Daję 100 punktów. Cześć, Bardzo bym prosił o pomoc z wytłumaczeniem tego kodu. Co oznaczają dane funkcje i jakie odpowiadają za co. Dziękuję z góry
const int A=10;
const int B=13;
const int C=12;
const int D=11;

void setup() {
pinMode(A0, INPUT);
pinMode(A, OUTPUT);
pinMode(B, OUTPUT);
pinMode(C, OUTPUT);
pinMode(D, OUTPUT);

}

int count = 0;

void loop() {
if (digitalRead(A0) == HIGH)
{
count++;
delay(200);
if (count == 10)
count = 0;
to_BCD();
}

if (count == 10)
count = 0;

}

void to_BCD()
{
if (count == 0)
{
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
}

if (count == 1)
{
digitalWrite(A, HIGH);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
}

if (count == 2)
{
digitalWrite(A, LOW);
digitalWrite(B, HIGH);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
}

if (count == 3)
{
digitalWrite(A, HIGH);
digitalWrite(B, HIGH);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
}

if (count == 4)
{
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, HIGH);
digitalWrite(D, LOW);
}

if (count == 5)
{
digitalWrite(A, HIGH);
digitalWrite(B, LOW);
digitalWrite(C, HIGH);
digitalWrite(D, LOW);
}

if (count == 6)
{
digitalWrite(A, LOW);
digitalWrite(B, HIGH);
digitalWrite(C, HIGH);
digitalWrite(D, LOW);
}

if (count == 7)
{
digitalWrite(A, HIGH);
digitalWrite(B, HIGH);
digitalWrite(C, HIGH);
digitalWrite(D, LOW);
}

if (count == 8)
{
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, HIGH);
}

if (count == 9)
{
digitalWrite(A, HIGH);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, HIGH);
}
}