Dann tue sie doch in die Funktion rein!
void readRainPixel(uint8_t site)
{
uint8_t rainPixel[12];
int8_t changer[4];
for(uint8_t i = 0; i < 4; i++)
{
for(uint8_t j = 0; j < 3; j++)
{
rainPixel[i * j] = 1 + i + j;
}
uint8_t upsite = 1;
changer[i] = upsite + i;
}
}