en:vu_backlight_with_android [ODROID Wiki]

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====== How to control backlight of the ODROID-VU5/7/7+/8C ======
[[https://forum.odroid.com/viewtopic.php?f=113&t=27227]]
{{youtube>mVvnLiKiksw?medium}}
===== HW =====
{{:en:bildschirmfoto_vom_2017-06-01_20-44-16.png?nolink&300|}}
==== ODROID-VU5 ====
{{:en:img_20170609_154759.jpg?nolink&600|}}

==== ODROID-VU7/7+ ====
{{:en:img_20170609_154820.jpg?nolink&600}}

==== PWM ====
=== ODROID-C1/C1+/C0 ===
^ Pin Number  ^ Expansion Net Name  ^ Description                               ^
| 33          | GPIOX.BIT11         | Export GPIO#108, Wiring Pi GPIO#23, PWM0  |
=== ODROID-C2 ===
^ Pin Number  ^ Expansion Net Name  ^ Description                               ^
| 33          | GPIOX.BIT6         | Export GPIO#234, Wiring Pi GPIO#23, PWM0  |

{{:en:img_20170607_180950.jpg?nolink&600|}}

===== SW =====

<WRAP left round tip 80%>
* **C1/C1+/C0** : Android KitKat (4.4.4) v3.7 or higher version is available.\\
* **C2** : Android Marshmallow (6.0.1) v3.0 or higher version is available.
</WRAP>



==== ODROID-VU5/VU7 ====
<file>
setenv hdmimode "800x480p60hz"

setenv vout_mode "dvi"

setenv backlight_pwm "yes"
</file>

==== ODROID-VU7+ ====
<file>
setenv hdmimode "1024X600p60hz"

setenv vout_mode "dvi"

setenv backlight_pwm "yes"
</file>

==== ODROID-VU8 ====
<file>
setenv hdmimode "1024X768p60hz"

setenv vout_mode "dvi"

setenv backlight_pwm "invert"
</file>