Download ACS Color 320 x 240 LCD Basic Programming

ACS Color 320 x 240 LCD Basic Programming Manual
8 September 2014
Don’t Get Boxed In
If you look at the Extended Characters table at the end of the manual, there are some that can be used for
line drawing. Let’s try and draw a simple box. We need the four corners, the lines across the top and
bottom and the lines on the side. Try typing this short program in – don’t forget to NEW first:
10000
10005
10010
10015
10020
10025
10030
10035
10040
10045
10050
10055
10060
10065
10070
10075
REM Draw a box using ANSI characters
PRINT CHR$(226); CHR$(148); CHR$(140);
FOR I=1 TO 10
PRINT CHR$(226); CHR$(148); CHR$(128);
NEXT I
PRINT CHR$(226); CHR$(148); CHR$(144)
PRINT CHR$(226); CHR$(148); CHR$(130);
FOR I = 1 TO 10
PRINT " ";
NEXT I
PRINT CHR$(226); CHR$(148); CHR$(130)
PRINT CHR$(226); CHR$(148); CHR$(148);
FOR I=1 TO 10
PRINT CHR$(226); CHR$(148); CHR$(128);
NEXT I
PRINT CHR$(226); CHR$(148); CHR$(152)
And now RUN it:
run
┌──────────┐
│
│
└──────────┘
Ready
save ansibox
Ready
If it works as shown then you can save it for later.
Now you’re probably asking yourself why are the line numbers so large? The large line numbers allow us
to come back later and put some lower-numbered lines before these. In this example they’re going to let us
save some typing.
Character Rules
1.
2.
3.
4.
5.
Characters are actually a displayed version of a single number.
The first 128 characters (numbers 0 – 127) have been agreed upon and are referred to as the ASCII
character set. Refer to http://www.asciitable.com
There is a built-in function, CHR$( ) that can convert a numeric argument into a character.
Additional extended characters may be displayed using multiple character prefix codes.
Using Basic PRINT commands on the display is known as ANSI operation.
Copyright©2010-2014 by ACS, Sarasota, Florida
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