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AN #137 - Valentine Heart Print
Valentine Heart

This AN is written by Roland van Leusden.  It is a great gift for Valentine's day.

Support

Roland can be reached via his homepage

 


This is a small project easy to make on a rainy Sunday.   It is using the Atmel AT90S2313 uC , with a 4Mhz X-tal and 2 x 22pF capacitor. Every I/O pin has a led connected with 150 Ohm resistor in series to Vcc the Powersupply
Decoupling is done with a 100nF & 10uF (tantaal) capacitor
Reset is connected with a 47K resistor to Vcc
The PCB is shown 200% enlarged. PCB in Traxmaker format here.   Source code written in Bascom is here. Only 47% of the available 2Kb is used, so there is enough room for adding more effects.

The source code is show here :

' Valentines Heart  '
' Leds connected to Vcc with 150 Ohm to Portb & Portd '
' Portb.x = 0 -> Led on Portb.x = 1 -> Led off '
' Portd.x = 0 -> Led on Portd.x = 1 -> Led off '
'  '
' By Roland van leusden 2005 '
' '


$regfile = "2313def.dat"
$crystal = 4000000

Portb = &B1111_1111
Ddrb = &B1111_1111

Portd = &B1111_1111
Ddrd = &B1111_1111

Dim Jump As Byte
Dim Slow As Byte

Do

Jump
= 0 ' Leave led on '
Slow
= 1 ' slow = 1 500ms delay '
Gosub All_on
Gosub All_off
Gosub All_on
Gosub All_off
Gosub All_on
Gosub All_off
Gosub Rotate_clock
Gosub All_off
Gosub Rotate_anti_clock
Gosub All_off
Jump
= 1 ' Jump from led to led '
Gosub Rotate_clock
Gosub All_off
Gosub All_on
Gosub All_off
Gosub Rotate_anti_clock
Gosub All_off
Gosub All_on
Gosub All_off
Slow
= 0 ' slow = 0 250ms delay '
Gosub Rotate_clock
Gosub All_off
Gosub Rotate_clock
Gosub All_off
Slow
= 1
Jump
= 0
Gosub Top2bottom
Gosub All_off
Gosub All_on
Gosub All_off
Gosub Bottom2top
Gosub All_off
Gosub All_on
Gosub All_off
Slow
= 0
Gosub Top2bottom
Gosub All_off
Gosub Bottom2top
Gosub All_off
Slow
= 1
Jump
= 1
Gosub Top2bottom
Gosub All_off
Gosub All_on
Gosub All_off
Gosub Bottom2top
Jump
= 0
Gosub All_on
Gosub Die
Gosub Left2right
Gosub All_off
Gosub All_on
Gosub All_off
Gosub Right2left
Gosub All_off
Gosub Rotate_clock
Gosub All_off
Gosub Rotate_clock
Gosub All_off

Loop

' Subroutines '

Delay_250ms
:

Waitms 250

Return

All_off
:
 
Portb = &B1111_1111
 
Portd = &B1111_1111
 
Gosub Delay_250ms
 
Gosub Go_slow
Return

All_on
:
 
Portb = &B0000_0000
 
Portd = &B0000_0000
 
Gosub Delay_250ms
 
Gosub Go_slow
Return

Rotate_clock
:
 
Portb.7 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump
Return

Rotate_anti_clock
:

 
Portd.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portd.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.7 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump
Return

Bottom2top
:

 
Portb.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.1 = 0
 
Portd.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.2 = 0
 
Portd.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.3 = 0
 
Portd.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.4 = 0
 
Portd.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.5 = 0
 
Portd.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.6 = 0
 
Portd.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.7 = 0
 
Portd.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump
Return

Top2bottom
:

 
Portb.7 = 0
 
Portd.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.6 = 0
 
Portd.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.5 = 0
 
Portd.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.4 = 0
 
Portd.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.3 = 0
 
Portd.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.2 = 0
 
Portd.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.1 = 0
 
Portd.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump

 
Portb.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
 
Gosub Check_jump
Return

Die
:

Portb.7 = 1
 
Portd.0 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.6 = 1
 
Portd.1 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.5 = 1
 
Portd.2 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.4 = 1
 
Portd.3 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.3 = 1
 
Portd.4 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.2 = 1
 
Portd.5 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.1 = 1
 
Portd.6 = 1
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.0 = 1
Return

Left2right
:

 
Portb.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.5 = 0
 
Portb.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.6 = 0
 
Portb.2 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.7 = 0
 
Portb.1 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.0 = 0
 
Portd.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.1 = 0
 
Portd.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.2 = 0
 
Portd.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
Return

Right2left
:

 
Portd.3 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.2 = 0
 
Portd.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.1 = 0
 
Portd.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portd.0 = 0
 
Portd.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.0 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.1 = 0
 
Portb.7 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.2 = 0
 
Portb.6 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.3 = 0
 
Portb.5 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow

 
Portb.4 = 0
 
Gosub Delay_250ms
 
Gosub Go_slow
Return

Check_jump
:

 
If Jump = 1 Then
 
Gosub All_off
 
End If
Return

Go_slow
:

If Slow = 1 Then
 
Gosub Delay_250ms
 
End If
Return