serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

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  1. - 28th September 2025, 20:25 #3
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    jackberg1
    jackberg1 is offline Junior Member
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    Default Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

    final code update in "16F690 LCD BACKPACK"
    the low rs and high rs lines are not needed, since it control PortA.0 and not the HD44780 chip.


    elseif b1 = 255 then
    ' low rs ' LCD Command
    serin2 Portb.5,baudr,3,main,[b1]
    if b1 = 0 then
    low porta.0 ' Back Light OFF
    ' high rs
    endif
    if b1 = 8 then
    high porta.0 ' Back Light ON
    ' high rs
    endif
    Last edited by jackberg1; - 28th September 2025 at 20:27.
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