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flower.py
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flower.py
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#!/usr/bin/env python
# Read data from Flower Care, tested on firmware version 2.7.0
# sudo apt-get install libbluetooth-dev
# sudo apt-get install libboost-python-dev
# sudo apt-get install libboost-all-dev
# pip install gattlib
# 1) sudo hcitool lescan
# 2) sudo python flower.py C4:7C:8D:65:C9:87
# Battery level: 100 %
# Firmware version: 2.7.0
# Light intensity: 47 lux
# Temperature: 19.1 C
# Soil moisture: 0 %
# Soil fertility: 0 uS/cm
import sys
import string
from gattlib import GATTRequester, GATTResponse
from struct import *
def ReadFlowerCare(address):
try:
requester = GATTRequester(address)
except:
return 'error', 0, 0, 0, 0, 0
try:
# Read battery and firmware version attribute
data = requester.read_by_handle(0x0038)[0]
battery, version = unpack('<B6s',data)
version = filter(lambda x : x in string.printable, version)
except:
return 'error', 0, 0, 0, 0, 0
try:
# Enable real-time data reading
requester.write_by_handle(0x0033, str(bytearray([0xa0, 0x1f])))
except:
return 'error', 0, 0, 0, 0, 0
try:
# Read plant data
data = requester.read_by_handle(0x0035)[0]
except:
return 'error', 0, 0, 0, 0, 0
try:
temperature, sunlight, moisture, fertility = unpack('<hxIBHxxxxxx', data)
return version, battery, temperature, sunlight, moisture, fertility
except:
return 'error', 0, 0, 0, 0, 0
address = sys.argv[1]
version, battery, temperature, sunlight, moisture, fertility = ReadFlowerCare(address)
if version != 'error':
print("Firmware version: " + version)
print("Battery level: " + str(battery) + "%")
print("Light intensity: " + str(sunlight) + "lux (> 1000 lux)")
print("Temperature: " + str(temperature / 10.0) + "C (17C - 26C)")
print("Soil moisture: " + str(moisture) + "% (35% - 90%)")
print("Soil fertility: " + str(fertility) + "uS/cm (200 uS/cm - 1200 uS/cm)")
else:
print('error!')