LEDs and Multiplexing
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Jun 04, 2014, 06:00 pm
Hi guys. I'm working on a project with 20*4 LCD and matrix keypad and RTC. I need to make a menu, that let's you set a dated alarm witch triggers a relay. I found this http://liudr.wordpress.com/libraries/phi_prompt/ .
I managed to get the LCD working. I just need to help with controlling the whole menu using matrix keypad.
There are some examples included with these libraries, but i can't manage to get it working.
Can someone show me, how to get that working?
Jun 04, 2014, 06:49 pm
You will need to give much more information if you want to get any real help.
links to the data sheets or at least descriptions of each component you have
a circuit diagram/schematic
your sketch so far
a detailed description of what you want to happen
Jun 04, 2014, 08:13 pm
I'm pretty sure you need the correct back pack on your LCD for that library to work. It's a NICE back pack. :-)
Look on inmojo.com