I have got a 7 segment LCDisplay pulled out from a large calulator with a wired header, and am wondering how to proceed with using it.
I am finding a too much noise using google, but from my memory these operate by sending a low current inverting voltage to one pinand using the other pins to switch the segments. I want to play around with thisbut am having ahopeless time with google.
Should I hookup a 555or pic to each of the pins in turn and try sending alogic signal to the remainder, in order to figure it out, or will it blow something this way? Or does it work some other way? I remember the 7106 vaguely, will google those now ...
{edit} ~multiplexing, its about testing then electrically(not logically) interfacing these salvaged components, yep kb is broke. {\edit}
I am finding a too much noise using google, but from my memory these operate by sending a low current inverting voltage to one pinand using the other pins to switch the segments. I want to play around with thisbut am having ahopeless time with google.
Should I hookup a 555or pic to each of the pins in turn and try sending alogic signal to the remainder, in order to figure it out, or will it blow something this way? Or does it work some other way? I remember the 7106 vaguely, will google those now ...
{edit} ~multiplexing, its about testing then electrically(not logically) interfacing these salvaged components, yep kb is broke. {\edit}
Last edited: