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simple Arduino based PROPELLER LED CLOCK. In this project we are going to design a Propeller Clock with Arduino, LEDs, Hall effect sensor, magnet and a DC motor. The project is designed to display a message and clock in a circular manner with the help of a string of 8 LED's rotating using a motor.
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_xAmEeOdpuB.png){kind=link}
//krishna
//message = "WELCOME" (active high LED)
unsigned long previousTime = 0;
byte hours = 12;
byte minutes = 45;
byte seconds = 00;
byte ch;
int sensor_pin = 8;
int input_state;
void setup()
{
DDRD = 0xFF;
pinMode(sensor_pin, INPUT);
}
void loop()
{
input_state = digitalRead(sensor_pin);
while (input_state != 0)
{
input_state = digitalRead(sensor_pin);
}
// display "WELCOME"
// letter 'W'
PORTD = 0x7e;
delay1(); //width of LED column
PORTD = 0x00;
delay1(); //width of blank column
PORTD = 0x01;
delay1(); //width of LED column
PORTD = 0x00;
delay1(); //width of blank column
PORTD = 0x0e;
delay1(); //width of LED column
PORTD = 0x00;
delay1(); //width of blank column
PORTD = 0x01;
delay1(); //width of LED column
PORTD = 0x00;
delay1(); //width of blank column
PORTD = 0x7e;
delay1(); //width of LED column
PORTD = 0x00;
delay1(); //width of blank column
delay2(); // one column gap between letters
// letter 'E'
PORTD = 0x7f;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x49;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x49;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x49;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
delay2(); // one column gap between letters
// letter 'L'
PORTD = 0x7f;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x01;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x01;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x01;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x01;
delay1();
PORTD = 0x00;
delay1();
delay2(); // one column gap between letters
// letter 'C'
PORTD = 0x3e;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x22;
delay1();
PORTD = 0x00;
delay1();
delay2(); // one column gap between letters
// letter 'O'
PORTD = 0x3e;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x3e;
delay1();
PORTD = 0x00;
delay1();
delay2(); // one column gap between letters
// letter 'M'
PORTD = 0x7f;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x20;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x18;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x20;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x7f;
delay1();
PORTD = 0x00;
delay1();
delay2(); // one column gap between letters
// letter 'E'
PORTD = 0x7f;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x49;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x49;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x49;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x41;
delay1();
PORTD = 0x00;
delay1();
//========================================
delay(15); // delay for gap between message and clock time
if (millis() >= (previousTime))
{
previousTime = previousTime + 1000;
seconds = seconds +1;
if (seconds == 60)
{
seconds = 0;
minutes = minutes +1;
}
if (minutes == 60)
{
minutes = 0;
hours = hours +1;
}
if (hours == 13)
{
hours = 1;
}
}
ch = seconds % 10;
display_ch();
delay1();
ch = seconds/10;
display_ch();
delay1();
ch = ':';
display_ch();
delay1();
ch = minutes % 10;
display_ch();
delay1();
ch = minutes/10;
display_ch();
delay1();
ch = ':';
display_ch();
delay1();
ch = hours % 10;
display_ch();
delay1();
ch = hours/10;
display_ch();
delay1();
}
void display_ch()
{
if(ch == 0)
{
PORTD = 0x7c;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x8a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0xa2;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x7c;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 1)
{
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x80;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0xfe;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x84;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 2)
{
PORTD = 0x8c;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0xa2;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0xc2;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x84;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 3)
{
PORTD = 0x62;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x96;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x8a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x82;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x42;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 4)
{
PORTD = 0x20;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0xfe;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x24;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x28;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x30;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 5)
{
PORTD = 0x7a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x8a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x8a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x8a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x4e;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 6)
{
PORTD = 0x60;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x94;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x78;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 7)
{
PORTD = 0x06;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x0a;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x12;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0xe2;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x02;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 8)
{
PORTD = 0x6c;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x6c;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == 9)
{
PORTD = 0x3c;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x52;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x92;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x0c;
delay1();
PORTD = 0x00;
delay1();
}
if(ch == ':')
{
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x6c;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x6c;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
PORTD = 0x00;
delay1();
}
}
void delay1()
{
delayMicroseconds(200);
}
void delay2()
{
delayMicroseconds(400);
}
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