Hello, I'm making a homemade archery target that will flash a light every time the target has been pierced. I'm thinking of using the idea behind resistive touch screen technology. So every time the arrow pierces a resistive layer would contact a conductive layer and increase the resistance of the circuit. My problem is: how do I take that increase in resistance and use it as a signal to turn on a lightbulb. I am not an EE, and have VERY limited knowledge, so thank you for helping and being patient. Also, is there another way to solve this problem of turning a light on every time the target is hit, perhaps with capacitance? Maybe use a grid of switches that once hit and ruptured could trigger a capacitor to flash a lightbulb?