The Nick Kamm Blog

Download Code: https://github.com/nickkamm/Arduino-Serial-TX-RX

Sending Code

int x = 249;
int y = 0;
void setup() {
Serial.begin(9600);
}

void loop() {

while(x < 255){
x = x + 1; // counts up
y = y + 1;

Serial.write(x); // x is sent first, acceptable range: 250-255 to set channel. Must be sent first.
Serial.write(y); // y is channel value, acceptable range: 0-249;
delay(100);

if(x == 255){ // code to reset count
x = 249;
delay(200);
}
if(y == 249){ // code to reset count
y = 0;
}
}
}