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Monitoring cella lievitazione
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#!/usr/bin/env python3 | |
# Get values from Inkbird IBS-TH1 and write them to JSON | |
from time import sleep | |
import json | |
from bluepy import btle | |
import boto3 | |
import logging | |
logging.basicConfig( | |
format='%(asctime)s %(levelname)-8s %(message)s', | |
level=logging.DEBUG, | |
datefmt='%Y-%m-%d %H:%M:%S') | |
logger = logging.getLogger('cella') | |
mac = "<SENSOR MAC ADDRESS>" | |
read_interval = 150 | |
def float_value(nums): | |
# check if temp is negative | |
num = (nums[1]<<8)|nums[0] | |
if nums[1] == 0xff: | |
num = -( (num ^ 0xffff ) + 1) | |
return float(num) / 100 | |
def c_to_f(temperature_c): | |
return 9.0/5.0 * temperature_c + 32 | |
def get_readings(): | |
try: | |
dev = btle.Peripheral(mac, addrType=btle.ADDR_TYPE_PUBLIC) | |
#readings = dev.readCharacteristic(0x28) | |
readings = dev.readCharacteristic(0x002d) | |
return readings | |
except Exception as e: | |
logger.error("Error reading BTLE: {}".format(e)) | |
return False | |
def submit_metric(namespace, metric_name, dimensions, value, unit='Count'): | |
try: | |
client = boto3.client('cloudwatch') | |
response = client.put_metric_data( | |
Namespace=namespace, | |
MetricData=[ | |
{ | |
'MetricName': metric_name, | |
'Dimensions': dimensions, | |
'Value': value, | |
'Unit': unit | |
}, | |
] | |
) | |
except Exception as e: | |
logger.error("Error submitting metric: {}".format(e)) | |
pass | |
print("Mi avvio...") | |
print("Aggiornamento ogni %i secondi" % read_interval) | |
while True: | |
readings = get_readings() | |
if not readings: | |
j = open('sux.json','w') | |
logger.warning("'sensor':'cellalievitazione', 'temperature':NaN, 'humidity': NaN, 'connected': False") | |
j.write(json.dumps({'id':'cella','temp':'unknown','hum':'unknown'})) | |
j.close() | |
continue | |
#logging.debug("raw data: {}".format(readings)) | |
# little endian, first two bytes are temp_c, second two bytes are humidity | |
temperature_c = float_value(readings[0:2]) | |
humidity = float_value(readings[2:4]) | |
#temperature_f = c_to_f(temperature_c) | |
logger.info("'id':'cellalievitazione', 'temperature': temperature_c[{:0.2f}], 'humidity': humidity[{:0.2f}], 'connected': True".format(temperature_c, humidity)) | |
j = open('sux.json','w') | |
j.write(json.dumps({'id':'cella','temp':temperature_c,'hum':humidity})) | |
j.close() | |
sleep(read_interval) |
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