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Ask an Expert Forum RE: Beaglebone Black & LCD interface
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  • lcd
  • beagleboneblack
  • arm-cortex_a8
  • uart
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RE: Beaglebone Black & LCD interface

Former Member
Former Member over 10 years ago

Hello,

 

I just found this community and am loving the content.  There is some really good technical comments, and I'm hoping this community can help.

 

I am working on a project for school which requires me to interface my Beaglebone Black with a UART device and it has to be accomplished through ARM assembly code.  The project that I have decided on would involve an LCD and some buttons for interrupts.  When certain interrupts are activated a message will appear on the LCD and then when a different interrupt is activated a different message will appear on the LCD.  I have spent some time becoming familiar with the TRM and what registers need to be updated.  I have also been looking across the internet for components.  However, most of these components seem to use parallel interfacing or I2C/SPI.  This is where I need your help.

 

Can anyone suggest components that might work well together and allow easy configuring of the Beaglebone Black (BBB) to the LCD through UART?  I'm not great at picking out components, but it seems to me that I need some sort of serial to parallel chip to interface the BBB to the LCD, since I am using UART.  Is that correct?  Any recommendations on serial to parallel chips?  I assume once I have a chip I can then interface with any parallel LCD, which Adafruit seems to have a nice selection. 

 

Am I correct on my thinking or are there serial LCDs that can interface directly with UART and simplify the whole process?  I appreciate any help or insight.

 

Thank you,
Jeff

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  • Former Member
    Former Member over 10 years ago

    UPDATE:  I have found a LCD or two that are low enough power and have a serial interface that should work with the beaglebone black.

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