HI
I am trying to drive a Lumix S401M16 LCD display with a HT1621 compatible TD1621B. I now hear the LCD is multiplexed. No Idea how to show a number on the display. direct addressing doesnt work. does anyone know how to make this work?
thanks
Does the library not have examples?
none that work for my setup
That answer does not allow me to be of further help. If you can show code in code tags and somehow show what was expected vs what happened I may be able to help further.
Addressing Your Issue:
You can spend weeks spinning your wheels, or you might get lucky and solve your problem quickly. To avoid unnecessary delays, it’s crucial to provide an annotated schematic of your circuit as you have it wired, showing all connections, including power, ground, and power supplies. I recommend it be in English, you can translate before posting if needed.
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Technical Information: Many modules look similar and may even have the same name, but they can function differently. This is why we always ask for links to detailed technical information, not just sales pages like those on Amazon, which often lack the specifics we need.
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Post your Software Without that we do not have a clue as to how it is expected to operate. Be sure to use code tags.
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OK so now I also tried finished 4 digit LCD modules I bought using HT1621 chip. neither give any correct output using the HT1621 library. See link below.
no clue how to address a single segment directly, nor how to make the library output a number correctly, I suppose it needs some new mapping for 4 digits? is there any way to find out the right addressing?