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Electronics => Beginners => Topic started by: kars on March 28, 2016, 01:29:44 pm

Title: lcd bus
Post by: kars on March 28, 2016, 01:29:44 pm

hi,
i recentely found a lcd screen and want to use it but i cannot figure out what bus it is. can someone help me?
the screen has fe following contacts: door, reset, clock, stb, data and 3.3v power and ground.
hope someone can help me!

Title: Re: lcd bus
Post by: homebrew on March 28, 2016, 05:53:25 pm

Door?

could you please provide a photo? Would make things a lot easier ...

Title: Re: lcd bus
Post by: danadak on March 28, 2016, 08:06:14 pm

Part number of the screen would be most helpful.

Regards, Dana.

Title: Re: lcd bus
Post by: kars on March 31, 2016, 01:48:10 pm

well... i already found out what door means...
its from an old cd player and its a sensor wire to test if the door is open or not.
so only data and stb need to be solved

Title: Re: lcd bus
Post by: kars on March 31, 2016, 01:58:20 pm

oh bwt the chip on the control board is a A2495F but finding a datasheet isnt easy

Title: Re: lcd bus
Post by: mariush on March 31, 2016, 02:20:01 pm

clock and data could be a pair  for data transfer ,see i2c or spi (two-wire)

stb could be stand-by , for example raise to 3.3v to enable or tie to ground to enable stand-by mode .. stand by could mean turn off backlight, and/or go into sleep mode but retain the data that's on lcd panel in the controller's memory.