One thing that usually isn't mentioned (at least in the projects I have seen) is the wattage of the resistors required. I can have a 200 ohm resistors in 0.25 w

One thing that usually isn't mentioned (at least in the projects I have seen) is the wattage of the resistors required. I can have a 200 ohm resistors in 0.25 watt rating or 1 watt rating or something else. Depending on what is required for your circuit it can burn your resister due to excessive current.