Question

I am trying to start off with a empty array and then generate a random number patten using the following code but I seem to not be able to get it to work.

 int sequence = {};

 random(1, 4);

 for (int i=0; i <= 7; i++){
 sequence[i] = random(1, 4);
 } 

Answer 1

Arduino is based on C++.

int sequence[8];

// You must initialize the pseudo-random number generator
// You can get a "random seed" using analogRead(0) if this
// pin isn't been used and unplugged.
randomSeed(analogRead(0));

for (int i=0; i <= 7; i++){
    sequence[i] = random(1, 4);