D
David Chapman
- Jan 1, 1970
- 0
Greetings from the U.K.
I'm trying to find a suitable small(ish) display module (preferably
LCD) that can show graphically the relative levels of 16 simultaneously
available DC voltages, all in the range zero to +3 volts. I'd prefer
that the module wasn't any larger that about 4" wide and 2" high - its
front-to-back dimension is not critical.
I need a display arrangement that is capable of showing something like
the following, rather crude, 16-way bar-graph graphic image .....
X
X X X X
X X X X X X
X
X X X X X X X X X
X X
X X X X X X X X X X X X
X X X X
....so that with a quick glance it is immediately obvious
which of the 16 'channels' is producing the highest DC voltage. I don't
need to know the actual voltages, just which is/are the highest of them,
with each 'channel' voltage displayed by a 'lit' number of' (8-16)
graphic bars.
I have tried to find a ready-made audio-frequency band graphic display
module that could be modified to do this job but haven't, as yet, been
successful, so I'm now wondering if someone in this NG might know of
one, or be able to suggest a display manufacturer who can offer an
'off-the-shelf' module capable of doing this that DOES NOT require any
specially written custom software.
Since I'll probably only be needing a dozen or so of these modules
it's unlikely to be cost-effective to get something specially produced..
Any constructive suggestions and/or recommendations will be very much
appreciated.
TIA - Dave
I'm trying to find a suitable small(ish) display module (preferably
LCD) that can show graphically the relative levels of 16 simultaneously
available DC voltages, all in the range zero to +3 volts. I'd prefer
that the module wasn't any larger that about 4" wide and 2" high - its
front-to-back dimension is not critical.
I need a display arrangement that is capable of showing something like
the following, rather crude, 16-way bar-graph graphic image .....
X
X X X X
X X X X X X
X
X X X X X X X X X
X X
X X X X X X X X X X X X
X X X X
....so that with a quick glance it is immediately obvious
which of the 16 'channels' is producing the highest DC voltage. I don't
need to know the actual voltages, just which is/are the highest of them,
with each 'channel' voltage displayed by a 'lit' number of' (8-16)
graphic bars.
I have tried to find a ready-made audio-frequency band graphic display
module that could be modified to do this job but haven't, as yet, been
successful, so I'm now wondering if someone in this NG might know of
one, or be able to suggest a display manufacturer who can offer an
'off-the-shelf' module capable of doing this that DOES NOT require any
specially written custom software.
Since I'll probably only be needing a dozen or so of these modules
it's unlikely to be cost-effective to get something specially produced..
Any constructive suggestions and/or recommendations will be very much
appreciated.
TIA - Dave