Struggling coding with buttons - encoding

Question

Ive been really struggling recently with one problem.
The problem is that I cannot find a way to make one button trigger one sequence on an 8x8 display for 10 seconds and go off AND also have another button to make a different sequence for 10 seconds then go off and so on.
If anyone can help me please respond, it would be much appreciated :)
Here is the CODE:
const int buttonPin = 3
int button = 0;
long now = 0;
setup(){
pinMode(buttonPin, INPUT);
}
loop(){
button = digitalRead(buttonPin);
if(button==HIGH){
lc.setRow(0, 0, B00000000);
lc.setRow(0, 1, B00011000);
lc.setRow(0, 2, B00100100);
lc.setRow(0, 3, B01011010);
lc.setRow(0, 4, B10011001);
lc.setRow(0, 5, B10000001);
lc.setRow(0, 6, B11111111);
lc.setRow(0, 7, B00000000);
delay(110);
now = millis();
}
delay(50);
if(millis()>now + 10000){
lc.setRow(0, 0, B00000000);
lc.setRow(0, 1, B00000000);
lc.setRow(0, 2, B00100100);
lc.setRow(0, 3, B01011010);
lc.setRow(0, 4, B10011001);
lc.setRow(0, 5, B10000001);
lc.setRow(0, 6, B11111111);
lc.setRow(0, 7, B00000000);
delay(110);
}
}
Here is the help sheet i got from my tutor but i cant get my head around it:
Help sheet
Thanks Matt

Answer 1

The problem is delay(50);. The arduino does not check the input pins during these 50 milliseconds, and it's likely when you are pressing a button. You can either attach an interrupt function when the button is pressed (https://www.arduino.cc/reference/en/language/functions/external-interrupts/attachinterrupt/). Or you could try a looped delay like so:
unsigned int startTime = millis();
unsigned int currentTime = startTime;
while(currentTime - startTime >= 50) {
// check button state
currentTime = millis();
}
https://www.arduino.cc/en/Tutorial/StateChangeDetection
From the code you posted it appears you don't need delay(50); at all.