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import time
import board
import adafruit_dht
import prometheus_client
# Initial the dht device, with data pin connected to:
dhtDevice = adafruit_dht.DHT11(board.D4)
def get_humidity() -> int:
while True:
try:
humidity_r = dhtDevice.humidity
return humidity_r
except RuntimeError as error: # Errors happen fairly often, DHT's are hard to read, just keep going
print(error.args[0])
def get_temperature() -> int:
while True:
try:
temperature_c = dhtDevice.temperature
return temperature_c
except RuntimeError as error: # Errors happen fairly often, DHT's are hard to read, just keep going
print(error.args[0])
prometheus_client.REGISTRY.unregister(prometheus_client.GC_COLLECTOR)
prometheus_client.REGISTRY.unregister(prometheus_client.PLATFORM_COLLECTOR)
prometheus_client.REGISTRY.unregister(prometheus_client.PROCESS_COLLECTOR)
temperature_guage = prometheus_client.Gauge('temperature', 'Current temperature, degrees centigrade')
humidity_guage = prometheus_client.Gauge('humidity', 'Current humidity, relative percentage')
temperature_guage.set_function(get_temperature)
humidity_guage.set_function(get_humidity)
if __name__ == '__main__':
# Start up the server to expose the metrics.
prometheus_client.start_http_server(8000)
while True:
time.sleep(10)
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