Shelly4b Exporter

Allows Prometheus to scrape poer consumption values from Shelly 4b relay (https://shelly.cloud/products/shelly-4pro-smart-home-automation-relay/).

It takes values from HTTP API on device, check their documentation here https://shelly-api-docs.shelly.cloud/#shelly4pro-status for more info.

Sample Prometheus scrape config

 - job_name: 'Shelly4b'
   static_configs:
     - targets: ['127.0.0.1:9048']
   params:
     device_address: ['127.0.0.1:80']

...exporter needs to respond to http://127.0.0.1:9048/metrics?device_address=127.0.0.1:80 with sample metrics:

# HELP shelly4b_relay_meter_power Current real AC power being drawn, in Watts
# TYPE shelly4b_relay_meter_power gauge
shelly4b_relay_meter_power{name="None",pos="1"} 151.9
shelly4b_relay_meter_power{name="None",pos="2"} 1541.1
shelly4b_relay_meter_power{name="None",pos="3"} 27
shelly4b_relay_meter_power{name="None",pos="0"} 1005.5
# HELP shelly4b_relay_meter_total Total energy consumed by the attached electrical appliance in Watt-minute
# TYPE shelly4b_relay_meter_total gauge
shelly4b_relay_meter_total{name="None",pos="1"} 1531191
shelly4b_relay_meter_total{name="None",pos="2"} 15149448
shelly4b_relay_meter_total{name="None",pos="3"} 296835
shelly4b_relay_meter_total{name="None",pos="0"} 9902481

Port Setting

set SHELLY4B_EXPORTER_PORT envionment variable to port number you desire, defaults to 9048.

Pre-Compiled Binaries

see Release section for pre-compiled binaries like this one v0.1.0

Sample Grafana Dashboard

See .grafana/shelly4b.json for sample Grafana Dashboard