]> git.donarmstrong.com Git - qmk_firmware.git/blobdiff - docs/feature_backlight.md
[Keymap] Jarred's Plaid keymap (#6049)
[qmk_firmware.git] / docs / feature_backlight.md
index b06db89e4df9fa6fcd19be0349b2abf1a5fda973..64c663076ba1f61af53929dd28c15c68caf5d315 100644 (file)
@@ -65,7 +65,7 @@ To change the behaviour of the backlighting, `#define` these in your `config.h`:
 |---------------------|-------------|-------------------------------------------------------------------------------------------------------------|
 |`BACKLIGHT_PIN`      |`B7`         |The pin that controls the LEDs. Unless you are designing your own keyboard, you shouldn't need to change this|
 |`BACKLIGHT_PINS`     |*Not defined*|experimental: see below for more information                                                                 |
-|`BACKLIGHT_LEVELS`   |`3`          |The number of brightness levels (maximum 15 excluding off)                                                   |
+|`BACKLIGHT_LEVELS`   |`3`          |The number of brightness levels (maximum 31 excluding off)                                                   |
 |`BACKLIGHT_CAPS_LOCK`|*Not defined*|Enable Caps Lock indicator using backlight (for keyboards without dedicated LED)                             |
 |`BACKLIGHT_BREATHING`|*Not defined*|Enable backlight breathing, if supported                                                                     |
 |`BREATHING_PERIOD`   |`6`          |The length of one backlight "breath" in seconds                                                              |
@@ -73,8 +73,10 @@ To change the behaviour of the backlighting, `#define` these in your `config.h`:
 
 ## Backlight On State
 
-Most backlight circuits are driven by an N-channel MOSFET or NPN transistor. This means that to turn the transistor *on* and light the LEDs, you must drive the backlight pin, connected to the gate or base, *low*.
-Sometimes, however, a P-channel MOSFET, or a PNP transistor is used. In this case you must `#define BACKLIGHT_ON_STATE 1`, so that when the transistor is on, the pin is driven *high* instead.
+Most backlight circuits are driven by an N-channel MOSFET or NPN transistor. This means that to turn the transistor *on* and light the LEDs, you must drive the backlight pin, connected to the gate or base, *high*.
+Sometimes, however, a P-channel MOSFET, or a PNP transistor is used. In this case, when the transistor is on, the pin is driven *low* instead.
+
+This functionality is configured at the keyboard level with the `BACKLIGHT_ON_STATE` define.
 
 ## Multiple backlight pins