Hardware Reference
In-Depth Information
Figure 6-4.
Connecting the LCD character display to Galileo
Example 6-9. Displaying results on an LCD
#include <LiquidCrystal.h>
//
LiquidCrystal
lcd
(
12
,
11
,
5
,
4
,
3
,
2
);
//
void
setup
()
{
lcd
.
init
(
1
,
12
,
255
,
11
,
5
,
4
,
3
,
2
,
0
,
0
,
0
,
0
);
//
lcd
.
begin
(
16
,
2
);
//
lcd
.
setCursor
(
3
,
0
);
//
lcd
.
print
(
"days until"
);
//
lcd
.
setCursor
(
0
,
1
);
//
lcd
.
print
(
"MAKE is here!"
);
}
void
loop
()
{
lcd
.
setCursor
(
0
,
0
);
//
lcd
.
print
(
" "
);
//
lcd
.
setCursor
(
0
,
0
);
//
lcd
.
print
(
getDays
());
//
delay
(
30
*
60
*
1000
);
//
}
int
getDays
()
{
char
output
[
5
];
FILE
*
fp
;
fp
=
popen
(
"python /home/root/json-parse.py"
,
"r"
);
