CHAPTER 9 ■ RESISTORSAs multimeters have gotten smarter, they do a better job of displaying numbers in user-friendly ranges.
If your meter doesn’t present all numbers nicely, be prepared to think twice when a decimal point appears
on the meter.
Looking Up Resistor Values Online
The benefits of measuring a resistor using a multimeter are that you don’t need to decipher the color bands
and you know for sure the actual value of the resistor. But, the process is time-consuming.
Robot Room features a visual resistor calculator (see Figure 9-10) where you can either select the colors
or enter the resistance value. Go to: http://www.robotroom.com/Calculators/Resistor/Resistor-Color-
Code-Calculator.aspx
Figure 9-9. Non-friendly display of an in-range resistor value on a multimeter
Figure 9-10. Online resistance calculator