Perhaps it’s a side-effect of getting older, but it seems like reading the color bands on blue metal-film resistors is harder than it was on the old brown carbon ones. So often the multimeter ...

These color bands and the necessary orientation to read ... It will also help to have a grasp of how to read Arduino resistors, as they're important for controlling the current in an electrical ...

He came up with Ohm Sense, an iPhone app that will take a picture of a resistor and calculate the value based on the color bands ... While it only works on resistors with beige plastic now ...