45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
#!/usr/bin/python
|
|
import sys
|
|
import requests
|
|
import Adafruit_DHT
|
|
import config
|
|
import RPi.GPIO as GPIO
|
|
|
|
# Try to read the state of GPIO_PIN_TANKFULL
|
|
GPIO.setmode(GPIO.BCM)
|
|
GPIO.setup(config.GPIO_PIN_TANKFULL, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
|
|
|
|
# tank sensor has inverse logic - 0 when it is full 1 when it is not
|
|
# so we are inverting its value here
|
|
tankFull = not (GPIO.input(config.GPIO_PIN_TANKFULL) == GPIO.LOW)
|
|
GPIO.cleanup()
|
|
print 'Bacva puna: {}'.format(tankFull)
|
|
|
|
# Go on to DHT
|
|
SENSOR_TYPE = Adafruit_DHT.DHT11
|
|
controller_id = config.CONTROLLER_ID
|
|
owner = "Controller: %s" % controller_id
|
|
|
|
# Try to grab a sensor reading. Use the read_retry method which will retry up
|
|
# to 15 times to get a sensor reading (waiting 2 seconds between each retry).
|
|
humidity, temperature = Adafruit_DHT.read_retry(SENSOR_TYPE, config.GPIO_PIN_DHT)
|
|
|
|
# Un-comment the line below to convert the temperature to Fahrenheit.
|
|
# temperature = temperature * 9/5.0 + 32
|
|
|
|
# Note that sometimes you won't get a reading and
|
|
# the results will be null (because Linux can't
|
|
# guarantee the timing of calls to read the sensor).
|
|
# If this happens try again!
|
|
if temperature is not None and humidity is not None:
|
|
response = requests.post(config.SENSORDATA_URL, json={"owner": owner, "temperatureValue": temperature, "humidityValue":humidity, "tankFull": "1" if tankFull else "0",
|
|
"controllerId": controller_id
|
|
})
|
|
print 'Temp={0:0.1f}*C'.format(temperature)
|
|
print 'Humidity={0:0.1f}%'.format(humidity)
|
|
if response.status_code != 200:
|
|
print 'Failed to send temperature!'
|
|
|
|
else:
|
|
print 'Failed to get reading. Try again!'
|