Lines Matching +full:led +full:- +full:pattern

1 * Pattern format for LED pattern trigger
3 The pattern is given by a series of tuples, of brightness and duration (ms).
4 The LED is expected to traverse the series and each brightness value for the
6 new value, and writing malformed pattern deactivates any active one.
13 The gradual dimming format of the software pattern values should be:
17 echo 0 1000 255 2000 > pattern
19 It will make the LED go gradually from zero-intensity to max (255) intensity in
22 LED brightness
24 255-|       / \            / \            /
28   0-|   /             \/             \/
29     +---0----1----2----3----4----5----6------------> time (s)
31 2. To make the LED go instantly from one brightness value to another, we should
32 use zero-time lengths (the brightness must be same as the previous tuple's). So
37 echo 0 1000 0 0 255 2000 255 0 > pattern
39 It will make the LED stay off for one second, then stay at max brightness for
42 LED brightness
44 255-|        +---------+    +---------+
48   0-|   -----+         +----+         +----
49     +---0----1----2----3----4----5----6------------> time (s)