2.2 KiB
Prometheus Sensors
This is a library that implements a set of sensor types, reading their values
periodically and exposing them to Prometheus using the prometheus-metrics
library.
Supported Sensors
DHT
This is using dht library; each sensor reading takes approximately 32ms (28ms
if there is no sensor on the GPIO in). They are placed on timers so as to
minimize pre-emption of the main application. DHT sensors are polled in order
based on sensors.dht_gpio pins and with a period of sensors.dht_period
which defaults to 3 seconds.
Please see the upstream source for more information on the driver.
Reported values (all types are gauges):
temperature{sensor="0",type="DHT"} 3.5
temperature{sensor="1",type="DHT"} 6.2
humidity{sensor="0",type="DHT"} 43.900002
humidity{sensor="1",type="DHT"} 35.599998
VEML6075
This is using veml6075-i2c library; one sensor is allowed based on I2C
address on the bus, normally 0x10, but configurable with sensors.veml6075_i2caddr
in mos.yml. The chip is polled with a period of sensors.veml6075_period
which defaults to 3 seconds, each sensor reading takes approximately 11ms.
Please see the upstream source for more information on the driver.
Reported values (all types are gauges):
UV{band="UVA",sensor="0",type="VEML6075"} 0
UV{band="UVB",sensor="0",type="VEML6075"} 2
UVIndex{sensor="0",type="VEML6075"} 0.00125
BME280
This is using bme280 library; one sensor is allowed based on I2C
address on the bus, normally 0x10, but configurable with sensors.bme280_i2caddr
in mos.yml. The chip is polled with a period of sensors.bme280_period
which defaults to 3 seconds, each sensor reading takes approximately 4ms.
Note that there are several versions of this popular barometer chip: BME280
is fully fledged and includes a hygrometer (measuring the relative humidity),
while BMP280 does not.
Please see the upstream source for more information on the driver.
Reported values (all types are gauges):
temperature{sensor="0",type="BME280"} 18.4
humidity{sensor="0",type="BME280"} 77.4
pressure{sensor="0",type="BME280"} 96720.4