Added Code

This commit is contained in:
Alexander Gabriel 2021-01-10 14:55:58 +01:00
parent 48ab1650f9
commit 1cbcdf6f3a
5 changed files with 308 additions and 0 deletions

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airsensor Executable file

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airsensor.c Executable file
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/*
* airsensor.c
*
* Original source: Rodric Yates http://code.google.com/p/airsensor-linux-usb/
* Modified source: Ap15e (MiOS) http://wiki.micasaverde.com/index.php/CO2_Sensor
* Modified source: by Sebastian Sjoholm, sebastian.sjoholm@gmail.com
* This version by: Juergen Plate
*
* requirement:
* libusb
* (sudo apt-get install libusb-dev)
*
* compile:
* gcc i-Wall -o airsensor airsensor.c -lusb
*/
#include <assert.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <usb.h>
#include <time.h>
/* Device-Handle fuer den Airsensor */
struct usb_dev_handle *devh;
void usage()
{
printf("\nAirSensor [options]\n");
printf("Options:\n");
printf("-d = Debug-Ausgabe einschalten\n");
printf("-v = Nur den VOC ausgeben; '0', falls Wert ausserhalb (450..2000)\n");
printf("-o = Nur einen Wert ausgeben und beenden\n");
printf("-m = Nur Wert fuer MRTG formatiert ausgeben\n");
printf("-h = Dieser Hilfe-Text\n\n");
exit(0);
}
/* Text und Messwert (falls > 0) mit Datum/Uhrzeit ausgeben */
void printout(char *str, int value)
{
time_t t = time(NULL); /* aktuelle Zeit (Epoche) */
struct tm tm = *localtime(&t); /* aktuelles Datum/Zeit */
printf("%04d-%02d-%02d %02d:%02d:%02d, ", tm.tm_year + 1900,
tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
if (value == 0)
{ printf("%s\n", str); }
else { printf("%s %d\n", str, value); }
}
/* USB-Device schliessen, Programm beenden */
void release_usb_device(int dummy)
{
int ret;
ret = usb_release_interface(devh, 0);
usb_close(devh);
exit(ret);
}
/* USB-Device zu Vendor- und Product suchen */
struct usb_device* find_device(int vendor, int product)
{
struct usb_bus *bus;
struct usb_device *dev;
usb_set_debug(0);
usb_find_busses();
usb_find_devices();
for (bus = usb_get_busses(); bus; bus = bus->next)
{
for (dev = bus->devices; dev; dev = dev->next)
{
if (dev->descriptor.idVendor == vendor
&& dev->descriptor.idProduct == product)
return dev; /* Erfolg: Device zurueckgeben */
}
}
return NULL; /* bei Misserfolg NULL retournieren */
}
int main(int argc, char *argv[])
{
int ret, vendor, product, counter; /* Hilfsvariable */
int debug; /* Debug-Ausgabe ein/aus */
int one_read, voc_only, mrtg_only; /* Flags fuer Optionen */
struct usb_device *dev; /* USB-Geraet; Airsensor */
char buf[1000]; /* Datenpuffer */
unsigned short voc = 0;
/* Variablen und Flags initialisieren */
dev = NULL; /* Device init */
counter = 10; /* Startwert Zaehler */
debug = 0; /* keine Debug-Ausgabe */
voc_only = 0; /* normale Ausgabe */
mrtg_only = 0; /* normale Ausgabe */
one_read = 0; /* Endlosschleife */
vendor = 0x03eb; /* Vendor-ID Airsensor */
product = 0x2013; /* Product-ID Airsensor */
/* Strg-C abfangen */
signal(SIGTERM, release_usb_device);
/* Kommandozeilen-Optionen einlesen */
while ((argc > 1) && (argv[1][0] == '-'))
{
switch (argv[1][1])
{
case 'd': debug = 1; break;
case 'v': voc_only = 1; break;
case 'm': mrtg_only = 1; break;
case 'o': one_read = 1; break;
case 'h': usage(); break;
}
++argv;
--argc;
}
if (debug)
{
printout("DEBUG: Active", 0);
printout("DEBUG: Init USB", 0);
}
usb_init();
do {
/* Airsensor suchen */
dev = find_device(vendor, product);
sleep(1);
/* Falls Airsensor nicht gefunden, mehrmals versuchen */
if (dev == NULL && debug)
printout("DEBUG: No device found, wait 10sec...", 0);
sleep(10);
counter--;
} while (dev == NULL && counter > 0);
if (dev == 0)
{
printout("Error: Device not found", 0);
exit(1);
}
if (debug)
printout("DEBUG: USB device found", 0);
/* Airsensor oeffnen */
devh = usb_open(dev);
assert(devh);
/* Device belegen */
ret = usb_get_driver_np(devh, 0, buf, sizeof(buf));
if (ret == 0)
ret = usb_detach_kernel_driver_np(devh, 0);
ret = usb_claim_interface(devh, 0);
if (ret != 0)
{
printout("Error: claim failed with error: ", ret);
exit(1);
}
if (debug)
printout("DEBUG: Read any remaining data from USB", 0);
ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000010, 1000);
if (debug)
printout("DEBUG: Return code from USB read: ", ret);
for(;;)
{
/* USB COMMAND TO REQUEST DATA - @h*TR */
if (debug)
printout("DEBUG: Write data to device", 0);
memcpy(buf, "\x40\x68\x2a\x54\x52\x0a\x40\x40\x40\x40\x40\x40\x40\x40\x40\x40", 0x0000010);
ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000010, 1000);
if (debug)
{
printout("DEBUG: Return code from USB write: ", ret);
printout("DEBUG: Read USB", 0);
}
ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000010, 1000);
if (debug)
printout("DEBUG: Return code from USB read: ", ret);
if ( !((ret == 0) || (ret == 16)))
{
if (voc_only)
{ printf("0\n"); }
else if (mrtg_only)
{ printf("0\n0\n0\nairsensor\n"); }
else
{ printout("ERROR: Invalid result code: ", ret); }
}
if (ret == 0)
{
if (debug)
printout("DEBUG: Read USB", 0);
sleep(1);
ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000010, 1000);
if (debug)
printout("DEBUG: Return code from USB read: ", ret);
}
voc = (buf[3] << 8) + buf[2];
sleep(1);
if (debug)
printout("DEBUG: Read USB [flush]", 0);
ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000010, 1000);
if (debug)
printout("DEBUG: Return code from USB read: ", ret);
// According to AppliedSensor specifications the output range is between 450 and 2000
// So only printout values between this range
if (voc >= 450 && voc <= 2001)
{
if (voc_only)
{ printf("%d\n", voc); }
else if (mrtg_only)
{ printf("%d\n0\n0\nairsensor\n", voc); }
else
{ printout("RESULT: OK, VOC: ",voc); }
}
else
{
if (voc_only)
{ printf("0\n"); }
else if (mrtg_only)
{ printf("0\n0\n0\nairsensor\n"); }
else
{ printout("RESULT: Error value out of range, VOC: ",voc); }
}
/* Falls nur einmal Lesen eingestellt, exit */
if (one_read)
release_usb_device(0);
/* Pause, dann neuer Schleifendurchlauf */
sleep(10);
}
}

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display_airsensor.py Executable file
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#!/usr/bin/python3
# -*- coding:utf-8 -*-
import sys
import os
picdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'pic')
libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
if os.path.exists(libdir):
sys.path.append(libdir)
import logging
from waveshare_epd import epd2in9
import time
from PIL import Image,ImageDraw,ImageFont
import traceback
logging.basicConfig(level=logging.DEBUG)
try:
epd = epd2in9.EPD()
logging.info("init and Clear")
epd.init(epd.lut_full_update)
epd.Clear(0xFF)
logging.info("3.read bmp file")
Himage = Image.open('airsensorimage.bmp')
epd.display(epd.getbuffer(Himage))
logging.info("Goto Sleep...")
epd.sleep()
epd.Dev_exit()
except IOError as e:
logging.info(e)
except KeyboardInterrupt:
logging.info("ctrl + c:")
epd2in9.epdconfig.module_exit()
exit()

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get_airsensor.sh Executable file
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#!/bin/sh
cd /root/vocsensor
echo $(date +"%Y-%m-%d %H:%M:%S"),$(./airsensor -v -o) >> airsensordata.txt
gnuplot plotImage.gnuplot
convert -gravity south -fill black -annotate 0 "$(date +"%Y-%m-%d %H:%M:%S")" airsensorimage.png -compress none airsensorimage.bmp
#convert airsensorimage.png -compress none airsensorimage.bmp
./display_airsensor.py

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plotImage.gnuplot Normal file
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#set title "VOC/Flüchtige organische Verbindungen"
unset multiplot
set xdata time
set style data lines
set term png size 296,128
set timefmt "%Y-%m-%d %H:%M:%S"
set format x ""
#set format x "%H:%M"
#set xlabel "Time"
#set ylabel "VOC"
set datafile separator ","
set autoscale y
set xrange [time(0) - 60*60:]
set output "airsensorimage.png"
set tics font ",10"
plot "airsensordata.txt" using 1:($2 == 0 ? NaN : $2) w lines notitle