Dear Community,
i think it is a little bit hard to understand the function of the rainbowduino.
But Seedstudio says that rainbowduino sells like hot cake.
So there must be a lot of people which make use of rainbowduino.
I searched nearly the whole internet for informationgathering, but
it looks a little bit less.
In the Documentation there are some (5 Commands) as Host Sample API.
Is somebody here who has expanded the abilities of Rainbowduino I2C ?
What I want to do ist something like "SetPixel (x,y,r,g,b);".
I thought asking is the first step... i will do my best to get it work, but if you already have such a function... then please post it here....
Thank you!
ChrisS
Dear Community,
i've found an example for controlling RGB Strips instead of Led-Matrix.
Looks simple.
#include "Rainbow.h"
unsigned char NumTab[10]=
{
0x77,0x06,0x5b,0x1f,0x2e,0x3d,0x7d,0x17,0x7f,0x3f
};
void setup()
{
_init();
close_all_line
open_all_line
}
void loop()
{
int i;
for(i=0;i<10;i++)
{
shift_24_bit(NumTab[i],0,0);
delay(500);
}
}
void _init(void) // define the pin mode
{
DDRD=0xff;
DDRC=0xff;
DDRB=0xff;
PORTD=0;
PORTB=0;
}
void shift_1_bit(unsigned char LS)
{
if(LS) shift_data_1;
else shift_data_0;
clk_rising;
}
void shift_24_bit(int Red,int Green,int Blue)
{
unsigned char i;
le_high;
for (i=0;i<8;i++)
{
if ((Green<<i)&0x80) shift_1_bit(1);
else shift_1_bit(0);
}
for (i=0;i<8;i++)
{
if ((Red<<i)&0x80) shift_1_bit(1);
else shift_1_bit(0);
}
for (i=0;i<8;i++)
{
if ((Blue<<i)&0x80) shift_1_bit(1);
else shift_1_bit(0);
}
le_low;
}
The sketch controls 7 Strips like a 7-Segment Display.
Digits 0 - 9 where displayed.
On Top of the Sketch there is an array of 10 hex codes... i think that are the codes of displaying the digits.
But I don't understand that Hex-Values.
Would it be please possible to explain me what happening there.
Thank you und Greetings
ChrisS