I'd like to design a circuit that uses jumpers to get options from a user. When the jumper is off, I want the data signal to be a logic 0. When the jumper is on, I want the data signal to be a logic 1. However, I'm a little confused about how to do this.
I'm talking about a digital circuit, so a simple 1 or 0 is all I need.
If I have one side of the jumper at Vcc and the other connected to my signal and I place a jumper across, this would bring the signal high. However, if the jumper was left off, what would happen?
Would the data signal float to some middle, nondescript zone?
Should I tie the data signal to ground and then put a current limiting resistor on either the data signal or Vcc? Would this do what I want?
I'm talking about a digital circuit, so a simple 1 or 0 is all I need.
If I have one side of the jumper at Vcc and the other connected to my signal and I place a jumper across, this would bring the signal high. However, if the jumper was left off, what would happen?
Would the data signal float to some middle, nondescript zone?
Should I tie the data signal to ground and then put a current limiting resistor on either the data signal or Vcc? Would this do what I want?