csharpen/rtlamr2mqtt

Docker container to send rtlamr readings to a mqtt broker

RTLAMR2MQTT

This project was created to send readings made by RTLAMR + RTL_TCP to a MQTT broker. My user case is to integrate it with Home Assistant.

Noteworthy Updates

2022-04-12

• New tls_enabled parameter to avoid confusions
• Some fixes for the Add-On regarding the TLS configuration

2022-04-04

• New TLS parameters to MQTT connection
• New parameter: USB_RESET to address problem mentioned on #98

2022-02-11

• New configuration parameter: state_class (thanks to @JeffreyFalgout)
• Automatic MQTT configuration when using the Addon (thanks to @JeffreyFalgout)
• Fixed 255 characters limit for state value #86

Readme starts here

What do I need?

1) You need a smart meter First and most important, you must have a "smart" water/gas/energy meter. You can find a list of compatible meters here

2) You need an USB RT-SDR device I am using this one: NooElec NESDR Mini USB

3) You need a MQTT broker (Like Mosquitto)

4) Home assistant is optional, but highly recommended, because it is awesome!

How it looks like?

How to run and configure?

Docker and Docker-compose are the most indicated way. If you are not [running the add-on[(https://www.home-assistant.io/common-tasks/os#installing-third-party-add-ons), you must write the rtlamr2mqtt.yaml configuration file.

Create the config file on /opt/rtlamr2mqtt/rtlamr2mqtt.yaml for instance. The configuration must looks like this:

# -- Configuration file starts here --
# (Optional section)
general:
  # Sleep for this amount of seconds after one successful reading of every meter
  # This parameter is helpful to keep CPU usage low and the temperature low as well
  # Set this to 0 (default) to disable it
  sleep_for: 300
  # Set the verbosity level. It can be debug or info
  verbosity: debug
  # Enable/disable the tickle_rtl_tcp. This is used to "shake" rtl_tcp to wake it up.
  # For me, this started to cause the rtl_tcp to refuse connections and miss the readings.
  tickle_rtl_tcp: false
  # USB Reset. Use lsusb to get dev and bus number
  usb_reset: '005:001'

# MQTT configuration.
mqtt:
  # Whether to use Home Assistant auto-discovery feature or not
  ha_autodiscovery: true
  # Home Assistant auto-discovery topic
  ha_autodiscovery_topic: homeassistant

  # By default, leaving host, port, user, and password unset will tell
  # rtlamr2mqtt to use the default home assistant mqtt settings for those
  # options. If needed, you can override these default settings:
  # MQTT host name or IP address.
  host: 192.168.1.1
  # MQTT port.
  port: 1883
  # TLS Enabled? (False by default)
  tls_enabled: false
  # TLS CA certificate
  tls_ca: "/etc/ssl/certs/ca-certificates.crt"
  # TLS server certificate
  tls_cert: "/etc/ssl/my_server_cert.crt"
  # TLS self-signed certificate/insecure certificate
  tls_insecure: true
  # MQTT user name if you have, remove if you don't use authentication
  user: mqtt
  # MQTT user password if you use one, remove if you don't use authentication
  password: my-very-strong-password

# (Optional)
# This entire section is optional.
# If you don't need any custom parameter, don't use it.
# ***DO NOT ADD -msgtype, -filterid nor -protocol parameters here***
custom_parameters:
  # Documentation for rtl_tcp: https://osmocom.org/projects/rtl-sdr/wiki/Rtl-sdr
  rtltcp: "-s 2048000"
  # Documentation for rtlamr: https://github.com/bemasher/rtlamr/wiki/Configuration
  # If you want to disable the local rtl_tcp and use an external/remote one, you must add "-server=remote-ip-address:port" to the rtlamr section below.
  rtlamr: "-unique=true -symbollength=32"

# (Required section)
# Here is the place to define your meters
meters:
    # The ID of your meter
  - id: 7823010
    # The protocol
    protocol: scm+
    # A nice name to show on your Home Assistant/Node Red
    name: meter_water
    # (optional) A number format to be used for your meter
    format: "#####.###"
    # (optional) A measurement unit to be used by Home Assistant
    # Typical values are ft³ and m³ (use the superscript) for water/gas meters
    # and kWh or Wh for electric meters
    unit_of_measurement: "\u33A5"
    # (optional) An icon to be used by Home Assistant
    icon: mdi:gauge
    # A device_class to define what the sensor is measuring for use in the Energy panel
    # Typical values are "gas" or "energy". Default is blank.
    device_class:
    # "total_increasing" for most meters, "total" for meters that might go
    # backwards (net energy meters). Defaults to "total_increasing" if unset.
    state_class:
  - id: 6567984
    protocol: scm
    name: meter_hydro
    unit_of_measurement: kWh
    device_class: energy
# -- End of configuration file --

Run with docker

If you want to run with docker alone, run this command:

docker run --name rtlamr2mqtt \
  -v /opt/rtlamr2mqtt/rtlamr2mqtt.yaml:/etc/rtlamr2mqtt.yaml \
  -v /opt/rtlamr2mqtt/data:/var/lib/rtlamr2mqtt \
  -d /dev/bus/usb:/dev/bus/usb \
  --restart unless-stopped \
  allangood/rtlamr2mqtt

Run with docker-compose

If you use docker-compose (recommended), add this to your compose file:

version: "3"
services:
  rtlamr:
    container_name: rtlamr2mqtt
    image: allangood/rtlamr2mqtt
    restart: unless-stopped
    devices:
      - /dev/bus/usb
    volumes:
      - /opt/rtlamr2mqtt/rtlamr2mqtt.yaml:/etc/rtlamr2mqtt.yaml:ro
      - /opt/rtlamr2mqtt/data:/var/lib/rtlamr2mqtt

Home Assistant configuration:

To add your meters to Home Assistant, add a section like this:

utility_meter:
  hourly_water:
    source: sensor.<meter_name>
    cycle: hourly
  daily_water:
    source: sensor.<meter_name>
    cycle: daily
  monthly_water:
    source: sensor.<meter_name>
    cycle: monthly

If you have ha_autodiscovery: false in your configuration, you will need to manually add the sensors to your HA configuration.

This is a sample for a water meter using the configuration from the sample configuration file:

sensor:
  - platform: mqtt
    name: "My Utility Meter"
    state_topic: rtlamr/meter_water/state
    unit_of_measurement: "\u33A5"

You must change meter_water with the name you have configured in the configuration YAML file (below)

I don't know my meters ID, what can I do?

How to run the container in LISTEN ALL METERS Mode: If you don't know your Meter ID or the protocol to listen, you can run the container in DEBUG mode to listen for everything.

In this mode, rtlamr2mqtt will not read the configuration file, this means that nothing is going to happen other than print all meter readings on screen!

docker run --rm -ti -e LISTEN_ONLY=yes -e RTL_MSGTYPE="all" --device=/dev/bus/usb:/dev/bus/usb allangood/rtlamr2mqtt

Thanks to

A big thank you for all kind contributions! And a even bigger thanks to these kind contributors:

• AnthonyPluth
• jonbloom
• jeffeb3
• irakhlin
• ericthomas
• b0naf1de
• JeffreyFalgout

Credits to:

RTLAMR - https://github.com/bemasher/rtlamr

RTL_TCP - https://osmocom.org/projects/rtl-sdr/wiki/Rtl-sdr