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Add more comments for week4.ino

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Anthony Wang 2022-09-29 15:58:09 -04:00
parent e584c381d9
commit cf51e27323
Signed by: a
GPG key ID: 42A5B952E6DD8D38
1 changed files with 12 additions and 11 deletions
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week4/week4.ino
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@ -6,28 +6,29 @@ void setup() {
void loop() {
int len = 0;
int seq[1000];
while (len < 3) seq[len++] = random(0, 4); // generate 3 random numbers
while (1) {
seq[len++] = random(0, 4);
for (int i = 0; i < len; ++i) {
digitalWrite(seq[i]<<1|1, HIGH);
seq[len++] = random(0, 4); // generate another random number
for (int i = 0; i < len; ++i) { // flash the LEDs according to seq
digitalWrite(2*seq[i]+1, HIGH);
delay(500);
digitalWrite(seq[i]<<1|1, LOW);
digitalWrite(2*seq[i]+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)
while (analogRead(A0) < 240 && analogRead(A1) < 240 && analogRead(A2) < 240 && analogRead(A3) < 240); // wait for press
for (int j = 0; j < 4; ++j) // check which button was pressed and whether it matches seq
if (analogRead(A0+j) > 240 && seq[i] != j) goto DONE; // Legit use case of goto to jump out of 3 loops
delay(500);
delay(250);
}
for (int i = 0; i < 8; ++i) {
for (int j = 0; j < 4; ++j) digitalWrite(j<<1|1, i&1^1);
for (int i = 0; i < 8; ++i) { // flash green lights 4 times
for (int j = 0; j < 4; ++j) digitalWrite(2*j+1, (i+1)%2);
delay(100);
}
}
DONE:
for (int i = 0; i < 8; ++i) {
for (int j = 0; j < 4; ++j) digitalWrite(j<<1, i&1^1);
for (int i = 0; i < 8; ++i) { // flash red lights 4 times
for (int j = 0; j < 4; ++j) digitalWrite(2*j, (i+1)%2);
delay(100);
}
}