samarsingla
New Member
Hello all,
I am using some push butoons in a robot remot control. The default state of the button is grounded through a 10k resistor and when pushed it is connected to a 5 v source. The output is going to an or gate ic. Now the problem is that in the default state, some current is flowing from the input pin of the or gate through the 10 k resitor and the voltage at the button pin is about 1.5volt. So the pr gate is on in the default state. What is the threshold at which or gate besomes high? How do I correct this? By using pull down resistors of lower value? Please someone guide me.
Thanx
I am using some push butoons in a robot remot control. The default state of the button is grounded through a 10k resistor and when pushed it is connected to a 5 v source. The output is going to an or gate ic. Now the problem is that in the default state, some current is flowing from the input pin of the or gate through the 10 k resitor and the voltage at the button pin is about 1.5volt. So the pr gate is on in the default state. What is the threshold at which or gate besomes high? How do I correct this? By using pull down resistors of lower value? Please someone guide me.
Thanx