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document arduino mq7 setup
[air-quality]
/
mh-z19b.pl
diff --git
a/mh-z19b.pl
b/mh-z19b.pl
index
0c3fbd1
..
c2f8ffe
100755
(executable)
--- a/
mh-z19b.pl
+++ b/
mh-z19b.pl
@@
-6,7
+6,7
@@
use Device::SerialPort;
use Time::HiRes;
use Data::Dump qw(dump);
use Time::HiRes;
use Data::Dump qw(dump);
-my $port = shift @ARGV || '/dev/
ttyUSB0
';
+my $port = shift @ARGV || '/dev/
serial/by-path/pci-0000:00:1a.7-usb-0:5.3.4:1.2
';
my $influx_url = shift @ARGV || 'http://10.13.37.229:8186/write?db=telegraf';
$influx_url = 'http://10.13.37.92:8086/write?db=rot13';
my $influx_url = shift @ARGV || 'http://10.13.37.229:8186/write?db=telegraf';
$influx_url = 'http://10.13.37.92:8086/write?db=rot13';
@@
-16,7
+16,7
@@
$s->databits(8);
$s->parity('none');
$s->stopbits(1);
$s->handshake('none');
$s->parity('none');
$s->stopbits(1);
$s->handshake('none');
-$s->read_char_time(
0
);
+$s->read_char_time(
1
);
$s->read_const_time(10);
$s->debug(1);
$s->read_const_time(10);
$s->debug(1);
@@
-30,8
+30,7
@@
while (1) {
if ( $len > 0 ) {
my @v = unpack('C*', $string);
if ( $#v < 8 ) {
if ( $len > 0 ) {
my @v = unpack('C*', $string);
if ( $#v < 8 ) {
- warn "# $len ",dump($string), dump( @v ), $/;
- next;
+ die "# $len ",dump($string), dump( @v ), $/;
}
my $sum = 0;
}
my $sum = 0;