Prometheus exporter for temperature/humidity data provided by DHT11/DHT22 sensors connected to a Raspberry PI GPIO
./dht_exporter
| Name | Default | Description |
|---|---|---|
| --version | Print version information | |
| --listen-address | :9330 | Address on which to expose metrics. |
| --path | /metrics | Path under which to expose metrics. |
| --device | 22 | Sensor type, either 11 or 22 for DHT11/DHT22 |
| --names | names.yaml | File mapping GPIOs to names |
The names.yaml files contains the gpio and name to use
names:
gpio: dht_sensor_01
# HELP dht_humidity_percent Humidity
# TYPE dht_humidity_percent gauge
dht_humidity_percent{location="dht_sensor_01"} 99.1
# HELP dht_temp Air temperature (in degrees C)
# TYPE dht_temp gauge
dht_temp{location="dht_sensor_01"} 24.6
# HELP dht_up Scrape was successful
# TYPE dht_up gauge
dht_up{location="dht_sensor_01"} 1
Connect pin1 to 3.3V, pin2 with a pull-up resistor (4.7k – 10kΩ) to a gpio pin (i used 4.7k and gpio 4) and pin4 to GND on the PI.
