Lilypad button board

Hello everyone,

I´ve recently bought a Lilypad button board. The reason for buying this button was that I thought that it might include a pull-down resistor on the board but I realized that it doesn´t include it. So I guess using as a normal button i must to add a resistor, right?

yes, you will want to use a pull-down resistor otherwise you will have a floating voltage, making for a rather flakey button.