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APP_Harvard_IAQ.py
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APP_Harvard_IAQ.py
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#import mraa
import time
import string
import os
import subprocess
from datetime import datetime
import APP_Harvard_IAQ_config as Conf
fields = Conf.fields
values = Conf.values
def upload_data():
CSV_items = ['device_id','date','time','s_t0','s_h0','s_d0','s_d1','s_d2','s_lr','s_lg','s_lb','s_lc', 's_l0', 's_g8']
pairs = datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S").split(" ")
values["device_id"] = Conf.DEVICE_ID
values["ver_app"] = Conf.Version
values["date"] = pairs[0]
values["time"] = pairs[1]
values["tick"] = 0
try:
with open('/proc/uptime', 'r') as f:
values["tick"] = float(f.readline().split()[0])
except:
print "Error: reading /proc/uptime"
msg = ""
for item in values:
if Conf.num_re_pattern.match(str(values[item])):
msg = msg + "|" + item + "=" + str(values[item]) + ""
else:
tq = values[item]
tq = tq.replace('"','')
msg = msg + "|" + item + "=" + tq
restful_str = "wget -O /tmp/last_upload.log \"" + Conf.Restful_URL + "topic=" + Conf.APP_ID + "&device_id=" + Conf.DEVICE_ID + "&key=" + Conf.SecureKey + "&msg=" + msg + "\""
os.system(restful_str)
msg = ""
for item in CSV_items:
if item in values:
msg = msg + str(values[item]) + '\t'
else:
msg = msg + "N/A" + '\t'
try:
with open(Conf.FS_SD + "/" + values["date"] + ".txt", "a") as f:
f.write(msg + "\n")
except:
print "Error: writing to SD"
def display_data(disp):
global connection_flag
pairs = datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S").split(" ")
disp.setCursor(0,0)
disp.write('{:16}'.format("ID: " + Conf.DEVICE_ID))
disp.setCursor(1,0)
disp.write('{:16}'.format("Date: " + pairs[0]))
disp.setCursor(2,0)
disp.write('{:16}'.format("Time: " + pairs[1]))
disp.setCursor(3,0)
disp.write('{:16}'.format('Temp: %.2fF' % ((values["s_t0"]*1.8)+32)))
disp.setCursor(4,0)
disp.write('{:16}'.format(' RH: %.2f%%' % values["s_h0"]))
disp.setCursor(5,0)
disp.write('{:16}'.format('PM2.5: %dug/m3' % values["s_d0"]))
disp.setCursor(6,0)
disp.write('{:16}'.format('Light: %dLux' % values["s_l0"]))
disp.setCursor(7,0)
temp = '{:16}'.format(Conf.DEVICE_IP)
disp.write(temp)
disp.setCursor(7,15)
temp = connection_flag
disp.write(temp)
def reboot_system():
process = subprocess.Popen(['uptime'], stdout = subprocess.PIPE)
k = process.communicate()[0]
items = k.split(",")
k = items[-3]
items = k.split(" ")
k = float(items[-1])
if k>1.5:
os.system("echo b > /proc/sysrq-trigger")
def check_connection():
global connection_flag
if(os.system('ping www.google.com -q -c 1 > /dev/null')):
connection_flag = "X"
else:
connection_flag = "@"
if __name__ == '__main__':
if Conf.Sense_PM==1:
pm_data = '1'
pm = Conf.pm_sensor.sensor(Conf.pm_q)
pm.start()
if Conf.Sense_Tmp==1:
tmp_data = '2'
tmp = Conf.tmp_sensor.sensor(Conf.tmp_q)
tmp.start()
tmp_data = {'Tmp':0.0, 'RH':0}
if Conf.Sense_Light==1:
light_data = '3'
light = Conf.light_sensor.sensor(Conf.light_q)
light.start()
if Conf.Sense_Gas==1:
gas_data = '4'
gas = Conf.gas_sensor.sensor(Conf.gas_q)
gas.start()
disp = Conf.upmLCD.SSD1306(0, 0x3C)
disp.clear()
count = 0
values["s_d0"] = 0
values["s_d1"] = 0
values["s_d2"] = 0
values["s_t0"] = 0
values["s_h0"] = 0
values["s_lr"] = -1
values["s_lg"] = -1
values["s_lb"] = -1
values["s_lc"] = -1
values["s_l0"] = -1
values["s_g8"] = 0
while True:
reboot_system()
check_connection()
if Conf.Sense_PM==1 and not Conf.pm_q.empty():
while not Conf.pm_q.empty():
pm_data = Conf.pm_q.get()
for item in pm_data:
if item in fields:
values[fields[item]] = pm_data[item]
if Conf.float_re_pattern.match(str(values[fields[item]])):
values[fields[item]] = round(float(values[fields[item]]),2)
else:
values[item] = pm_data[item]
if Conf.Sense_Tmp==1 and not Conf.tmp_q.empty():
while not Conf.tmp_q.empty():
tmp_data = Conf.tmp_q.get()
for item in tmp_data:
if item in fields:
values[fields[item]] = tmp_data[item]
if Conf.float_re_pattern.match(str(values[fields[item]])):
values[fields[item]] = round(float(values[fields[item]]),2)
else:
values[item] = tmp_data[item]
if Conf.Sense_Light==1 and not Conf.light_q.empty():
while not Conf.light_q.empty():
light_data = Conf.light_q.get()
for item in light_data:
if item in fields:
values[fields[item]] = light_data[item]
if Conf.float_re_pattern.match(str(values[fields[item]])):
values[fields[item]] = round(float(values[fields[item]]),2)
else:
values[item] = light_data[item]
if Conf.Sense_Gas==1 and not Conf.gas_q.empty():
while not Conf.gas_q.empty():
gas_data = Conf.gas_q.get()
for item in gas_data:
if item in fields:
values[fields[item]] = gas_data[item]
if Conf.float_re_pattern.match(str(values[fields[item]])):
values[fields[item]] = round(float(values[fields[item]]),2)
else:
values[item] = gas_data[item]
display_data(disp)
if count == 0:
upload_data()
count = count + 1
count = count % (Conf.Restful_interval / Conf.Interval_LCD)
time.sleep(Conf.Interval_LCD)