
Chapter 11. Plugins
143
LED resistance
LED resistance calculator is used to determine the resistor necessary to light an LED
safely at a given voltage.
First, select the voltage that the LED will use (the first
option is the most common and a safe bet), and the current that it will draw (likewise
with the first option). Then, use the onscreen keyboard to type in the supply voltage
and, if selected, the custom forward current. This function produces safe estimates, but
use your own judgement when using these output values. Power rating and displayed
resistance are rounded up to the nearest common value.
11.4.14. Stats
Figure 11.47.: The stats-plugin
The stats plugin counts the directories and files (the total number as well as the number
of audio, playlist, image and video files) on your player. Press
Rec
or Long
Rec
to
abort counting and exit the plugin. Press it again to quit after counting has finished.
11.4.15. Stopwatch
Figure 11.48.: Stopwatch
A simple stopwatch program with support for saving times.
The Rockbox manual
(version rUnversioned directory-141216)
Iaudio M3