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Visual TFT/GLCD Project

MMB TFT backlight dimmer

Rating:

1

Author: John Code

Last Updated: 2016-02-18

Package Version: 1.0.0.0

Category: TFT

Downloaded: 948 times

Followed by: 4 users

License: MIT license  

Code to dim the backlight from the TFT display on the Mikromedia Board. Made for the PIC18FJ board, HW Rev. 1.05 but is easy to adopt. PWM is made with Timer2, the PWM module is not used, although connected to this port. Brightness can be adjusted from 10% to 100% in 10% steps.

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  • Information
  • Comments (1)
DOWNLOAD LINK RELATED COMPILER CONTAINS
mikroC PRO for PIC
  • lib
  • src
  • exa
  • hlp
  • hex
  • sch
  • pcb
  • doc

Visual TFT/GLCD Project Blog

User interface

User interface

The user interface for this code

View full image

This code doesn't use the PWM module, so it is compatible to more applications.

I measured the current consumption (5V input USB mini) and it was approx. as follows:

  • backlight off, screen black: 31mA
  • 10%:   35mA
  • 50%:   57mA
  • 100%: 85mA

No other peripherals were connected.

 

 

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