Hello Unregistered ,
one last update: added an PGM Sw on RA3 to edit the baud rate: turn off the LCD display, press & hold the PGM sw, turn on the LCD line 1 will show "Press to Select" , line 2 : "Baud Rate:"...
many thanks Henrik to clarify this post. that make more sense to me now with further test, when the pin RA3 has nothing connected to it, the input is floating thus when adding a pulldown it's...
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Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780
one last update:
jackberg1 - 1st November 2025, 17:11added an PGM Sw on RA3
to edit the baud rate:
turn off the LCD display, press & hold the PGM sw, turn on the LCD
line 1 will show "Press to Select" , line 2 : "Baud Rate:"...