We have our own hardware product that includes an LK202-24-USB.
We recently built 4 of these as rigs for delegates to work on during a training course. 3 operate as expected - and as they always have done - but one seems to have an LCD that's different from the rest. Here's how....
(1) At one point, I display a short Windows folder name on the LCD. The nearest glyph to a 'backslash' is hex A4, which is sort of the bottom half of a backslash (or, if you like, a reverse comma). So I send Chr$(164) to display that character and it works - except on this rogue LCD where a US cent sign is displayed (but not the Far East character at hex EC which looks a bit like a cent sign).
(2) To mimic a slider, I display a vertical bar in each of the 5 possible positions in an 8 x 5 character matrix. To do these is simply a set of eight Chr$(16) for position one, eight lots of Chr$(24) for position two, and so on, using Chr$(28), Chr$(30) and Chr$(31) for the dot matrix pattern of the other three vertical bars. Again this works great on all but this rogue LCD. What I get on that one is best described by drawing out the dot matrix that gets displayed for a whole set of five vertical bars, as follows:
Code: Select all
ooooo
o o
o o o
o o
o ooo
o ooo
ooooo
Does anyone have any ideas what is going on here ?
