zelsenussi
Junior Member level 1
i have optical sensor(infra red ) sensor ,and i gave it vcc and ground and when i am testing its output i found it that vout=2.5v (detect) and (vout=0) (no detect)
but i need (vout=5v)when(detect) and (vout=0)when (no detect)..
one of my friend made something i didnt understand what did he do? but he used only one resistor ??and when i asked him he tald me Pull up pull down resistor?????????
how does this resistor afect in this way???
but i need (vout=5v)when(detect) and (vout=0)when (no detect)..
one of my friend made something i didnt understand what did he do? but he used only one resistor ??and when i asked him he tald me Pull up pull down resistor?????????
how does this resistor afect in this way???