blob: 14acb283a8d86f59f86fe9a7b6ba8bcef4f1308b (
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void setup() {
for (int i = 0; i < 8; ++i) pinMode(i, OUTPUT);
analogReadResolution(8);
}
void loop() {
int len = 0;
int seq[1000];
while (1) {
seq[len++] = random(0, 4);
for (int i = 0; i < len; ++i) {
digitalWrite(seq[i]<<1|1, HIGH);
delay(500);
digitalWrite(seq[i]<<1|1, LOW);
delay(500);
}
for (int i = 0; i < len; ++i) {
while (analogRead(A0) < 240 && analogRead(A1) < 240 && analogRead(A2) < 240 && analogRead(A3) < 240);
for (int j = 0; j < 4; ++j)
if (analogRead(A0+j) > 240 && seq[i] != j) goto DONE; // Legit use case of goto to jump out of 2 loops
delay(500);
}
for (int i = 0; i < 8; ++i) {
for (int j = 0; j < 4; ++j) digitalWrite(j<<1|1, i&1^1);
delay(100);
}
}
DONE:
for (int i = 0; i < 8; ++i) {
for (int j = 0; j < 4; ++j) digitalWrite(j<<1, i&1^1);
delay(100);
}
}
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