Algo assim?
const int botao1 = 3, botao2 = 4; //uns pinos...
const int leds[] = {5,6,7,8,9,10,11}; //pinos para ligar os leds
setup() {
for (int i = 0; i <7; i ++) {
pinMode(leds[i], OUTPUT);
}
pinMode(botao1, INPUT);
pinMode(botao2, INPUT);
}
loop(){
if (digitalRead(botao1) == HIGH) {
//sequencia 1
for (int i=0; i <= 7; i++) {
digitalWrite(leds[i], HIGH);
delay(1000);
}//end for
}//end if
if (digitalRead(botao2) == HIGH) {
//sequencia 1
for (int i=7; i >= 0; i--) {
digitalWrite(leds[i], LOW);
delay(1000);
}//end for
}//end if
}