled display/connection
display.clearDisplay(); // clear oled display from anything left over from last session
Serial.begin(9600);
pinMode(redPin, OUTPUT);
pinMode(greenPin, OUTPUT);
pinMode(bluePin, OUTPUT);
r_fade.enabled = false;
r_fade.onRun(red_thread);
r_fade.setInterval(10);
g_fade.enabled = false;
g_fade.onRun(green_thread);
g_fade.setInterval(10);
b_fade.enabled = false;
b_fade.onRun(blue_thread);
b_fade.setInterval(10);
}
void red_thread()
{
if (red < rf)
red = rf;
if (red > rt)
red = rf;
if (red == rt)
r_rev = true;
if (red == rf)
r_rev = false;
if (!r_rev)
red++;analogWrite(redPin, red);
if (r_rev)
red--;analogWrite(redPin, red);
}
void green_thread()
{
if (red < rf)
green = gf;
if (green > gt)
green = gf;
if (green == gt)
g_rev = true;
if (green == gf)
g_rev = false;
if (!g_rev)
green++;analogWrite(greenPin, green);
if (g_rev)
green--;analogWrite(greenPin, green);
}
void blue_thread()
{
if (blue < bf)
red = bf;
if (blue > bt)
blue = bf;
if (blue == bt)
b_rev = true;
if (blue == bf)
b_rev = false;
if (!b_rev)
blue++;analogWrite(bluePin, blue);
if (b_rev)
blue--;analogWrite(bluePin, blue);
}
void parse(String com)
{
String p1;
String p2;
p1 = com.substring(0, com.indexOf("="));
p2 = com.substring(com.indexOf("=") + 1);
if (p1.equalsIgnoreCase("red"))
{
red = p2.toInt();
analogWrite(redPin, red);
}
if (p1.equalsIgnoreCase("green"))
{
green = p2.toInt();
analogWrite(greenPin, green);
}
if (p1.equalsIgnoreCase("blue"))
{
blue = p2.toInt();
analogWrite(bluePin, blue);
}
if (p1.equalsIgnoreCase("redfade"))
{
if (r_fade.enabled)
r_fade.enabled = false;
else if (!r_fade.enabled)
r_fade.enabled = true;
}
if (p1.equalsIgnoreCase("greenfade"))
{
if (g_fade.enabled)
g_fade.enabled = false;
else if (!g_fade.enabled)
g_fade.enabled = true;
}
if (p1.equalsIgnoreCase("bluefade"))
{
if (b_fade.enabled)
b_fade.enabled = false;
else if (!b_fade.enabled)
b_fade.enabled = true;
}
if (p1.equalsIgnoreCase("rspeed"))
{
r_fade.setInterval(p2.toInt());
}
if (p1.equalsIgnoreCase("gspeed"))
{
g_fade.setInterval(p2.toInt());
}
if (p1.equalsIgnoreCase("bspeed"))
{
b_fade.setInterval(p2.toInt());
}
if (p1.equalsIgnoreCase("speed"))
{
r_fade.setInterval(p2.toInt());
g_fade.setInterval(p2.toInt());
b_fade.setInterval(p2.toInt());
}
if (p1.equalsIgnoreCase("rf"))
rf = p2.toInt();
if (p1.equalsIgnoreCase("rt"))
rt = p2.toInt();
if (p1.equalsIgnoreCase("gf"))
gf = p2.toInt();
if (p1.equalsIgnoreCase("gt"))
gt = p2.toInt();
if (p1.equalsIgnoreCase("bf"))
bf = p2.toInt();
if (p1.equalsIgnoreCase("bt"))
bt = p2.toInt();
if (p1.equalsIgnoreCase("ping"))
Serial.write("ping=pong\n");
if (p1.equalsIgnoreCase("write"))
{
display.clearDisplay();
OledWrite(0, 0, 3, p2);
}
if (p1.equalsIgnoreCase("off"))
{
red = 0;
green = 0;
blue = 0;
r_fade.enabled = false;
g_fade.enabled = false;
b_fade.enabled = false;
analogWrite(redPin, red);
analogWrite(greenPin, green);
analogWrite(bluePin, blue);
}
}
String line;
void loop()
{
if (r_fade.shouldRun())
r_fade.run();
if (g_fade.shouldRun())
g_fade.run();
if (b_fade.shouldRun())
b_fade.run();
/* read serial data */
while (Serial.available())
{
char c = Serial.read();
if (c == '\n')
{
parse(line);
line = "";
}
else
{
line += c;
}
}
tests();
}
void tests()
{
display.clearDisplay();
draw_square(&sq1);
draw_square(&sq2);
display.display();
}
void draw_square(struct square *sq)
{
/* top left -> top right */
display.drawLine(sq->x2, sq->y1, sq->x1, sq->y2, WHITE);
/* top right -> bottom right */
display.drawLine(sq->x2, sq->y2, sq->x4, sq->y4, WHITE);
/* bottom right -> bottom left */
display.drawLine(sq->x4, sq->y4, sq->x3, sq->y3, WHITE);
/* bottom left -> top left */
display.drawLine(sq->x3, sq->y3, sq->x1, sq->y1, WHITE);
}
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