I am looking to build the circuit this guy recommends for making a better analog reference source. I found the voltage reference diode, and now I am looking for the proper resistor. I found a few 560Ω resistors with 1% rating. Now I am wondering what wattage they should be set at.
I think, the amperage for the 5V output of the Arduino is 500mA or so. Can anyone comment on that? Is there a best resistor watt rating you would choose for this circuit?
Are using watt ratings too far above necessary - bad? Or is that ok? Or stupid? Why?