I'm having a quiz show project with LEDs, and a buzzer. One LED must be lit up and the buzzer should work for about 0.5 sec.
I am stuck on the problem that using circuit output state (which gets high and remains high till reset comes), I will set the trigger pin of timer555 low, but since it's continuously low, the buzzer, which is connected to the output of timer555, buzzes repeatedly.
I'm wondering what I could do to convert a constant output to a fixed 0.5 pulse using a timer555.
I am stuck on the problem that using circuit output state (which gets high and remains high till reset comes), I will set the trigger pin of timer555 low, but since it's continuously low, the buzzer, which is connected to the output of timer555, buzzes repeatedly.
I'm wondering what I could do to convert a constant output to a fixed 0.5 pulse using a timer555.