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dcp1990 2004-10-19 20:48:03 +00:00
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CHANGELOG Normal file
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This is the RSMeter changelog.
~0.1~
*Initial release
*Screen handling is flaky
~0.2~
*Added grapher. See README.
*Added Tcl interface. See README.
*Cleaned up the tree
*Improved the make system
*Built with -Wall to get rid of crap
*Improved the device logic.
*Registered sf.net project :)
*Cleaned up the source

340
COPYING Normal file
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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Makefile Normal file
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all:
@echo "Building in src"
@make -C src
clean:
@echo "Cleaning in src"
@make clean -C src

38
README Normal file
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This is a package to interface to the RadioShack/Metex 22-168A multimeters.
To build, simply type
make
and watch it go with my ultra-super -Wall :-).
There are two executables that are built:
rsmeter is an ncurses interface, and is the one with the most features. Please use it.
Another executable is generated called rsmeter_non, which just spits the output to stdout. It could be used in shell scripts.
rsmeter_non might only work on FreeBSD, a little less so for rsmeter. (Patches please!)
Run rsmeter -h for usage. Sorry about documentation being so poor; here are some keys you can use:
'q' - quits the program properly (unlike ^C).
's' - stop logging (only works if you enabled logging).
Please note that the logging functions only append. This can be changed in the source.
If you found a bug (and preferably have a patch), email me at dcp1990@cox.net.
Simply type 'make' to build. There is no install target.
Any questions? Email the above address.
Under the GPL. See the 'COPYING' file for details.
There is a Perl script in this distribution to generate graphs from logfile output. It requires the GD::Graph module, available on CPAN. Run it as follows:
perl/graphlog.pl logfile outpng
where logfile is the log file from RSMeter and outpng is the name of the png to create.
There is also a rudimentary TCL/Tk interface in the tcl directory under the name rsmeter.tcl. Change the top line to reference your wish executable.
Another misc. executable is built called checkrts. Try it if things don't seem to be working; it will tell you if RTS was ever asserted (necessary for the meter to respond).
-Dan Ponte
http://skynard.flinkpoyd.homeunix.com:88/
http://rsmeter.sourceforge.net/

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#!/usr/bin/perl
# Takes RSMeter logs and graphs them using GD::Graph.
# (C)2004, Dan Ponte
use GD::Graph::lines;
use GD::Graph::colour qw( :files );
GD::Graph::colour::read_rgb( "/usr/X11R6/lib/X11/rgb.txt");
if($ARGV[0] eq '' or $ARGV[1] eq '')
{
print STDERR "Needs more arguments.\n";
exit 1;
}
open(TLG, $ARGV[0]);
foreach $c (<TLG>)
{
if($c =~ /([0-9]*):([0-9]*).([0-9]*): (.*)/) {
$csec = $3;
$tdat = $4;
if($tdat =~ /(mV|V|uA|A|Ohm|KHz|Hz)/i and $units !~ /$1/)
{ $units .= "$1/"; }
$tdat =~ s/[^0-9-]*//g;
push @labels, $csec;
push @dater, $tdat;
}
}
close(TLG);
my @final = (\@labels, \@dater);
my $graph = GD::Graph::lines->new(640, 480);
$graph->set(title => "RSMeter output",
y_label => $units,
boxclr => "black", dclrs => ["orange", "SteelBlue"],
shadowclr => "grey", shadow_depth => 3, bgclr => "LightGrey", fgclr => "LimeGreen", labelclr => "LimeGreen",
axislabelclr => "LimeGreen", textclr => "orange");
my $image = $graph->plot(\@final);
my $pngData = $image->png();
open(OUTFILE, ">" . $ARGV[1]);
binmode OUTFILE;
print OUTFILE $pngData;
close OUTFILE;

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# rsmeter makefile
LDFLAGS=-lncurses
CFLAGS=-Wall -g -ansi
CC=cc
all: rsmeter rsmeter_non checkrts
rsmeter: main.o drawing.o
${CC} ${LDFLAGS} ${CFLAGS} -o rsmeter drawing.o main.o
drawing.o: rsmeter.h
${CC} ${CFLAGS} -DSLOWWAY -c -o drawing.o drawing.c
main.o: rsmeter.h
${CC} ${CFLAGS} -DUSEOLDWAY -c -o main.o main.c
rsmeter_non: rsmeter_non.c
${CC} ${CFLAGS} -o rsmeter_non rsmeter_non.c
checkrts: checkrts.c
${CC} ${CFLAGS} -o checkrts checkrts.c
clean:
rm -f *.o rsmeter rsmeter_non *.core checkrts

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#include "rsmeter.h"
char numbs[14][6][7] = {
{
"","","","",""
},
{
"******",
"* *",
"* *",
"* *",
"******"
},
{
" ** ",
" *** ",
" ** ",
" ** ",
" **** "
},
{
"******",
" *",
"******",
"* ",
"******"
},
{
"******",
" *",
" *****",
" *",
"******"
},
{
"* *",
"* *",
"******",
" *",
" *"
},
{
"******",
"* ",
"******",
" *",
"******"
},
{
"******",
"* ",
"******",
"* *",
"******"
},
{
"******",
" * ",
" * ",
" * ",
" * "
},
{
"******",
"* *",
"******",
"* *",
"******"
},
{
"******",
"* *",
"******",
" *",
"******"
},
{
" ",
" ",
" ",
" *** ",
" *** "
},
{
" ",
" ",
" **** ",
" ",
" "
},
{
"","","","",""
}
};
int drawnum(WINDOW* twin, short tdig, int yos, int xos)
{
short i, j;
#ifdef SLOWWAY
init_pair(5, COLOR_RED, COLOR_RED);
#endif
for(i = 0; i <= LPN - 1; i++) {
wmove(twin, yos + i, xos);
for(j = 0; j <= COLPN - 1; j++) {
#ifdef SLOWWAY
if(numbs[tdig+1][i][j] == '*') {
wattron(twin, COLOR_PAIR(5));
waddch(twin, ' ');
wattroff(twin, COLOR_PAIR(5));
} else waddch(twin, ' ');
#else
if(numbs[tdig+1][i][j] == '*') waddch(twin, ACS_BLOCK); else waddch(twin, ' ');
#endif
}
}
return 0;
}
int oldmain(void)
{
initscr();
noecho();
start_color();
attron(A_ALTCHARSET);
refresh();
drawnum(stdscr, 2, 4, 4);
refresh();
getch();
endwin();
return 0;
}

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src/main.c Normal file
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/*
* RSMeter - read from 22-168A series meters. See README for details.
* By Dan Ponte
*/
#include "rsmeter.h"
short metertimeout = 12;
char* logfi;
time_t now, metertime = 0;
void usage(char* whatcalled)
{
fprintf(stderr, "RSMeter (C) Dan Ponte.\nUsage: %s [-c] [-l logfile] [-t timeout] -s <SerDevice>\n"
"\t-c: Hide cursor.\n"
"\t-l logfile: logs to file. Will APPEND, not write over.\n"
"\t-t timeout: Quit after timeout seconds of no response.\n",
whatcalled);
exit(-1);
}
int main(int argc, char* argv[])
{
int ch, sset = 0, hidecurs;
while ((ch = getopt(argc, argv, "hcs:l:t:")) != -1)
switch (ch) {
case 's':
dev = strdup(optarg);
sset = 1;
break;
case 'c':
hidecurs = 1;
break;
case 'l':
logfil = fopen(optarg, "a");
logfi = strdup(optarg);
if(logfil == NULL) { perror("rsmeter"); exit(1); }
logging = 1;
break;
case 't':
metertimeout = atoi(optarg);
break;
case '?':
case 'h':
default:
usage(argv[0]);
}
if(!sset) usage(argv[0]);
setser(argv[0]);
argc -= optind;
argv += optind;
initscr();
cbreak();
start_color();
keypad(stdscr, TRUE);
noecho();
now = time(NULL);
if(logging) {
fprintf(logfil, "RSMeter Logfile started at %s\n", ctime(&now));
}
nums = newwin(LPN + 3, (COLPN * 6) + 6, (LINES - (LPN + 3))/ 2, (COLS - (COLPN * 6)) / 2);
alph = newwin(1, 20, ((LINES - (LPN + 3)) / 2) -1, (COLS - (COLPN * 6)) / 2);
refresh();
printw("RSMeter (C)2004, Dan Ponte\n");
mvprintw(2, 1, " \n");
refresh();
mvprintw(LINES - 1, 1, "Keys: q - quit\t\t%s", logging ? "s - stop logging" : "" );
mvprintw(LINES - 2, 1, "%s %s", logging ? "Logging to" : "Not logging", logging ? logfi : "");
refresh();
if(hidecurs) curs_set(0);
mainloop();
return 0;
}
void setser(char* ourname)
{
struct termios tr;
if(strcmp(dev, "/dev/cu") == NULL && strcmp(dev, "/dev/ttyS") == NULL && strcmp(dev, "/dev/ttyd")
== NULL) {
fprintf(stderr, "%s: %s not a serial device.\n", ourname, dev);
exit(1);
}
if(access(dev, R_OK | W_OK) != 0) {
perror(ourname);
exit(-1);
}
fd = open(dev, O_RDWR);
if(fd == -1) {
perror(ourname);
exit(-1);
}
tcgetattr(fd, &tr);
cfsetispeed(&tr, 1200);
cfsetospeed(&tr, 1200);
tr.c_cflag &= ~PARENB;
tr.c_cflag &= ~CSTOPB;
tr.c_cflag |= CSTOPB;
tr.c_cflag &= ~CSIZE;
tr.c_cflag |= CS7;
tcsetattr(fd, TCSANOW, &tr);
ioctl(fd, TIOCMGET, &stat);
stat &= ~TIOCM_RTS;
ioctl(fd, TIOCMSET, &stat);
ioctl(fd, TIOCMGET, &stat);
if(stat & TIOCM_RTS) {
fprintf(stderr, "RTS Not asserted! Aborting.\n");
close(fd);
exit(1);
}
}
int mainloop(void)
{
char buffer[14];
char cbuf[3];
struct timeval tv;
int cou = 0, rval;
int didwr = 0;
fd_set fds_read;
memset(buffer, 0, sizeof(buffer));
FD_ZERO(&fds_read);
if(write(fd, "D", sizeof("D")) == -1) ;
cou = 0;
didwr = 1;
metertime = time(NULL);
while(1) {
FD_ZERO(&fds_read);
FD_SET(fd, &fds_read);
FD_SET(fileno(stdin), &fds_read);
tv.tv_sec = 1;
tv.tv_usec = 0;
switch((rval = select(fd + 1, &fds_read, NULL, NULL, &tv)))
{
case -1:
exit(-1);
break;
case 0:
now = time(NULL);
move(3, 4);
clrtoeol();
refresh();
if(now - metertime > 2 && metertime != 0) {
mvprintw(3, 4, "ERROR: No response from meter in %d seconds!",
now - metertime);
if(now - metertime >= metertimeout) {
closeprop();
fprintf(stderr, "No response from meter in %d seconds,"
" aborted.\n", metertimeout);
exit(3);
}
refresh();
break;
}
if(metertime != 0) {
break;
}
if(write(fd, "D", sizeof("D")) == -1) ;
memset(buffer, 0, sizeof(buffer));
cou = 0;
didwr = 1;
metertime = time(NULL);
break;
default:
{
if(FD_ISSET(fd, &fds_read) != 0)
{
metertime = 0;
siz = read(fd, cbuf, 1);
if(cou == 13) {
if(cbuf[0] >= 32 && cbuf[0] <= 126) buffer[cou] = cbuf[0];
now = time(NULL);
tim = *localtime(&now);
/* #ifdef USEOLDWAY */
mvprintw(2, 1, "%d:%d.%d: %s\n", tim.tm_hour,
tim.tm_min, tim.tm_sec, buffer);
refresh();
/* #endif */
prettyprint(buffer);
if(logging) {
fprintf(logfil, "%d:%d.%d: %s\n",
tim.tm_hour, tim.tm_min,
tim.tm_sec, buffer);
}
cou = 0;
memset(buffer, 0, sizeof(buffer));
didwr = 0;
} else if(cou < 13) {
if(cbuf[0] >= 32 && cbuf[0] <= 126) buffer[cou] = cbuf[0];
cou++;
}
cbuf[0] = cbuf[1] = '\0';
}
if(FD_ISSET(fileno(stdin), &fds_read) != 0)
{
unsigned char kbbuf[1];
int count;
if((count = read(fileno(stdin), kbbuf, sizeof(kbbuf))))
{
switch(kbbuf[0])
{
case 'q':
closeprop();
exit(0);
break;
case 's':
now = time(NULL);
if(logging) {
fprintf(logfil,
"RSMeter logfile closed at %s\n",
ctime(&now));
logging = 0;
fclose(logfil);
}
move(LINES - 2, 1);
clrtoeol();
printw("Not logging");
refresh();
break;
}
}
}
}
}
}
return 0;
}
void closeprop(void)
{
now = time(NULL);
close(fd);
if(logging) {
fprintf(logfil,
"RSMeter logfile closed at %s\n",
ctime(&now));
fclose(logfil);
}
endwin();
}
void prettyprint(char* str)
{
int i, ndig = 0;
wclear(nums);
wclear(alph);
for(i = 0; i < strlen(str); i++)
{
if(isdigit(str[i])) {
drawnum(nums, str[i] - 48, 1, 1 + (ndig * (COLPN + 1)));
wrefresh(nums);
ndig++;
}
if(str[i] == '.') {
drawnum(nums, 10, 1, 1 + (ndig * (COLPN + 1)));
wrefresh(nums);
ndig++;
} else if(str[i] == '-') {
drawnum(nums, 11, 1, 1 + (ndig * (COLPN + 1)));
wrefresh(nums);
ndig++;
} else if(isalpha(str[i]) || str[i] == ' ') {
waddch(alph, str[i]);
wrefresh(alph);
}
}
move(2, 0);
}

26
src/rsmeter.h Normal file
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#include <fcntl.h>
#include <ctype.h>
#include <unistd.h>
#include <signal.h>
#include <termios.h>
#include <ncurses.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/select.h>
#include <sys/ioctl.h>
int fd, siz, stat, logging;
FILE* logfil;
struct tm tim;
sig_t* than(int s);
WINDOW* alph;
char* dev;
void prettyprint(char* str);
void setser(char* ourname);
void closeprop(void);
int mainloop(void);
WINDOW* nums;
int drawnum(WINDOW* twin, short tdig, int yos, int xos);
#define LPN 5
#define COLPN 6

26
tcl/rsmeter.tcl Executable file
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#!/usr/local/bin/wish8.4
# Change the open line below to reference your serial device.
proc every {ms body} { eval $body; after $ms [ info level 0] }
proc dowhatnot fhh {
puts -nonewline $fhh "D"
flush $fhh
}
set fhn [ open "/dev/cuaa0" "r+" ]
fconfigure $fhn -mode 1200,n,7,2 -handshake none -ttycontrol {RTS 0}
frame .rc -borderwidth 2 -width 80c -height 24c
pack .rc
wm title . "RSMeter"
frame .mnubar -relief raised -bd 2
pack .mnubar -in .rc -fill x -expand yes
menubutton .mnubar.file -underline 0 -text "File" -menu .mnubar.file.menu
pack .mnubar.file -side left
menubutton .mnubar.help -underline 0 -text "Help" -menu .mnubar.help.menu
pack .mnubar.help -side right
label .rc.slb -width 24 -height 2
pack .rc.slb
menu .mnubar.file.menu
.mnubar.file.menu add command -label "Exit" -command {close $fhn; exit }
menu .mnubar.help.menu
.mnubar.help.menu add command -label "About" -command {message .msg -text "RSMeter.\n(C)2004, Dan Ponte" }
fileevent $fhn readable {.rc.slb configure -text [gets $fhn] }
every 1000 [list dowhatnot $fhn]

21
util/checkrts.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
int main(int argc, char* argv[])
{
int stat, fd;
if(argc != 2) {
fprintf(stderr, "Usage %s <device>\n", argv[0]);
exit(-1);
}
fd = open(argv[1], O_RDONLY);
if(fd == -1) {
perror(argv[0]);
exit(1);
}
ioctl(fd, TIOCMGET, &stat);
if(stat & TIOCM_RTS) printf("Not asserted\n"); else printf("Asserted\n");
return 0;
}

57
util/rsmeter_non.c Normal file
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/*
* Test program to read from meter.
* By Dan Ponte
*/
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <termios.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/ioctl.h>
int fd, siz, stat;
struct tm tim;
time_t now;
sig_t* than(int s);
int main(int argc, char* argv[])
{
char buffer[16];
struct termios tr;
if(argc < 2) exit(-1);
fd = open(argv[1], O_RDWR);
if(fd == -1) {
perror(argv[0]);
exit(-1);
}
tcgetattr(fd, &tr);
cfsetispeed(&tr, 1200);
cfsetospeed(&tr, 1200);
tr.c_cflag &= ~PARENB;
tr.c_cflag &= ~CSTOPB;
tr.c_cflag |= CSTOPB;
tr.c_cflag &= ~CSIZE;
tr.c_cflag |= CS7;
tcsetattr(fd, TCSANOW, &tr);
ioctl(fd, TIOCMGET, &stat);
stat &= ~TIOCM_RTS;
ioctl(fd, TIOCMSET, &stat);
fprintf(stderr, "Serial port initialized.\n");
while(1) {
if(write(fd, "D", 1) == -1) perror("met");
siz = read(fd, buffer, 15);
now = time(NULL);
tim = *localtime(&now);
if(siz == 14) printf("%d:%d.%d: %s\n", tim.tm_hour,
tim.tm_min, tim.tm_sec, buffer);
bzero(buffer, 16);
sleep(1);
}
return 0;
}
sig_t* than(int s)
{
close(fd);
exit(0);
}