Mike - K8LH
Well-Known Member
Just wanted to pass along an untested idea for adding functionality to the original Myke Predko 2-pin LCD Interface design. Constructive criticism and comments are welcome.
I'm trying to come up with a relatviely simple LCD+Buttons+Speaker device with a 2 or 3 pin interface to provide the basic functions I need when I use low pin count PIC devices on a breadboard. This would actually become the third device in a series of hobby "Breadboard Buddy" products I'm developing.
I hope to test the first circuit soon (below). If I can get that working then I think I would like to try connecting the SWX pin (switch matrix output) through a resistor to the 'DAT' pin and try to get all the same functionality with just a 2 pin 'DAT'/'CLK' interface.
I will pass along sample Assembler and BoostC routines in a subsequent post.
Kind regards, Mike
I'm trying to come up with a relatviely simple LCD+Buttons+Speaker device with a 2 or 3 pin interface to provide the basic functions I need when I use low pin count PIC devices on a breadboard. This would actually become the third device in a series of hobby "Breadboard Buddy" products I'm developing.
I hope to test the first circuit soon (below). If I can get that working then I think I would like to try connecting the SWX pin (switch matrix output) through a resistor to the 'DAT' pin and try to get all the same functionality with just a 2 pin 'DAT'/'CLK' interface.
I will pass along sample Assembler and BoostC routines in a subsequent post.
Kind regards, Mike
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